List of Land-Grant Institutions and

Agricultural Experiment

Stations in the United States

For help in diagnosing and controlling plant diseases write to the Extension Plant Pathologist at the College of Agriculture of your State University or to your State Experiment Station. Bulletins, circulars, and spray schedules are available from the Bulletin Room or Mailing Clerk.

Alabama: Auburn University, Aubum, AL 36849-5624. Alaska: University of Alaska, Palmer, AK 99645. Arizona: University of Arizona, Tucson, AZ 85721-0036. Arkansas: University of Arkansas, Fayetteville, AR 72701. California: University of California, Davis, CA 95616-8680; Riverside, CA

92521-0415. Colorado: Colorado State University, Fort Collins, CO 80523-1177. Connecticut: University of Connecticut, Storrs, CT 06269-4087. Delaware: University of Delaware, Newark, DE 19717-1303. District of Columbia: University of the District of Columbia, Cooperative

Extension Service, Washington, D.C. 20017. Florida: University of Florida, Gainesville, FL 32611. Georgia: University of Georgia, Athens, GA 30602; Coastal Plain Station,

Tifton, GA 31793. Hawaii: University of Hawaii, Honolulu, HI 96822. Idaho: University of Idaho, Extension Service, Parma, ID 83660; Agricul-

tural Experiment Station, Moscow, ID 83843. lllinois: University of Illinois, Urbana, IL 61801. Indiana: Purdue University, West Lafayette, IN 47907-1155. lowa: lowa State University, Ames, IA 50011. Kansas: Kansas State University, Manhattan, KS 66506-5502.

910 • U.S. Land-Grant Institutions/Agricultural Experiment Stations

Kentucky: University of Kentucky, Lexington, KY 40546-009l. Louisiana: Louisiana Cooperative Extension, Baton Rouge, LA 70803;

Louisiana State University, University Station, Baton Rouge, LA 70894-5100.

Maine: University of Maine, Presque lsle, ME 04769. Maryland: University of Maryland, College Park, MD 20742; Cooperative

Extension, Ellicott City, MD 21042-1542. Massachusetts: University of Massachusetts, Arnherst, MA 01003. Michigan: Michigan State University, East Lansing, MI 48824-1312. Minnesota: University of Minnesota, St. Paul, MN 55108-6030. Mississippi: Mississippi Cooperative Extension Service, Mississippi, MS

39762. Missouri: University of Missouri, Columbia, MO 65211. Montana: Montana State University, Bozeman, MT 59717-3140. Nebraska: University of Nebraska, Lincoln, NE 68583-0722. Nevada: University of Nevada, Reno, NY 89529-2893. New Hampshire: University of New Hampshire, Durham, NH 03824. New Jersey: Rutgers, The State University, New Brunswick, NJ 08903. New Mexico: New Mexico State University, Las Cruces, NM 88003. New York: Cornell University, Ithaca, NY 14853; Agricultural Experiment

Station, Geneva, NY 14456. North Carolina: North Carolina State University, Raleigh, NC 27695-7616. North Dakota: North Dakota State University, Fargo, ND 58105. Ohio: Ohio State University, Columbus, OH 43210; Ohio Agricultural Re-

search & Development Center, Wooster, OH 4469l. Oklahoma: Oklahoma State University, Stillwater, OK 74078-9947. Oregon: Oregon State University, Corvallis, OR 97331-2903. Pennsylvania: The Pennsylvania State University, University Park, PA

16802. Puerto Rico: University of Puerto Rico, Ruiovedras, PR 00928. Rhode Island: University of Rhode Island, Kingston, RI 0288l. South Carolina: Clemson University, Clemson, SC 29634-0377. South Dakota: South Dakota State University, Brookings, SD 57007. Tennessee: University of Tennessee, Knoxville, TN 3790l. Texas: Texas A & M University, College Station, TX 77843-2132; Agricultural

Experiment Station, Lubbock, TX 79401-9746. Utah: Utah State University, Logan, UT 84322-5305. Vermont: University of Vermont, Burlington, VT 05405. Virgin Islands: Virgin Islands Extension Service, Kingshill, St. Croix, VI

00850. Virginia: Virginia Polytechnie Institute, Blacksburg, VA 24061-033l. Washington: Washington State University, Pullman, WA 99164-6430; West-

ern Washington Experiment Station, Puyallup, WA 98371-4989. West Virginia: West Virginia University, Morgantown, WV 26506-6057. Wisconsin: University of Wisconsin, Madison, WI 53706-1598. Wyoming: University of Wyoming, Laramie, WY 82071-3354.

Glossary

Acervulus, pl. Acervuli. A "little heap," an erumpent, cushionlike mass of hyphae bearing conidiophores and conidia, sometimes with setae; char­acteristic of the Melanconiales (Fig. 2.5).

Acicular. Needlelike. Aeciospore. Rust spore formed in an aecium. Aecium, pl. Aecia. A cluster-cup, or cuplike fruiting sorus in the rusts

(Fig. 3.55). Aerobic. Living or active only in the presence of oxygen. Amoeboid. Not having a cell wall and changing in form like an amoeba. Allantoid. Sausage-shaped. Alternate Host. One or other of the two unlike hosts of a heteroecious rust. Annulus. A ring; ringlike partial veil around stipe in the mushrooms. Antheridium, pl. Antheridia. Male sex organ in the fungi. Anthracnose. A disease with limited necrotic lesions, caused by a fungus

producing nonsexual spores in acervuli (Figs. 3.1,3.2). Antibiotic. Damaging to life; especially a substance produced by one mi­

croorganism to destroy others. Apothecium, pl. Apothecia. The cup- or saucer-like ascus-bearing fruiting

body; in thc Discomycete section of the Ascomycetes (Figs. 2.3, 3.53). Appressorium. A swelling on a fungus germ tube for attachment to host in

early stage of infection; found especially in anthracnose fungi and rusts. Ascocarp, or Ascoma. Any structure producing asci, as an apothecium,

perithecium. Ascomycetes. One of the three main groups of the fungi, bearing sexual

spores in asci. Ascospore. Produced in ascus by free cell formation.

912 • Glossary

Ascus, pI. Asci. Saclike, usually davate cell containing ascospores, typieally eight (Fig. 2.3).

Aseptate. Without cross-walls. Asexual. Vegetative, having no sex organs or sex spores; the imperfect stage

ofa fungus. Autoecious. Completing life cyde on one host; term used in rusts.

Bacteria. Mieroscopie one-celled organisms increasing by fission. Bactericide. Substance causing death of bacteria. Basidiomycetes. Class 3 in the Fungi, characterized by septate mycelium,

sometimes with damp-connections, and sexual spores on basidia (Fig.2.4).

Basidiospore. Spore produced on a basidium. Basidium, pI. Basidia. Club-shaped structure, which, after fusion of two

nudei, produces four basidiospores (Fig. 2.4). Binucleate. Having two nudeL Blight. A disease with sudden, severe leaf damage and often with general

killing of flowers and sterns. Blotch. A blot or spot, usually superficiaI. Breaking, of a virus. Loss of flower color in a variegated pattern, especially

in tulips.

Canker. Alesion on astern; a plant disease with sharply limited necrosis of the cortical tissue (Figs. 3.16, 3.17, 3.18).

Carrier. Infected plant showing no marked symptoms but source of infec-tion for other plants.

Catenulate. In chains, or in an end-to-end series. Cerebroid. With brainlike convolutions or folds. Chemotherapy. Treatment of internal disease by chemical agents that have

a toxie effect on the mieroorganism without injuring the plant. Chlamydospore. Thiek-walled, asexual resting spore formed by the round­

ing up of any mycelial cell (Fig. 3.46); also used for smut spores. Chlorosis. Yellowing of normally green tissue due to partial failure of

chlorophyll to develop; often due to unavailability of iron (Fig. 3.36). Cilium, pI. Cilia. Hairlike swimming organ on bacteria or zoospores. Cirrhus, pI. Cirrhi. A tendril or horn of forced-out spores. Clamp-connections. Outgrowths of hyphae which form bridges around

septa, thus connecting two cells; in Basidiomycetes (Fig. 2.4). Clavate. Club-shaped. Cleistothecium, pI. Cleistothecia. A perithecium without a special opening;

in powdery mildews (Fig. 3.42). Coalesce. Growing together into one body or spot. Coenocytic. Multinudeate; mycelia having no cell walls. Columella. Sterile central axis in a mature fruiting body (Fig. 2.2).

Glossary • 913

Concentric. One circle within another with a common center. Conidiophore. Simple or branched hyphae on which conidia are produced. Conidium, pI. Conidia. Any asexual spore except sporangiospore or chlamy-

dospore. Conk. Term used in forestry for sporophores of Polyporaceae on trees. Control. Prevention of, or reduction of loss from, plant disease. Coremium, pI. Coremia. Synnema, a cluster of erect hyphae bearing conidia

(Fig.2.5). Coriaceous. Like leather in texture. Culturing. Artificial propagation of organisms on nutrient media or living

plants. Cystidium, pI. Cystidia. Sterile, often swollen cell projecting from hyme­

nium in Basidiomycetes.

Damping-oJf. Seed decay in soil, or seedling blight. Decumbent. Resting on substratum with ends turned up. Decurrent. Running down the stipe or stern. Diagnosis. Identification of nature and cause of a disease. Dieback. Progressive death of branches or shoots beginning at tips. Defoliate. To strip or become stripped of leaves. Dichotomous. Branching, frequently successive, into two more or less equal

arms. Dimidiate. Having one half smaller than the other; of a perithecium, having

outer wall covering only top half. Discomycetes. The cup fungi, a subclass of Ascomycetes; with apothecia. Disease. A condition in which use or structure of any part of the living

organism is not normal. Disinfection. Freeing a diseased plant, organ, or tissue from infection. Disinfestation. Killing or inactivating disease organisms before they can

cause infection; on surface of seed or plant part, or in soil. Dissemination. Transport of inoculum from a diseased to a healthy plant. Disjunctor. Cell or projection connecting spores of a chain. Duster. Apparatus for applying fungicides in dry form.

Echinulate. Having small, pointed spines; used of spores. Endoconidium, pI. Endoconidia. Conidium formed within a hypha. Enphytotic. A plant disease causing constant damage from year to year. Epiphytotic. Sudden and destructive development of aplant disease over

an extensive area, an epidemie. Eradicant Fungicide. One that destroys a fungus at its source. Eradication. Control of disease by eliminating the pathogen after it is al­

ready established. Erumpent. Breaking through surface of sub stratum. Excentric. Off center.

914 • Glossary

Exclusion. Control of disease by preventing its introduction into disease­free areas.

Exudate. Liquid discharge from diseased tissues.

Fasciation. Joining side by side; a plant disease with flattened and some-times curved shoots.

Fascicle. A small bundle or duster. Filiform. Threadlike. Fimbriate. Fringed, or toothed. Flag. A branch with dead leaves on an otherwise green tree. Flagellum, pI. Flagella. Whiplike organ on a motile cell; cilium. Fruiting Body. Fungus structure containing or bearing spores; mushroom,

pycnidium, perithecium, apothecium, etc. Fumigant. A volatile disinfectant, destroying organisms by vapor. Fungicide. Chemical or physical agent that kills or inhibits fungi. Fungi Imperfecti. Fungi that have not been connected with the perfect or

sexual stage; most are imperfect states of Ascomycetes. Fungistatic. An agent preventing development of fungi without killing

them. Fungus, pl. Fungi. An organism withno chlorophyll, reproducing by sexual

or asexual spores, usually with mycelium with well-marked nudei. Fusiform. Spindle-like, narrowing toward the ends. Fusoid. Somewhat fusiform.

Gall. Outgrowth or swelling, often more or less spherical, of unorganized plant cells as result of attack by bacteria, fungi, or other organisms.

Gametangium. Gamete mother cello Gamete. A sex cell, especially one formed in a gametangium. Germ Tube. Hypha produced by a germinated fungus spore. Gill. Lamella or hymenium-covered plate on underside of cap of a mush­

room. Girdle. A canker that surrounds stern, completely cutting off water supply

and thus causing death; girdling roots also cause death. Glabrous. Smooth. Gleba. Sporulating tissue in an angiocarpous fruit body. Globose. Almost sphericaI. Gram-negative, Gram-positive. Not being stained, and being stained, by the

Gram stain used in dassifying bacteria.

Haustorium, pI. Haustoria. Special hyphal branch extended into living cell for purpose of absorbing food (Fig. 3.41).

Heteroecious. Undergoing different parasitic stages on two unlike hosts, as in the rusts.

Heterothallic. Of a fungus, sexes separate in different mycelia. Holocarpic. Having all the thallus used for a fruiting body.

Homothallic. Both sexes present in same mycelium. Hast. Any plant attacked by a parasite. Hyaline. Colorless, or nearly transparent. Hymenium. Spore-bearing layer of a fungus fruiting body.

Glossary • 915

Hyperplastic. Term applied to a disease producing an abnormally large number of cells.

Hypha, pI. Hyphae. Single thread of a fungus mycelium. Hypoplastic. Term applied to a disease with subnormal cell production. Hyphopodium, pI. Hyphopodia. More or less lobed appendage to a hypha. Hysterothecium. Oblong or linear perithecium, sometimes considered an

apothecium, opening by a deft.

Immune. Exempt from disease; having qualities that do not permit infec-tion.

Immunization. Process of increasing the resistance of a living organism. Imperfect Fungus. One lacking any sexual reproductive state. Imperfect State. State of life cyde in which asexual spores, or none, are

produced. Incubation Period. Time between inoculation and development of symp-

toms that can be seen. Indehiscent. Of fruit bodies, not opening, or with no special method. Infection. Process of beginning or producing disease. Infection Court. Place where an infection may take place, as leaf, fruit, petal,

etc. Injury. Result of transient operation of an adverse factor, as an insect bite,

or action of a chemicaI. Innate. Bedded in, immersed. Inoculation. Placing of inoculum in infection court. Inoculum. Pathogen or its part, as spores, fragments of mycelium, etc., that

can infect plants. Inoperculate. Not opening by a lido Intercellular. Between cells. Intracellular. Within cells. Intumescence. Knoblike or pustulelike outgrowth of elongated cells on

leaves, stems, etc., caused by environmental disturbanees.

Lamella. GilI. Lesion. Localized spot of diseased tissue. Locule. A cavity, especially one in astroma.

Macroconidia. Large conidia. Macroscopic. Large enough to be seen with the naked eye. Medulla. Loose layer of hyphae inside a thallus; body of a sderotium. Microconidia. Very small spores, now considered spermatia of a fungus also

having larger conidia.

916 • Glossary

Micron. 1/1000 millimeter, unit used for measuring spores. Microseopie. Too small to be seen except with the aid of a microseope; true

of most of the fungus structures shown in line drawings in this book. Mildew. Plant disease in which the pathogen is a growth on the surface. Molds. Fungi with conspicuous mycelium or spore masses, often sapro­

phytes. Monoecious. Male and female reproductive organs in same individual; in

rusts, all stages of life cyde on single species of plant. Multinucleate. Several nudei in same cello Mummy. Dried, shriveled fruit, result of disease. Muriform. Having cross and longitudinal septa. Mushroom. An agaric fruit body (Fig. 2.4). Mycelium pl. Mycelia. Mass of fungus hyphae. Mycelia Sterilia. Fungi Imperfecti where spores, except for chlamydo­

spores, are not present. Mycoplasmalike Organism. (MLO). A walless prokaryotic plant pathogen

which has a single-unit membrane. Mycorrhiza, pl. Mycorrhizae. Symbiotic, nonpathogenie association of fungi

and roots.

Necrosis. Death of plant cells, usually resulting in tissue turning dark. Necrotic. As an adjective, killing. Nematicide. Chemical or physical agent killing nematodes. Nematodes. Nemas, roundworms, eelworms, cause of some plant diseases.

Obligate Parasite. A parasite that can develop only in living tissues, with no saprophytic stage.

Obovate. Inversely ovate, narrowest at base. Obtuse. Rounded or blunted, greater than a fight angle. Oogonium, pl. Oogonia. Female sex organ in the Oomycetes (Fig. 4). Oomycetes. Subdass of the Phycomycetes, gametangia of unequal size. Oospore. Resting spore formed in a fertilized oogonium. Operculate. With a cover or lid, as in some asci. Ostiole. Porelike mouth or openings in papilla or neck of a perithecium or

pycnidium.

Papilla, pl. Papillae. Small, nipplelike projection. Paraphysis, pl. Paraphyses. A sterile hyphal element in the hymenium, es­

pecially in the Ascomycetes, usually davate or filiform. Paraphysoids. Threads of hyphal tissue between asci,like delicate paraphy­

ses but without free ends. Parasite. An organism that lives on or in a second organism, usually causing

disease in the la tter. Pathogen. Any organism or factor causing disease. Pathogenic. Capable of causing disease.

Glossary • 917

Pedieel. Small stalk. Perfeet State. Stage of life-cycle in which spores are formed after nuclear

fission. Peridium. Wall or limiting membrane of a sporangium or other fruit body,

or of a rust sorus. Peritheeium. Subglobose or flasklike ascocarp of the Pyrenomycetes

(Fig.2.3). Phialide. A cell that develops one or more open ends from which a basipetal

succession of conidia develops without an increase in length of the phialide itself.

Physiogenie Disease. Caused by unfavorable environmental factors. Physiologie Raees. Pathogens of same variety and species structurally the

same but differing in physiological behavior, especially in ability to par­asitize a given host.

Phytopathology. Plant pathology, science of plant disease. Phytoplasma. A MLO that is pathogenic to plants. Pileus. Hymenium-supporting part of a fruit body of a higher fungus; the

cap of a mushroom. Primary Infeetion. First infection by a pathogen after going through a resting

or dormant period. Prokaryotie. Organisms which lack a true nucleus; includes bacteria and

mycoplasmalike organisms. Promyeelium. Basidium of rusts and smuts. Pulvinate. Cushionlike in form. Pyenidium, pI. Pyenidia. Flasklike fruiting body containing conidia. Pyenium. Spermagonium in the rusts, the 0 stage, resembling a pycnidium

(Fig. 3.55).

Resistanee. Ability of a host plant to suppress or retard activity of a pathogen.

Resting Spore. A spore, often thick-walled, that can remain alive in a dor­mant condition for some time, later germinating and capable of initiating infection.

Resupinate. Flat on the substratum with hymenium on outer side. Rhizoid. Rootlike structure (Fig. 2.2). Rhizomorph. A cordlike strand of fungus hyphae. Ring Spot. Disease symptoms characterized by yellowish or necrotic rings

with green tissue inside the ring, as in virus diseases. Roguing. Removal of undesired individual plants. Rosette. Disease symptom with sterns shortened to produce a bunchy

growth habit. Russet. Brownish roughened areas on skins of fruit, from abnormal pro­

duction of cork caused by disease, insect, or spray injury. Rust. A fungus, one of the Uredinales, causing a disease also known as

rust.

918 • Glossary

Saprophyte. An organism that feeds on lifeless organic matter. Scab. Crustlike disease lesion; or a disease in which scabs are prominent

symptoms (Fig. 3.59). Sclerotium, pI. Sclerotia. Resting mass of fungus tissue, often more or less

spherical, normally having no spores in or on it (Figs. 3.51, 3.53). Scorch. Burning of tissue, from infection or weather conditions. Scutellum. Plate or shieldlike cover, as in Microthyriales. Septate. Having cross-walls, septa. Sessile. Having no stern. Seta, pI. Setae. A stiff hair, or bristle, generally dark-colored. Shothole. A disease symptom in which small round fragments drop out of

leaves, making them look as if riddled by shot. Sign. Any indication of disease other than reaction of the host plant -

spores, mycelium, exudate, or fruiting bodies of the pathogen. Slurry. Thick suspension of chemical; used for seed treatment. Smut. A fungus of the Ustilaginales, characterized by sooty spore masses;

the name also used for the disease caused by the smut. Sooty Mold. Dark fungus growing in insect honeydew. Sorus, pI. Sori. Fungus spore mass, especially of rusts and smuts; occasion­

ally, a group of fruiting bodies. Species. One sort of plant or animal; abbreviated as usp.u singular, and

uspp." plural. A genus name followed by sp. means that the particular species is undetermined. Spp. following a genus name means that several species are grouped together without being named individually.

Spermagonium. Walled structure in which spermatia are produced, a pyc­nium.

Spermatium, pI. Spermatia, a sex cell (+ or -), a pycniospore. Sporangiole. Small sporangium without a columella and with a small num­

ber of spores. Sporangiophore. Hypha bearing a sporangium. Sporangium. Organ producing nonsexual spores in a more or less spherical

wall (Fig. 2.1). Spore. A single- to many-celled reproductive body, in the fungi and lower

plants, which can develop a new plant. Sporidium, pI. Sporidia. Basidiospore of rusts and smuts. Sporodochium, pI. Sporodochia. Cluster of conidiophores interwoven on a

stroma or mass of hyphae (Fig. 2.5). Sporophore. Spore-producing or supporting structure-a fruit body; used

especially in the Basidiomycetes (Fig. 3.49). Sporulate. To produce spores. Sprayer. Apparatus for applying chemicals in liquid form. Sterigma, pI. Sterigmata. Projection for supporting a spore. Stipe. Astalk. Stipitate. Stalked. Strain. An organism or group of organisms differing in origin or minor

aspects from other organisms of same species or variety.

Glossary • 919

Stroma, pI. Stromata. Mass of fungus hyphae often including host tissue containing or bearing spores.

Subiculum, Subicle. Netlike woolly or crustlike growth of mycelium under fruit bodies.

Substrate. The substance or object on which a saprophytic organism lives and from which it gets nourishment.

Suscept. A living organism attacked by, or susceptible to, a given dis­ease or pathogen; in many cases a more precise term than host but less familiar.

Susceptible. Unresistant, permitting the attack of a pathogen. Swarmspore. Zoospore. Synnema, pI. Synnemata. Groups of hyphae sometimes joined together, gen­

erally upright and producing spores; coremium. Systemic. Term applied to disease in which single infection leads to general

spread of the pathogen throughout the plant body; or to a chemical that acts through the vascular system.

Teliospore. Winter or resting form of rust spore, from which basidium is produced (Figs. 3.54, 3.55, 3.56).

Telium. Sorus producing teliospores. Thallophyte. One of the simpler plants, belonging to the algae, bacteria,

fungi, slime molds, or lichens. Thallus. Vegetative body of a thallophyte. Tolerant. Capable of sustaining disease without serious injury or crop

loss. Toxin. Poison formed by an organism. Tylosis pI. Tyloses. Cell outgrowth into cavity of xylem vessel, plugging it.

Urediospore. Summer spore of rusts; one-celled, verrucose (Fig. 3.54). Uredium. Sorus producing urediospores.

Valsoid. Having groups of perithecia with beaks pointing inward, or even parallel with surface, as in valsa.

Vector. An agent, insect, man, etc., transmitting disease. Vein-banding. Symptom of virus disease in which regions along veins are

darker green than the tissue between veins. Verrucose. With small rounded processes or warts. Viroid. The smallest known viruslike infectious agent having no protein

coat and only a small amount of nucleic acid. Virulent. Highly pathogenic; with strong capacity for causing disease. Viruliferous. Virus-carrying; term applied particularly to virus-laden in­

sects. Virus. An obligate parasite capable of multiplying in certain hosts, ultra­

microscopic, recognizable by the effects produced in infected hosts. Has nucleic acid with protein coat.

920 • Glossary

Wilt. Loss of freshness or drooping of plants due to inadequate water sup­ply or excessive transpiration; a vascular disease interfering with uti­lization of water.

Witches' Broom. Disease symptom with abnormal brushlike development of many weak shoots.

Yellows. Term applied to disease in which yellowing or chlorosis is a prin­cipal symptom.

Zoospore. A swimming spore, swarmspore, capable of independent move­ment (Fig. 2.1).

Zygomycetes. Subclass of the Phycomycetes, characterized by gametes of equal size.

Zygospore. Resting spore formed from the union of similar gametes (Fig.2.2).

Selected Bibliography

In the preparation of Westcott's Plant Disease Handbook referenees have been reviewed that cover a eentury of scientifie reporting. An attempt has been made also to keep abreast of eurrent literature. To eite all of the individual articles that have been helpful would fill another book. The bibliography presented here is a selected small sampling of the field surveyed, with emphasis on sources eonsulted in making nomenclatural decisions.

Periodicals that are regularly reviewed include Plant Disease, Phy­topathology, Review of Applied Mycology, Journal of Economic Entomology, A.I.B.S. Bulletin (Agricultural Institute of Biological Scienees), Biological Ab­stracts, Agricultural Chemicals, NAC News (National Agricultural Chemicals Association), Arborist's News, Proceedings of the National Shade Tree Confer­ence, American Fruit Grower, American Vegetable Grower, Farm Journal, The Garden Journal (New York Botanical Garden), Plants and Gardens (Brooklyn Botanie Garden), The National Gardener (National Council of State Garden Clubs), publieations of many of the state garden clubs, most of the pop­ular garden magazines, yearbooks and magazines of several single plant societies. In addition, there are numerous bulletins, cireulars, and spray sehedules from state experiment stations.

The following referenees provide eoverage in depth of the eurrent tax­onomy of the major types of plant pathogens.

Bacteria: Volume 1 (1984) and Volume (1986) of Bergey's Manual of Sys­tematic Bacteriology, published by Williams and Wilkins, and Laboratory Guide for Identification ofPlant Pathogenic Bacterial (1980) by N. W. Sehaad, published by APS Press, The American Phytopathologieal Society.

922 • Selected Bibliography

Viruses: Classification and Nomenclature of Viruses (1979) by R. E. F. Matthews, published by Academic Press, and Descriptions of Plant Viruses, published by the Commonwealth Mycological Institute and As­sociation of Applied Biologists.

Fungi: Plant Pathogenic Fungi (1987) by J. A. von Arx, published by J. Cramer in Berlin, Ainsworth and Bisby's Dictionary of the Fungi (1983) by D. L. Hawksworth, B. C. Sutton and G. C. Ainsworth, 7th Edition, pub­lished by Commonwealth Mycological Institute, and Illustrated Genera of Imperfect Fungi (1972), by H. L. Barnett and H. B. Hunter, 3rd Edition, published by Burgess Publishing Company.

Nematodes: Pictorial Key to Genera of Plant-Parasitic Nematodes (1975) by W. F. Mai and H. H. Lyon, 4th Edition, published by Cornell University Press.

Finally, the APS Press, the publishing group of the American Phy­topathological Society, produces a Compendium of Plant Disease series that provides information about causes, cycles, and control of plant diseases. There are presently over 30 books in this series.

Ainsworth, G. c., and G. R. Bisby. A Dietionary of the Fungi. 5th ed. Commonwealth Mycological Institute, Kew, Surrey, England, 1961.

Alexopoulos, C. J. 1996. Introductory Mycology. John Wiley & Sons, NY, 868 pp. Allen, M. W. A review of the genus Tylenchorhynchus. Univ. of Calif. Public. in

Zoology 61(3):129-166,1955. -. Taxonomie status of the bud and leaf nematodes related to Aphelenchoides fra­

gariae (Ritzema Bos 1891). Proc. Helm. Soc. Wash, 19(2):108-120,1952. Allen, M. W., and H. J. Jensen. Pratylenchus vulnus (Nematoda, Pratylenchinae) a

parasite of trees and vines in California. Helm. Soc. Sei. Jour. 18:47-50, 1951. -. A review of the nematode genus Trichodorus with descriptions of tennew species.

Nematologiea 2(1):32-62,1957. Ameriean Society for Hortieultural Science. The care and feeding of garden plants.

National Fertilizer Association, Washington, DC, 1954. Anderson, Harry Warren. Diseases of Fruit Crops. McGraw-Hill Book Company,

Inc. New York, 1956. Anonymous. Distribution, symptoms and control of some of the more important

plant diseases. Plant Disease Reporter Suppl. 221:106--181, 1953. -. Plant pest handbook. Conn. Agr. Exp. Sta. Bul. 600, 1956. -. Watch out for witchweed. U.S. Dept. Agr. Pamphlet 331, 1957. -. 1968 Pesticides for New Jersey. N.J. College of Agr. Ext. Serv., 1967. -. 1968 Recommended fungicides and nematicides. Ext. Serv., College of Agr.,

Pennsylvania State University, University Park, PA. Arthur, J. C. Manual of the Rusts in United States and Canada, Purdue Research

Foundation. Lafayette, IN, 1934. With supplement by G. B. Cummins. The Hafner Publishing Co., Inc., New York, 1962.

Bailey, L. H., and Ethel Zoe Bailey, compilers. Hortus second. The MacMillan Com­pany, New York, 1941.

Baker, Kenneth E, ed. The U. C. System for Producing Healthy Container-grown plants. Cal. Agr. Exp. Sta. Ext. Man. 23, 1957.

Barnett, H. L., and Barry B. Hunter. Illustrated Genera of Imperfect Fungi. 3rd Edition. Burgess Publishing Company, Minneapolis, MN, 1972.

Selected Bibliography • 923

Bawden, F. C. Plant Viruses and Virus Diseases. 4th ed. The Ronald Press Company, New York, 1964.

Beemster, A B. R, and Jeanne Dijkstra, eds. Viruses of Plants. John Wiley & Sons, Inc., New York, 1966.

Bessey, Ernst Athearn. Morphology and Taxonomy of Fungi. The Blakiston Com­pany. Philadelphia, PA, 1950, and Hafner Publishing Co., 1961.

Birchfield, W. The burrowing nema situation in Florida. Jour. Economic Entomology 50:562-566, 1957.

Bisby, G. R An Introduction to the Taxonomy and Nomenclature of Fungi. Com­monwealth Mycological Institute, Kew, Surrey, England, 1945.

Boyce, John Shaw. Forest Pathology, 3rd ed. MeGraw-Hill Book Company, Ine., New York, 1961.

Brandes, Gordon A, Tulio M. Cordero, and Robert L. Skiles, eds. Compendium of Plant Diseases. Rohm & Haas Company, Philadelphia, PA, 1959.

Bray, D. F. Gas Injury to Shade Trees. Scientific Tree Topics 2(5):19-22. Bartlett Tree Research Laboratories, Stamford, CT, 1958.

Brierley, Philip. Viruses deseribed primarilyon ornamental or miseellaneous plants. Plant Disease Reporter Suppl. 150:410-482, 1944.

Brunt, A A, K. Crabtree, M. J. Dallvitz, A J. Gibbs, and L. Watson. Virus of Plants. Deseriptions and List from the VIDE Database. CAB International, University Press, Cambridge, 1484 pp, 1996.

Buehanan, RE., and N. E. Gibbons. Bergey' s Manual ofDeterminative Baeteriology. 8th ed. The Williams and Wilkins Company, Baltirnore, MD, 1974.

Buhrer, Edna M. Common names of some irnportant plant pathogenic nematodes. Plant Disease Reporter 38:535-541, 1954.

Burkholder, Walter H. In Bergey's Manual of Determinative Baeteriology. 7th ed. pp. 89-183, 288-292, 349-359, 579-597. The Williams and Wilkins Company, Bal­timore,MD, 1957.

Burnett, Harry C. Orehid Diseases. State of Florida Dept. of Agriculture, Div. of Plant Industry, Vol. I, No. 3, Gainesville, FL, 1965.

Cairns, Eldon J., et al. Symposium on new developments and new problems eon­cerning nematodes in the South. Plant Disease Reporter Suppl. 227:75-107, 1954.

Campana, Richard, chairman. Guide for eommunity-wide eontrol of Dutch elm disease. Midwestern Chapter, National Shade Tree Conference, 1957.

Caroselli, Nester E. Verticillium Wilt of Maples. RI. Agr. Exp. Sta. Bul. 335:3-84, 1957.

Carter, J. Cedric. Illinois Trees; Their Diseases. IL Nat. Hist. Survey Circ. 46. Urbana, IL, Rev. 1964.

-. Duteh Elm Disease in Illinois. IL Nat. Hist. Survey Circ. 53, 1967. -. The Wetwood Disease of Elm. IL Nat. Hist. Survey Cire. 50, 1964. Carter, W. Insects in Relation to Disease. John Wiley & Sons, New York, 1963. Chester, K. Starr. Nature and Prevention of Plant Diseases, 2nd ed. The Blakiston

Company, Philadelphia, PA, 1947. -. Nature and Prevention of Cereal Rusts as Exemplified in the Leaf Rust of Wheat.

Chroniea Botanica Company, Waltham, MA, 1946. Chitwood, B. G. Golden Nematode of Potatoes. U.S. Dept. Agr. Cire. 885, 1951. -. Root-knot nematodes. Part I. Arevision of the genus Meloidogyne Goeldi 1887.

Proe. Helm. Soe. Wash. 16:90-104, 1949. Chitwood, B. G., and W. Birehfield. Nematodes, Their Kinds and Characteristies.

State Plant Board of FL. Vol. II. Bul. 9:5-49, 1956. Chitwood, B. G., C. I. Hannon and R P. Esser. A new nematode genus, Meloidodera,

linking the genera Heterodera and Meloidogyne. Phytopathology 46:264-266,1956. Christensen, C. M. Common Fleshy Fungi. Burgess Publishing Company, Min­

neapolis, MN, Rev., 1965.

924 • Selected Bibliography

Christie, J. R. Plant Nematodes, Their Bionomies and ControI. University of Florida, Gainesville, FL, 1959.

Christie, J. R., and V. G. Perry. A root disease of plants eaused by a nematode of the genus Trichodorus. Sei. 113:491-493, 1951.

Christie, J. R., and A. 1. Taylor. Controlling Nematodes in the Home Garden. u.s. Dept. Agr. Farmers' Bull. 2048, 1952.

Chupp, Charles. Manual of Vegetable-garden Diseases. The Macmillan Company, New York, 1925.

-. A Monograph of the Fungus Genus Cercospora. Published by author, Ithaea, NY, 1953.

Chupp, Charles, and Arden F. Sherf. Vegetable Diseases and Their ControI. Ronald Press, New York, 1960.

Clements, Frederic E., and Cornelius 1. Shear. The Genera of Fungi. H. W. Wilson Company, New York. 1931. Reprint Hafner Publishing Company, New York, 1965.

Converse, Richard H. Diseases of Raspberries and Erect and Trailing Blaekberries. U.S. Dept. of Agr. Agricu1ture Handbook 310, 1966.

Cooke, W. B. Nomenc1atorial notes on Erysiphaeeae. Myeologia 44:57, 1952. Corbett, M. K., and H. D. Sisler, eds. Plant Virology. University of Florida Press,

Gainesville, FL, 1964. Couch, H. B. Diseases of Turfgrasses. Reinhold Publishing Corporation, New York,

1962. Couch, J. N. The Genus Septobasidium. University of North Carolina Press, Chapel

Hill, NC, 1938. Cox, R. E. Some Common Diseases of Flowering Dogwood in Delaware. DeI. Agr.

Expt. Sta. Cire. 27, 1954. Cummins, George B. illustrated Genera of Rust Fungi. Burgess Publishing Com­

pany. Minneapolis, MN, 1959. Cummins, George B., and John A. Stevenson. Acheck list of North American rust

fungi (Uredinales). Plant Disease Reporter SuppI. 240:109-193, 1956. Darrow, G. M., J. R. MeGrew, and D. H. Seott. Redueing Virus and Nematode

Damage to Strawberry Plants. U.S. Dept. Agr. Leaflet 414, 1957. Davies, R. E. and W. A. Sinc1air. Phytoplasma identity and disease etiology. Phy­

topathology 88:1372-1379,1998. Davis, Robert E., Robert F. Whiteomb, and Russell 1. Steere. Remission of aster

yellows disease by antibioties. Seienee 161 (No. 3843); 793-795, 1968. Davis, Speneer H., and C. C. Hamilton. Diseases and Insect Pests of Rhododendron

and Azalea. NJ. Agr. Exp. Sta. Cire. 571, 1955. Dickson, James G. Diseases of Field Crops. 2nd ed. MeGraw-Hill Book Company,

Ine., New York, 1956. Dickson, R. C. A working list of the names of aphid veetors. Plant Disease Reporter

39:445-452, 1955. Diener, T. 0.1979. Viroids and Viroid Diseases. John Wiley & Sons, NY, 252 pp. Diener, T. O. 1987. The Viroids. Plenum Press, NY, 344 pp. Dimoek, A. W. The Gardener's ABC of Pest and Disease. M. Barrows and Company,

Ine., New York, 1953. Dimoek, A. W., et aI. 1975 Cornell Recommendations for Commercial Floriculture

Crops. N.Y. State College of Agricu1ture, Ithaea, NY, 1975. Dimond, A. E., and E. M. Stoddard. Toxicity to Greenhouse Roses from paints

Containing Mereury Fungicides. Conn. Agr. Exp. Sta. Bul. 595, 1955. Dittmer, Dorothy S., ed. Handbook ofToxieology. VoI. V. Fungicides. W. B. Saunders

Co., Philadelphia, PA, 1959. Dochinger, Leon S. Vertieillium wilt, its nature and eontroI. Proe. National Shade

Tree Conferenee 33:202-212, 1957.

Selected Bibliography • 925

Doolittle, S. P., A. L. Taylor, and L. L. Danielson. Tomato Disease and Their Control. U.S. Dept. Agr. Agriculture Handbook 203, 1961.

Dowson, W. J. Plant Diseases Due to Bacteria. 2nd ed. Cambridge University Press, New York, 1957.

Duddington, C. L. The Friendly Fungi. A New Approach to the Eelworm problem. Faber and Faber, London, 1957.

Elliott, Charlotte. Manual of Bacterial Plant Pathogens. Rev. ed. The Williams and Wilkins Company, Baltimore, MD, 1952.

Emsweller, S. L., Philip Brierley, and Floyd F. Smith. Roses for the Horne. U.S. Dept. Agr. Horne and Garden Bul. 25, 1963.

Engelhard, Arthur W. Host index of Verticillium albo-atrum. Reinke & Berthe. Plant Disease Reporter Suppl. 244:23--49, 1957.

Esau, Katherine. Plants, Viruses, and Insects. Harvard University Press, Cambridge, MA.196l.

Fauquet, C. M., L. Berthiaume, H.-W. Ackermann, C. H. Calisher. R. Goldbach, and P. Payment. Introduction to the universal system of virus taxonomy. Archives of Virology. Suppl. 10:1-18. 1995.

Fauquet, C. M., and G. P. Martelli. Updated ICTV list of names and abbreviations of viruses, viroids and satellites infecting plants. Archives of Virology 140:393--413, 1995.

Fawcett, Howard S. Citrus Diseases and Their Control. 2nd ed. McGraw-Hill Book Company, Inc., New York, 1936.

Feit, Ephraim Porter, and R. Howard Rankin. Insects and Diseases of Ornamental Trees and Shrubs. The Macmillan Company, New York, 1932.

Fenska, Richard E. Tree Experts Manual. 2nd ed. A. T. De La Mare Company, Inc., New York, 1954.

Filipev,1. N., and J. H. Schuurmans Stekoven. A Manual of Agricultural Helminthol­ogy. E. J. Brill Co., Leiden, Holland, 1941.

Fischer, G. W. Manual of the North American Smut Fungi. The Ronald Press Com­pany, New York, 1953.

Fischer, G. W., and C. S. HoIton. Biology and Control of the Smut Fungi. The Ronald Press Company, New York, 1957.

Fitzpatrick, Harry Morton. The Lower Fungi - Phycomycetes. McGraw-Hill Book Company. Inc., New York, 1930.

Forsberg, Junius L. Diseases of Ornamental Plants. Univ. of Illinois, College of Agriculture Special Publ. No. 3, Urbana, IL, 1975.

Fowler, Marvin E., and G. F. Gravatt. Reducing Damage to Trees from Construction Work. U.S. Dept. Agr. Farmers' Bul. 1957, 1945.

Frear, Donald E. H., ed. Pesticide Handbook Entoma. 20th ed. College Science Publishers, State College, PA, 1968. (Revised each year, this edition lists 9486 pesticides by trade names and formulae.)

Frear, Donald E. H. Chemistry of the Pesticides. 3rd ed. D. Van Nostrand Company, Inc., Princeton, NJ, 1955.

Gambrell, F. L., and R. M. Gilmer. Insects and Diseases of Fruit Nursery Stocks and Their Control. NY (Geneva) Agr. Exp. Sta. Bul. 776, 1956.

Garrett, S. D. Root Disease Fungi. Chronica Botanica Company, WaItham, MA, 1944.

Gilman, Joseph c. A Manual of Soil Fungi. 2nd ed. Iowa State College Press, Ames. IA, 1957.

Golden, A. M. Taxonomy of the Spiral Nematodes (Rotylenchus and Stelicotylenchus) and the Developmental Stages and Host Parasite Relationships of R. buxophilus n. sp. Attacking Boxwood. Univ. MD. Bul. A-85, 1956.

Golden, A. M., and A. L. Taylor. Rotylenchus christiei, n. sp., a new spiral nematode associated with roots of turf. Proc. Helm. Soc. Wash. 23:109-112, 1956.

926 • Selected Bibliography

Goodey, T. Plant Parasitic Nematodes and the Diseases They Cause. E. P. Dutton and Company, New York, 1933.

-. Soil and Fresh Water Nematodes. 2nd ed. Methuen & Co., Ud., London, Eng­land,1963.

Goodman, Robert N., Zoltan Kiraly, and Milton Zaitlin. The Biochemistry and Phys­iology of Infectious Plant Disease. D. Van Nostrand Company, Inc., Princeton, NJ,1967.

Gould, Charles J., ed. Handbook on Bulb Growing and Forcing. Northwest Bulb Growers Assoeiation, Mt. Vernon, WA, 1957.

Gould, Charles J., M. R Harris, and George W. Eade. Disease of Ornamentals. State Coll. Wash. Agr. Ext. Mimeo 683.

Gram, Ernest, and Anna Weber. Plant Diseases in Orchard, Nursery and Garden Crops. Ed. and adap. by R W. G. Dennis. Tr. from the Danish by Evelyn Ramsden. Philosophical Library, New York, 1953.

Granados, Robert R, Karl Maramorosch, and Eishiro Shikata. Mycoplasma: Sus­pected etiologic agent of corn stunt. Nat. Acad. Sei. Proc. 60, No. 3:841-844, 1968.

Guba, Emil. Monograph of Monochaetia and Pestalotia. Harvard University Press, 1961.

Hawksworth, Frank G., and Delbert Wiens. Biology and Classification of Dwarf Mistletoes (Arceuthobium). U.S. Dept. Agr. Agriculture Handbook 401,1972.

Hayley, Denis, ed. Offieial FDA Tolerances. National Agricultural Chemicals As­soeiation News 25(3):3-23, 1967.

Heald, Frederick DeForest. Manual of Plant Diseases. 2nd ed. McGraw-Hill Book Company, Inc., New York, 1933.

Hedden, o.K., J. D. Wilson, and J. P. Sleesman. Equipment for Applying Soil Pes­tieides. U.S. Dept. Agr. Agriculture Handbook 297, 1966.

Hepting, George H. Diseases of Forest and Shade Trees of the United States. Dis­tributed and processed as Diagnosis of Disease in American Forest and Shade Trees. U.S. Dept. Agric. Forest Service, in 5 volumes, dated 1964, 1966, 1968.

Hildebrand, Earl M., and Harold T. Cook. Sweetpotato Diseases. U.S Dept. Agr. Farmers' Bul. 1059, Rev. 1959.

Holmes, Franeis O. Virales. In Bergey' s Manual of Determinative Bacteriology. 6th ed., pp. 1128--1224. The Williams and Wilkins Company, Baltimore, MD, 1948.

Holmes, Franeis W., and Clifford S. Chater. Culture, Diseases, Injuries, and Pests of Maples in Shade and Ornamental Plantings. Univ. of Massachusetts Coop. Ext. Serv. Publ. 443, 1966.

Holton, C. S., G. W. Fischer, R W. Fulton, Helen Hart, and S. E. A. McCallan, eds. Plant Pathology, Problems and Progress. University ofWisconsin Press, Madison, WI,1959.

Hopkins, J. C. E, ed. Common Names of Viruses Used in tile Review of Applied Mycology. Rev. Appl. Myc. Suppl. 35, 1957.

Hopper, Bruce E., and Eldon J. Cairns. Taxonomic Keys to Plant, Soil and Aquatic Nematodes. Alabama Polytechnic Institute, Auburn, AL, 1959.

Horsfall, James G. Prineiples of Fungieidal Action. Chronica Botanica Company, Waltham, MA, 1956.

Horsfall, J. G., and A. E. Dimond, eds. Plant Pathology, An Advanced Treatise. 3 volumes. Academic Press, New York, 1959, 1960.

Horsfall, James G. and Raymond J. Lukens. Selectivity of Fungicides. Connecticut Agr. Exp. Sta. Bul. 676, 1966.

Horst, R K. Compendium of Rose Diseases. APS Press, St. Paul, MN, 72 pp, 1983. Horst, R K. and P. E. Nelson. Compendium of Chrysanthemum Diseases. APS

Press, St. Paul, MN, 88 pp. Horst, R K. Viroid. McGraw-Hill Yearbook Science and Technology. McGraw-HilI

Book Company, Inc., New York, 1977.

Selected Bibliography - 927

Horst, R K, and A. W. Dimock. Diseases ofBearded Irises. N.Y. State Agr. Exp. Sta. Bul. 128, 1977.

Horst, R K, and P. E. Nelson. Diseases of Chrysanthemums. N.Y. State Agr. Exp. Sta. Bul. 85, 1975.

Hough, Walter S., and A. Freeman Mason. Spraying, Dusting and Fumigating of Plants. Rev. ed. The MacMillan Company, New York 1951.

Howard, E L., J. B. Rowell, and H. L. Keil. Fungus Diseases of Turf Grasses. RI Agr. Exp. Sta. Bul. 308, 1951.

Hubert, E P. Common names of diseases of woody plants. Plant Disease Reporter Suppl. 206:206-235. 1951.

Hutehinson, Martin T. Crop rustling nematodes cost $15 million yearly. NJ Agr. 41(1):9-12,1959.

Hutehinson, M. T., et al. Plant Parasitic Nematodes of New Jersey. NJ Agr. Exp. Sta. Bul. 796, 1961.

Irons, Frank. Hand Sprayers and Dusters. U.S. Dept. Agr. Horne and Garden Bul. 63,1967.

Jenkins, Anna E. A specific term for diseases caused by Elsinae and Sphacelarna. Plant Disease Reporter 31:71, 1947.

Jenkins, W. R, and D. P. Taylor. Plant Nematology. Reinhold Publishing Corpora­tion. New York, 1967.

Jenkins, W. R, D. P. Taylor, R A. Rhode, and B. W. Coursen. Nematodes Associated with Crop Plants in Maryland. Univ. MD. Bul. A-89, 1957.

Johnson, Howard W., Donald W. Chamberlain, and S. G. Lehman. Diseases of Soybeans and Methods of Control. U.S. Dept. of Agr. Cire. 931, 1954.

Johnson, W. T., H. J. Kastl, eds. A Guide to Safe Pest Control Around the Horne. Cornell Mise. Bul. 74, 1971.

Klotz, Leo J. Color Handbook of Citrus Diseases. 3rd ed. Univ. of California, Div. of Agricultural Sciences, Berkeley, CA, 1961.

Koltunow, A. M. and M. A. Rezaian. A scheme for viroid classification. Intervirology 30:194-201,1989.

Kreitlow, K W., and E V. Juska. Lawn diseases. U.S. Dept. Agr. Horne and Garden Bul. 61, Rev. 1967.

Lapage, S. P., P. H. A. Sneath, E. E Lissel, V. B. D. Skerman, H. P. R Seelizer, and W. A. Clark, 1992. Intern. Code of Nomenclature of Bacteria (1970 Revision), Amer. Soe. for Microbiol. Washington, D.C.

Large, E. C. The Advance of the Fungi. Henry Holt and Company, New York, 1940 (Paperback, Dover Publishing, Inc., New York, 1962).

Lawrence, Fred P., and James E. Brogden. Control of Insects and Diseases of Door­yard Citrus Trees. Univ. of FL Agr. Ext. Servo Cire. 139, 1955.

Leach, J. G. Insect Transmission of Plant Diseases. McGraw-Hill Book Company, New York, 1940.

Lentz, Paul L. Stereurn and Allied Genera of Fungi in the Upper Mississippi Valley. U.5. Dept. Agr. Mono. 24, 1955.

Leukel, R W., and V. G. Tapke. Cereal Smuts and Their Control. U.S. Dept. of Agr. Farmers' Bul. 2069, 1954.

Lowe, J. L. Polyporaceae of North America; the genus Farnes. NY State College of Forestry Tech. Publ. 80, 1957.

Mai, W. E, and M. B. Harrison. The Golden Nematode. Cornell Ext. Bul. 870, 1959. Maramorosch, Karl, reporter. A new system of classifying viruses proposed by the

International Provisional Virus Nomenclature Committee. Phytopathology 55: 1158,1965.

Maramorosch, K, E. Shikata, and R R Granapos. Mycoplasma-like bodies in leathoppers and diseased plants. Phytopathology 58:886, 1968.

928 • Selected Bibliography

Marshall, Rush P. Care of Damaged Shade Trees. US. Dept. of Agr. Farmers' Bul. 1896,1942.

Marshall, Rush P., and Alma M. Waterman. Common Diseases of Important Shade Trees. U.S. Dept. of Agr. Farmers' Bul. 1987, 1948.

Mattelli, G. P. Classification and nomenclature of plant viruses: state of the art. Plant Disease 76:436-442, 1992.

Martin, G. W. Outline of the Fungi. W. C. Brown Co., Dubuque, IA, 1950. -. Are fungi plants? Mycologia 47:779-792, 1955. -. Key to the Families of Fungi. In A Dictionary of the Fungi. 5th ed., pp. 497-519,

1961. May, Curtis. Diseases of Shade and Ornamental Maples. US. Dept. of Agr. Hand­

book 211, 1961. -. Rusts of Juniper, flowering crabapple and hawthorn. American Horticultural

Magazine 44:29-32,1965. Mayo, M. A. and M. Horzinek. A revised version of the international code of virus

classification and nomenclature. Archives of Virology 143:1645-1654, 1998. McFadden, Lorne A. Palm diseases. American Horticultural Magazine 40: 148-150,

1961. McGrew, J. R Strawberry Diseases. U.S. Dept. of Agr. Farmers' Bul. 2140, Rev.1966. Meister, R T., ed. Farm Chemieals; 1967 Handbook. Meister Publishing Company.

Willoughby, OH. 1967 (Revised each year). Melhus, Irving E., and George C. Kent. Elements of Plant Pathology. The MacMillan

Company, New York, 1939. Miller, Howard N. Investigations with Antibiotics for Control of Bacterial Diseases

of Foliage Plants. FL Agr. Exp. Stas. Jour. Sero 420, 1955. Mills, W. D., and A. A. Laplante. Diseases and Insects in the Orchard. Cornell Ext.

Bul. 711. Rev, 1954. Moore, Agnes Ellis. Bibliography of Forest Disease Research in the Department of

Agriculture. Mise. publ. 725, 1957. Moore, W. C. Diseases ofbulbs. Ministry of Agriculture and Fisheries (Great Britain)

Bul. 117, 1939. Murphy, F. A., C. M. Fauquet, D. H. L. Bishop, S. A. Ghabrial, A. W. Jarivs, G.

P. Martelli, M. A. Mayo and M. D. Summers. Virus taxonomy, classification and nomenclature of viruses. 6th Report ofInternational Committee for the Taxonomy of Viruses, Archives of Virology, Suppl. 10:596 pp, 1995.

National Research Council, Subcommittee on Plant Pathogens, Agricultural Board. Plant Disease Development and Control. National Academy of Sciences, Wash­ington, DC, 1969.

Nelson, Ray. Diseases of gladiolus. MI Agr. Exp. Sta. Spec. Bul. 350, 1948. Nienstaedt, Hans, and Arthur H. Graves. Blight Resistant Chestnuts. CT Agr. Exp.

Sta. Circ. 192, 1955. Noble, Mary, J. de Tempe, and Paul Neergaard. An Annotated List of Seed-borne

Diseases. Commonwealth Mycological Institute, Kew, Surrey, England, 1958. Osborn, M. R, A. M. Philips, and William C. Pierce. Insects and Diseases of the

Pecan and Their Control. U.S. Dept. of Agr. Farmers' Bul. 1829, 1954. Parker, K. G., E. G. Fisher, and W. D. Mills. Fire Blight on Pome Fruits and its

Control. Cornell Ext. Bul. 966, 1956. Parris, G. K. Diseases of Watermelons. FL Agr. Exp. Stas. Bul. 491, 1952. Pirone, Pascal P. Tree Maintenance. 3rd ed. Oxford University Press, New York,

1959. Pirone, Pascal P. Diseases and Pests of Ornamental Plants. 4th ed. The Ronald Press

Company, New York, 1970. Pirone, Pascal P., Bernard O. Dodge, and Harold W. Rickett. Diseases and Pests of

Ornamental Plants. The Ronald Press Company, New York, 1960. (This is the 3rd ed. of Dodge and Rickett's book of the same name.)

Selected Bibliography - 929

Plakidas, A G. Strawberry Diseases. Louisiana State University Press, Baton Rouge, LA,1964.

Pyenson, Louis L. Elements of Plant Protection. John Wiley & Sons, Inc. New York, 1951.

-. Keep your Garden Healthy. E. P. Dutton & Co., Inc, New York, 1964. Reed, L. B., and S. P. Doolittle. Insects and Diseases of Vegetables in the Horne

Garden. U.S. Dept. of Agr. Horne and Garden Bul. 46, 1967. Roberts, Daniel A, and Carl W. Boothroyd. Fundamentals of Plant Pathology. W.

H. Freeman and Company, San Francisco, CA, 1972. Rogers, Donald P. The genus PellicuZaria (Thelephoraceae). Farlowia 1(1):95-118,

1943. Rohde, Richard A, and William R. Jenkins. Basis for Resistance of Asparagus offici­

naZis var. altiZis L. to the Stubby-root Nematode Trichodorus christiei Allen. Univ. MD Bul. A-97, 1958.

Salmon, Emest S. A Monograph of the Erysiphaceae. Mem. Torrey Bot. Club 9:1-292,1900.

Sasser, J. N. Identification and Host-parasite Relationships of Certain Root-knot Nematodes. Univ. MD Agr. Exp. Sta. Tech. Bul. A-77, 1954.

Sasser, J. N., and Eldon J. Caims, eds. Plant Nematology Notes, from Workshops, 1954 and 1955. Southem Regional Nematode Project (S-19). 2nd ed. 1958.

Sasser, J. N., and W. R. Jenkins, eds. Nematology, Fundamentals and Recent Ad­vances with Emphasis on Plant Parasitic and Soil Forms. Univ. of North Carolina Press, Chapel Hill, NC, 1960.

Scharpf, Robert E, and Frank G. Hawksworth. Mistletoes on hardwoods in the United States. US. Dept. Agr. Forest Pest Leaflet 147, 1974.

Schindier, A. E Parasitism and pathogenicity of Xiphinema diversicaudatum, an ec­toparasitic nematode. Nematologica 2(1):25-31,1957.

Schroth, Milton N., and D. C. Hildebrand. A chemotherapeutic treatment for selec­tively eradicating crown gall and olive knot neoplasms. Phytopathology 58:848-854,1968.

Seaver, Fred J. The North American Cup-fungi (opereulates). Published by the author, New York, 1928, 1942 (now available from Hafner Publishing Company).

Seymour, Arthur Bliss. Host Index of the Fungi of North America. Harvard Uni­versity Press, Cambridge, MA, 1929.

Sharvelle, E. G. The Nature and Uses of Modem Fungicides. Burgess Publishing Company, Minneapolis, MN, 1961.

Sher, S. A, and M. W. Allen. Revision of the genus PratyZenchus (Nematoda, Ty­lenchidae). Univ. CA Publie. in Zool. 57(6):441-470, 1953.

Shurtleff, Malcolm C. How to Control Plant Diseases in Hornes and Gardens. 2nd ed. IA State University Press, Ames, IA, 1966.

Sinclair, J. B., ed. Fungicide-Nematicide Tests-Results of 1967. Ameriean Phy­topathological Society, 1968.

Smith, Kenneth M. A Textbook of Plant Virus Diseases. 2nd ed. Little, Brown and Company, Boston, MA, 1957.

Smith, K. M. Plant Viruses. 4th ed. Methuen & Co., Ltd., London, 1968. Smith, Ralph E. Diseases of Flowers and Other Ornamentals. CA Agr. Ext. Cire.

118,1940. -. Diseases of Truek Crops. CA Agr. Ext. Cire. 119, 1940. -. Diseases of Fruits and Nuts. CA Agr. Ext. Cire. 120, 1941. Snyder, W. c., and H. H. Hansen. The Species Coneept in Fusarium. Amer. Jour. Bot.

27:64-67,1940 and 32:657-665, 1945. Ann. New York Aead. Sei. 60:6-23, 1954. Sprague, Howard B., ed. Hunger Signs in Crops. 3rd ed. David MeKay Co., Inc,

New York, 1964.

930 • Selected Bibliography

Sprague, Roderick. Diseases of Cereals and Grasses in North America. The Ronald Press Company, New York, 1950.

Stakman, E. c., and J. George Harrar. Principles of Plant Pathology. The Ronald Press Company, New York, 1957.

Steiner, G. Plant Nematodes the Grower Should Know. FL Dept. Agr. Bul. 131, 1956. Spears, Joseph F. The Golden Nematode Handbook. U.S. Dept. Agric. Agricultural

Handbook 353, 1969. Stevens, F. L. Plant Disease Fungi. The Macmillan Company, New York, 1925. Stevens. F. L., and J. G. Hall. Diseases of Economic Plants. The Macmillan Company,

New York, 1933. Stevens, N. E., and R. B. Stevens. Disease in Plants. Chronica Botanica Company,

Waltham, MA, 1952. Streets, R. B. Phymatotrichum (cotton or Texas) Root Rot in Arizona. Univ. of Ari­

zona Tech. Bul. 71, 1937. Strong, F. C. Nature and control of anthracnose of shade trees. Arborists News

22(5):33-39,1957. Suit, R. F. Parasitic Diseases of Citrus in Florida. FL Agr. Exp. Stas. Bul. 463, 1949. Tarjan, Armen C. Check List of Plant and Soil Nematodes. University of Florida

Press, Gainesville, FL, 1960. Taylor, A. L., V. H. Dropkin, and G. C. Martin. Perineal patterns of root-knot nema­

todes. Phytopathology 45:26-34, 1955. Thorne, Gerald. Principles ofNematology. McGraw-Hill Book Company, Inc., New

York,1961. --. On the classification of the Tylenchida, new order (Nematoda, Phasmidia).

Proc. Helm. Soc. WA 16:37-73, 1949. Torgenseon, D.C., Roy A. Young, J. A. Milbrath. Phytophthora Root Rot Diseases

of Lawson Cypress and Other Ornamentals. OR Exp. Sta. Bul. 537, 1954. Toussoun, T. A., and P. E. Nelson. A Pictorial Guide to the Identification of Fusarium

Species. The Pennsylvania State Univ. Press, University Park and London, 1968. U.S. Department of Agriculture. Trees. The Yearbook of Agriculture, 1949. Wash-

ington, DC. -. Plant Diseases. The Yearbook of Agriculture, 1954. -. Soil. The Yearbook of Agriculture, 1957. -. Index of Plant Diseases in the United States. Agriculture Handbook 165, 1960. -. Index of Plant Virus Diseases. Agriculture Handbook 307,1966. -. Virus Diseases and Other Disorders with Virus-like Symptoms of Stone Fruits

in North America. Agriculture Handbook 10, 1951. -. Power Sprayers and Dusters. Farmers' Bul. 2223, 1966. Van Regenmortel, M. H. V. Applying the species concept to plant viruses. Archives

of Virology 104:1-17, 1989. -. Virus species, a much overlooked but essential concept to plant viruses. Inter­

virology 31:241-254,1990. -. Concept of virus species. Biodiversity and Conservation 1:263-266. -. How to write the names of virus species. Archives of Virology 144:1041-1042,

1999. -, C. M. Fauquet, D. H. L. Bishop, E. Carstens, M. Estes, S. Lemon, D. McGeoch, R.

B. Wickner, M. A. Mayo, C. R. Prigle, and J. Maniloff. f'lh Report of International Committee for the Taxonomy of Viruses. Academic Press, New York, 1999.

Walker, John Charles. Diseases of Vegetable Crops. McGraw-Hill Book Company, Inc., New York, 1952.

-. Plant Pathology. 2nd ed. McGraw-Hill Book Company, Inc., New York, 1957. Walker, J. c., and R. H. Larson. Onion Diseases. US. Dept. of Agr. Agriculture

Handbook 208, 1961.

Selected Bibliography • 931

Weiss, Freeman. Ovulinia, a new genetic segregate from Sc/erotinia. Phytopathology 30:236-244, 1940.

-. Viruses described primarilyon leguminous vegetables and forage crops. Plant Disease Reporter Suppl. 155:82-140, 1945.

-. Viruses, virus diseases and similar maladies on potatoes, Solanum tuberosum. Plant Disease Reporter. Suppl. 155:82-140, 1945.

Welch, D. S., and J. G. Matthysse. Control of the Dutch Elm Disease in New York State. Comell Ext. Bul. 932, 1955.

Westeott, Cynthia. Garden Enemies. D. Van Nostrand Company, Ine., Prineeton, NJ,1953.

-. Are You Your Garden's Worst Pest? Doubleday and Company, Inc., New York, 1961.

-. The Gardener's Bug Book. 3rd ed. Doubleday and Company, 1964. -. Anyone Can Grow Roses. 4th ed. D. Van Nostrand Company, Ine, 1965. Westeott, Cynthia, and Jerry T. Walker, eds. Handbook on Garden Pests. Brooklyn

Botanic Garden, Brooklyn, NY, 1966. Whetzel, H. H. A synopsis of the genera and speeies of the Sc1erotiniaeeae, a family

of stromatic inopereulate Diseomyeetes. Myeologia 37:648-714,1945. Wolf, Frederick A., and Frederick T. Wolf. The Fungi. Vois. I, 11. John Wiley & Sons,

Inc., New York, 1947. Zaumeyer, W. J., and H. Rex Thomas. Bean Diseases and Their Control. US. Dept.

of Agr. Farmers' Bul. 1692, 1958. Zundel, George L. The Ustilaginales of the World. Dept. Botany, Penn State College

Contrib. 176, 1953.

Let me repeat that the references cited are a mere sampling of the vast amount of material published on plant diseases. Most plant pathologists will have access to the Plant Disease Reporter, Plant Disease, Phytopathol­ogy, Review of Applied Mycology, Mycologia, Biological Abstracts, Journal of Economic Entomology, Agricultural Chemicals, NAC News, Arborists' News, Proceedings of the International Shade Tree Conference, and other technical publications. Gardeners will find information on plant diseases in the pub­lications of single plant societies, such as the American Camellia Society and the American Rose Society. State agricultural experiment stations have a wealth of material. Govemment publications are available from the Su­perintendent of Documents, U.S. Govemment Printing Office, Washington, DC20402.

Index

This is a selective index. It inc1udes common and Latin names of the host plants in Chapter 4, common names of the diseases described in Chapter 3, and Latin names of their pathogens. Entries under plant names are chiefly for providing cross references to disease names, and are not to be construed as providing a complete checklist of the diseases of each plant. For that, the host section itself must suffice. Orders and families given in Chapter 2 are indexed, as are genera described in Chapter 3. Chemicals used in Chapter 1 are indexed, but not their use in control of specific diseases. Italic type indicates illustrations.

Aatera,11 Abelia, 534

latent tynovirus, 475 Abies, 669

shoot blight, 170 Abound,5 Abronia, 838 Abutilon, 534

anthracnose, 70 cercospora althaeina, 244 infectious variegation, 475 mosaic bigeminivirus, 475 puccinia heterospora, 435 seedling blight, 70

Acacia,535 farnesiana, 713 twig canker, 195 white mottle rot, 370 wound rot, 403

Acalypha, 535 downy mildew, 223

Acanthopanax, 536 Acanthorhynchus vaccinii,

348 Acer, 747

negundo, 581 Acetovorax avenae subsp.

citrulli, 92 Achillea, 905 Achlys,889 Achras, 839 Achrotelium lucumae, 413 Acicop,9 Acid scab, beet, 448 Acidan, 10 Acidazirn, 7 Acidity, excess, 324 Acidovorax

avenae,89,90 cattleyae, 90

Aconite, 759 Aconitum, 759

Acorus, 869 Acquinite, 8 Acremonium,348

dispyri, 518 Acrobat,10 Acroconidiella escholtziae,

262 Acropetal necrosis, potato,

504 Acrospermaceae,44 Actaea, 566 Actidione, 9 Actinidia, 725 Actinomyces

ipomoea, 407 scabies, 448

Actinopelte dryina, 238 Actinothyrium

gloeosporiodes, 238 Actispray, 9 Acylalanine,5, 13 Adams-needle, 906 Adders tongue, 660, 663 Adelopus

gaumannii, 294 needle cast, 294

Adenium obesum, 643 Adiantum, 665 Adoxa, 536, 764 Adzuki bean, 568

stern rot, 90 Aecidium

avocense, 413 conspersum, 414 rubromaculans, 414 yuccae,yucca,433

Aegopodium, 536 Aerosol

applicators for, 22 bombs,25 pressurized spray, 23

Aeschynanthus, 737

Aeschynomere, 536 Aesculus, 710 Aesehynanthus, 536 African daisy, 536

crown necrosis, 405 African-lily, 537 African violet, 537

Carolina spiral nematode, 321

leaf rot, 124 rot, 400 stern rot, 124

Afugan,17 Agapanthus, 537 Agaricaceae, 50 Agaricales, 50 Agastache, 537 Agave,607 Ageratum, 538

puccinia conoc1inii, 434 Aglaonema, 613 Agri-Mycin 17, 21 Agri-Strep, 21 Agricultural experiment

stations, D.S., 909-910 Agrifos,17 Agrimonia, 538 Agrimony, 538

downy mildew, 222 leaf spot, 276

Agritol,20 Agro-Captun, 7 Agrobacterium

radiobacter (strain 84), 20 rhizogenes, 78 rubi,78 tumefaciens, Color Plate

4C, 78 Agrolite, 13 Agrostemma, 629 Ailanthus, 538

black mildew, 111

934 • Index

Ailanthus (cant.) twig blight, 142 twig canker, 195 wound rot, 403

Air blast machines, 23 Air pollution, 324 Airone,17 Ajuga,586 Akzo Cheie Maneb, 15 Alamo,17 Alaska cedar

crossonema, 306 nematode, 321

Albino cherry, 485 Albizzia

julibrissin, 756 lebbek,730

Albuginaceae, 39 Albugo

bliti,516 candida, 516 ipomoeae-panduratae, 517 occidentalis, 517 platensis, 517 portulacae, 517 tragopogonis, 517

Albutilon yellows closterovirus, 476

Aldecarb,21 Alder, 539

canker, 190, 210 catkin hypertrophy, 234 microsphaera penicillata,

341 powdery mildew, 338 sooty mold, 468 white mottle rot, 370

Aletris, 861 Aleurites, 885 Aleurodiscus

amorphus, 178 oakesii,178

Aleuyrodiscus, acerina, 178 Alfalfa

brown root rot, 156 Cobb's meadow

nematode, 318 Columbia root-knot

nematode, 315 dodder, 218 downy mildew, 222 mosaie, 476, 503 stem rot, 405

Alfamovirus,58 Algaecide, 9 Aliette,13 Alkali injury, 326 Alkalinity,326 Alkanet, 544

Alkyl bromide, 16 All-purpose sprays, dusts,

29 Allamanda, 539 Alliage,14 Alliaria, 539 Alligatorweed, stunting

closterovirus, 476 Allionia, 540 Allisan,10 Allium, 892

ascalonicum,844 cepa,774 sativum, 676 schoenoprasum, 615

Allspiee, 540 carolina, 595 rust, 438

Almond, 540 anthracnose, 67 blossom blight, 148 branch dieback, 204 brown rot, 148, 379 bud failure, 476 calico,476 colletotriehum, 67 flowering, 541 fruit rot, 388 green fruit rot, 405 podosphaera tridactyla,

344 pruning wound canker,

208 wound rot, 403

Alnus, 539 Aloe, 541 Alpakesa yuccifolia, 271 Alphacryptovirus, 58

avocado, 477 beet,480

Alpine fir bark canker, 203 needle rust, 414

Alstroemeria, 476, 541 mosaic potyvirus, 476

Altemanthera, 541 Altemaria

altemata, 118, 238 angustiovoidea, 239 brassieae, 239 brassicicola, 239 carrot,118 cassiae, 118 chrysanthemi, 239 citri,239 cucumber,118 cucumerina, 118 dauci,118 dianthicola, 118

fasciculata, 238 ginseng, 119 helianthi, 119 leucanthemi, 239 longipes, 239 panax, 119, 239 polypodii, 239 porri,173 raphani, 240 scorzonerae, 170 solani, 119 sonchi,240 tagetiea, 119, 240 tenuis, 238 tenuissima, 119, 240 tomato, 240 umbrella tree, 240 zinniae,119

Althaea, 706 Alto, 9 Alum-root, 703 Aluminum plant, 556

blight, 163 Aluminum toxicity, 326 Alyssum, 542

sweet, 869 Amaranth, spiny, 542 Amaranthus, 542 Amaryllis, 542

gray mold, 124 wild,543

Amazon-lily, 660 Ambrosia, 823 Ameriean bladdemut, twig

blight, 133 Ameriean dagger nematode,

com,323 American elm

phloem necrosis, 104 uncinula macrospora, 346

Ameriean gooseberry, mildew,345

Ameriean holly, 705 black spot, 110 chrysomyxa ilieina, 415 phacidium curtisii, 273

Ameriean hombeam, leaf curl,232

American ipecac, 680 Ameriean linden, uncinula

clintonii, 346 Ameriean spikenard, 553 Ameriean sycamore, 807 Amerosporium trichellum,

240 Amizol,13 Ammonium chloride, 5, 20 Ammonium compounds,

quartemary,17

Amobam,5 Amorpha, 543, 716 Ampelanus, 839 Ampelopsis, 544

aconitifolia, 759 arborea, 797 physopella ampelopsidis,

432 Amphiporthe

aculeans, 185 catanae, 185

Amphisphaeriaceae, 45 Amphobotrys ricini, 178, 349 Amsonia, 544 Anacardium, 602 Ananas, 805 Anaphalis, 544 Anchusa, 544 Andromeda, 544

Japanese, 802 mountain, 802

Andropogon, 580 Androsace, 829 Anemone, 545

crown rot, 124 didymaria didyma, 253 Japanese, 545 leaf gall, 231 plasmopara pygmaea, 223 stern smut, 460 tranzschelia

pruni-spinosae var. typica, 442

Anemonella, 834 Anethum, 646 Angelica, 545 Anguina

agrostis, 302 balsamophila, 302 graminis, 302 tritici, 302

Angular leaf spot cucurbits, 93 muskmeion, 92 strawberry, 99 watermeion, 92

Anilazine, 5 Anilide, 12, 13 Anilinopyrimidine, 10 Anise, 546

black mildew, 112 Anisogramma anomala, 179 Annato-tree, 576 Annellophora phoenicis, 240 Annona, 609 Annthyllis, 725 Anoda,546 Antennaria, 662 Anthemis, 596

Anthracnose, 66-78 abutilon, 70 almond,67 apple,77 ash,72 aspidistra, 70 azalea,71 badey,69 bean, 67, 70, 71 black gum, 67 blackberry, 66 Boston fern, 74 brambles, 66 butterfly-flower, 70 cactus,76 cereal, 69 Chinese cabbage, 69 dovers,71 cotton, 74 crabapple, 77 cucumber, 69 currant,77 daylilies, 70 dogwood,71 eggplant, 72 fern, 74 foxglove, 69 fruit, tomato, 71, 74 grape, 66, 469 hedera, 71 hickory, 75 hollyhock, 70 hosta,70 lawn grass, 69 lentil,71 lettuce,76 lima bean, 71 lime, 72 linden, 76 mallow,70 maple, 71, 72 melon,69 muskmeion, 69 mustard greens, 69 northwestern apple, 77 oak,72,73,73,76 oats,69 pansy,71 pea, 70 pear,77 pecan,472 peony,73 pepper, 72 potato,68 quince,77 radish,69 raspberry, 66, 72 rhubarb,68 rose, 472

Index - 935

rutabaga, 69 rye, 69 snapdragon, 68 snowberry, 474 sorghum, 69 soybean,68,71,74 spinach, 68, 71 spot, 67 stern, 71

bean, 71 clovers,71 lentil, 71 lima bean, 71 soybean,71

strawberry, 67, 68 sword fern, 74 sycamore, 75 tomato, 68, 71, 74 tulip,72 turnip,69 violet,71 walnut,75 watermelon, 69, 70 wheat,69 wild rice, 71

Anthriscus, 546 Anthurium, 546 Antibiotic, 19 Antidesma, 546 Antirrhinum, 848 Antracol, 17 Anvil,13 Apadodine, 11 Aphanomyces

cladogamus, 349 cochlioides, 349 eutheiches, 349 raphani, 350

Aphelandra, 547, 907 Aphelenchoides

besseyi, 303 parietinus, 304 ritzemabosi, Color Plate

6E,304 subtenuis, 304

Apicalleaf roll, potato, 106 Apiognomonia

errabunda, 72, 76 tiliae,76 veneta, 75

Apioporthe anomala, 179 apiospora, 179

Apios, 694 Apiosporina

collinsii, 110 morbosa, 106

Apium graveolens, 605 Apl-Luster, 18

936 • Index

Aplopsora nyssae, 414 Apocynum, 647 Apohelenchoides fragariae,

303 Aposphaeria

fuscomaculans, 208 Apostrasseria lunata, 355 Appendiculella

araliae, 111 calastroma, 111 perseae, 111

Apple, 547-550 anthracnose, 77 apple scab, Color Plate 6F aureobasidium pullulans,

227 bitter rot, 357, 372 black rot, 352, 391, 412 blight,83 blister spot, 94 bole canker, 188 botryotinia fuckeliana, 122 brown rot, 379 calyx-end rot, 405 canker, 196, 198,200,202,

203,204,208,213 cedar-apple rust, Color

Plate 2C chlorotic leaf spot

trichovirus, 476 coniothyrium pyrina, 250 core rot, 388 dapple, 476 dieback, 213 felt fungus, 210 fire blight, 83 fisheye fruit rot, 359 fly speck, 227 fruit rot, 355 fruit russet, 227 green mottle, 476 grooving capillovirus, 476 hairy root, 78 hymenochaete canker, 197 illosporium malifoliorum,

262 limb light, 133 mosaic ilavirus, 476, 514 northwestem,

anthracnose, 77 pome fruit spot

anthracnose, 472 powdery mildew, 343 root rot, 352, 367 rot, 92 scab, 451, 479 scab fungus, 446 soft rot, 384 sooty blotch, 174

stem, grooving capillovirus, 476

stem-pitting, 476 storage rot, 386 tesselate stylet nematode,

322 trunk canker, 208 twig canker, 195 white root rot, 359 wood rot, 375

Apple-of-Peru, 550 Application of chemicals,

22-31 spraying,22

Applicators for pressurize sprays,22

Apricot, 550 blossom blight, 148 blumeriella jaapü, 249 brown rot, 148, 379 cytosporina dieback, 194 dieback, 213 green fruit rot, 405 gummosis, 476 mycosphaerella cerasella,

245 phyllosticta circumscissa,

275 ring pox, 477

Apron,15 ApronXL,15 Aquathanatephorus

pendulus, 165 Aquilegia, 626 Arabian-tea, 604 Arabidopsis, 552 Arabis virus, 477, 552

lilac, 477 Arachis, 789 Aralia, 552, 553

cordata, 553, 888 five-Ieaf, 536 hispida, 429, 553 nudicaulis, 553 racemosa,553 sarsaparilla, 553 scab,473 spinosa, 552, 702

Arasan, 18 Araucaria, 553

branch blight, 134 Arborvitae

blight, 130 leaf blight, 138

Arbotect, 18 Arbovitae, 553

twig blight, 124 Arbutus menziesü, 251, 254,

743

canker, 196 Arbutusunedo,866 Arceuthobium

Americanum, 291 campylopodum, 291 cyanocrpum, 291 doulgasü,291 laricis, 291 occidentale, 291 pusillum, 291 tsugense, 291 vaginatum,291

Arctostaphylos, 747 dolichodorus obtusus, 308 uva-ursi, 571

Arctotheca calendula, 598 Arctotis, 536, 554 Arctous, 576 Ardisia, 554 Areca, 779

leaf spot, 260 phaeotrichoconis

crotolariae, 274 Arecastrum, 780 Arenaria, 839 Arenga, 781 Argemone, 817 Argugula, white rust, 516 Argyreia, 554 Arisaema, 720 Aristastoma oeconomicum,

241 Aristolochia, 651 Arizona cypress,

gymnosporangium cunninghamianum, 423

Arizona purple top, wilt, 106

Armeria, 554 Armicarb,17 Armillaria

mellea,350,455,532 root rot, 350 tabescens, 356

Armoracia, 711 Arnica,555 Aronia,615 Arrow-arum, 555

pestalotia aquatica, 272 Arrowhead, 555 Arrowleaf, 644 Arrowroot, 555 Arsenicl injury, 326 Artemisia, 555, 836

nematostoma occidentalis, 271

puccinia tanaceti var. dracunculina, 435

Arthuriomyces peckianus, 422

Artichoke curly drawf potex virus,

477 globe,556 Jerusalem, 556 potyvirus, 477

Artillery plant, 556 blight, 163

Artocarpus, 557 Arugula, 557 Aruncus, 683 Arundo,557 Asarum,680 Aschochyta brachypodii, 241 Asc1epias, 587 Asc1epiodora, 238 Ascocalyx abietina, 209 Ascochyta

abelmoschi, 241 althaeina, 241 armoraciae, 241 aspidistrae, 241 asteris, 241 boltschauseri, 241 cheiranthi, 241 chrysanthemi,120 c1ematidina, 241 compositarum, 241 cornicola, 241 fabae f. spo. spiricia, 120 juglandis, 241 phaseolorum, 242 piniperda, 120 pisi,120 ray blight, 120

Ascochyuta, lycopersici, 241 Ascocorticiaceae, 46 Ascomycetes,39 Ascomycota,41 Ascospora ruborum, 179 Ascyrum, 836 Ash,557

anthracnose, 72 black mildew, 111 branch canker, 194 canker, 189, 192 dec1ine of, 106 dieback, 192 marssonina fraxini, 266 moraine, 558 mycosphaerella effigurata,

269 mycosphaerella

fraxinicola, 269 ring spot, 477 rust, 439 white mottled rot, 365

witches broom, 103,477 wood rot, 362

Ashy stem blight, 148, 168, 377

Asiatic chestnut, canker, 185 Asimina, 785 Asochyta asparagina, 120 Asparagus, 558, 559, 560,

571 asparagoides, 559 fusarium wilt, 523 ilavirus, 477 nematodes, 302 officinalis, 558 plumosus, 559 potyvirus, 477 root rot, 369 rust, 433 sprengeri, 559 virgatus, 560 wilt,523

Asparagus fern, 559, 560 stem blight, 120

Aspen, 812 canker, 193 sooty-bark canker, 181 white rot, 360

Aspergillus alliaceus, 352 fumigatus, 352 niger, 352

Aspermy chrysanthemum, 487 tomato,512

Asphyxiation, overwatered plants, 333

Aspidistra, 560 anthracnose, 70 ascochyta aspidistrae, 241 leaf blight, 146

Asplenium, 664 Aspor,19 Aster, 560, 561

ascochyta compositarum, 241

California, 103 China, 560 chlorotic stunt carlavirus,

477 downy mildew, 219 golden, 618 puccinia extensicola, 435 ring spot, 477 tar spot, 278 white-topped, 843 wilt, 523 yellows, mycoplasma,

Color Plate 3B Asteridiella manca, 111

Index. 937

Asteridium lepidigenum, 110

Asterina anomala,110 delitescens, 110 diplopoides,110 gaultheriae, 110 lepidigena, 110 orbicularis, 110

Asterinella puiggarii, 110 Asteroid spot, peach, 501 Asterom gearretianum, 242 Asteroma

inconspicuum, 257 solidaginis, 242 tenerrimum, 242

Asteromella brassicae, 268 lupini,242

Asterostomella saccardoi, 276

Astilbe, 561 Astragalus, 561 Astragulus, rust, 443 Atamasco-lily, 907 Atemi,9 Athelia rolfsii, 153 Athyrium, 665 Atlas cedar, 605 Atriplex, 838 Atropellis

apiculata, 179 arizonica, 179 pinicola, 179 piniphila, 179 tingens, 179

Aubrietta, 561 Aucuba,562

mosaic potexvirus, 504 pestalotia aucubae, 272 phyllosticta aucubae, 275

Aules,18 Aureobasidium pullulans,

227 Auriculariaceae, 49 Australian-pine, 603 Austrian pine

blight, 140 needle blight, 140

Autumn crocus, 562 leaf smut, 461

Avens, 679 Avicol,16 Avocado, 562

alphacryptovirus, 477 black mildew, 111 blotch,173 dothiorella rot, 352 root rot, 392

938 • Index

Avocado (cont.) scab,474 soft rot, 384 sun blotch viroid, 477 white root rot, 403

Award,16 Awl nematode, celery, 308 Azalea, 563

anthracnose, 71 blight, 129, 159 Christie's stubby root

nematode, 322 colletotrichum, 71 flower spot, 150-152 leaf gall, 228, 229 red leaf gall, 232 rotylenchus robustus, 321 septoria, 236 stern blight, 159, 171 tar spot, 267 tichodorus primitivus, 322

Azara, 564 Azoxystrobin, 5

Babiana, 564 Baby blue-eyes, 767 Babys-breath, 695 Baby's breath, wilt, 527 Baccharis, puccinia

melampodii, 438 Bachelors-button, 607 Bacilliform badnavirus,

sugarcane, 510 Bacillus subtilis, 5 Bacillus thuringiensis, 20 Bacseal,6 Bacteria, 52-55 Bacterial black spot,

chrysanthemum, lOS Bacterial blight, 98

bean,101 bird's-nest fern, 90 butterfly weed, 98 carrot,98 celery,91 chrysanthemum, 87 garden stocks, 100 gladiolus, 99 mulberry, 94 pea, 95 poppy,l01 shallot,95 soybean,93

Bacterial canker stone fruit, 94 tomato,79

Bacterial disease, 78-106 Bacterial gall, oleander, 95 Bacterialleaf rot

dieffenbachia, Color Plale 4A

phildendron, Color Plate 4B

Bacterialleaf scorch, maple, 102

Bacterialleaf spot barberry, 90 basil, 91, 96 cabbage, 91,98 cauliflower, 91 celery,93 Chinese cabbage, 91 compass plant, 96 crucifers, 91 English ivy, 100 geranium, 91 hibiscus, 93 hibisucs, 91 magnolia, 91 marigold, 96 primrose, 92 radish,98 rhododendron, 91 sesame,92 sunflower, 93 sweet corn, 90 turnip,91 viburnum,96

Bacterial pustule, soybean, 99

Bacterial ring rot, potato, 79 Bacterial rot

chicory,91 potato,91

Bacterial speck, tomato, 96 Bacterial spot

beets, 93 blight, carnation, 96 carnation, 96 cereal,89 cereals,89 corn,89 grass,89 pepper, 102 pumpkin,99 stone fruits, 102 winter squash, 99

Bacterial stripe corn,89 sorghum, 89

Bacterial wilt bean,82 carnation,90 cocurbits, 88 corn,88 cucumber, 88 kidney bean, 82 lettuce, 102

lima bean, 82 muskmeion, 88 pumpkin,88 Southern,92 soybean,82 squash,88 Toronto creeping

bentgrass, 82 Bactericides, 20-21

defined,l Bacteriosis, begonia, 97 Bacticin, 20 Badnavirus, 58 Baeodromus californicus,

414 eupatorii,414

Balansia cyperi, 120 Bald cypress, 564 Baldhead, mechanical injury,

threshing, 326 Baldwin spot, 326 Balloon-flower, 808 Balm, 565 Balsam, 565, 715

bark canker, 203 canker, 190, 209 fir canker, 178 fir-willow rust, 427 milesina fructuosa, 429 milesina marginalis, 429 milesina pycnograndis,

429 needle blight, 155 needle cast, 294, 297 nematode, 302 tip blight, 164 uredinopsis osmundae,

442 uredinopsis

phegopteridis, 443 uredinopsis

struthiopteridis, 443 Balsam-apple, 565 Balsam-pear, 565 Balsamorhiza, 565 Bamboo,565

black mildew, 113 rust, 443

Bambusa, 565 Banana

dwarf,566 fusarium wilt, 524 pratylenchus musicola,

318 West African spiral

nematode, 321 wilt, 524

Banana shrub, 566 Baneberry, 566

Banner, 17 Banner Maxx, 17 Banol, 17 Banrot,18 Baptisia, 566 Barbarea, 902 Barberry, 566

cumminsiella rnirabilissima, 421

cumminsiella texana, 420 leaf spot, 90

Bardac,17 Bardos, 10 Barkeanker

alpine fir, 203 balsam, 203 balsam fir, 203 cypress, 184 Douglas fir, 182 hornbeam, 204 maple, 191 redwood, 191

Barkpatch maple, 178 oak, 178

Bark splitting, cherry, 485 Barley

anthracnose, 69 covered smut, 461 nigra loose smut, 463 yellow dwarf luteovirus,

477 Barnyardgrass, 652 Barqua, 20 Barquat, 17, 20 Barrel cactus, 591 Barren-strawberry, 567 Basal canker

euonymus, 209 maple, 208

Basal rot iris, 367 lily,368 narcissus, 368 oleander, 354 onion, 367 tulip, 367

Basfungin, 16 Basidiomycetes, 39, 49 Basidiomycota, 47 Basidiophora entospora, 219 BasiI, 567

leaf spot, 91, 96 pyracantha, 522 root rot, 393 wilt, 522

Basil-weed, 623 Basket-grass, 775 Basket-willow, 777

Basketflower, 607 Basswood, 735 Bauhinia,567 Bavistin,7 Bayberry, 568

yellows, 478 Baycor,6 Baycoral, 6 Bayfidan, 18 Bayleton, 18 Baymat,6 Baynol,18 Bean

adzuki,568 anthracnose, 67, 70, 71 ascochyta boltschauseri,

241 asparagus, 571 awl nematode, 308 bacterial blight, 101 bacterial wilt, 82 blight web, 66 cercospora zebrina, 248 comovirus, 479 cotton root-knot

nematode, 316 dry root rot, 369 halo blight, 95 hope cyst nematode, 311 hyacinth, 649 kidney, 568 lima, 568 luteovirus, 479 mosaic potyvirus, 478 mosaic virus, 478 mung, 570 phaeoisariopsis griseda,

263 root rot, 399 rust, 443 scarlet runner, 570 southern mosaic

sobemovirus, 479 stem anthracnose, 71 stem rot, 90 tepary, 570 urd,571 velvet, 889 web blight, 66 wild,866 winged,902 yellow mosaic potyvirus,

479 yellow stipple, 480

Bearberry, 571 black,576 black mildew, 110 chrysomyxa aretostaphyli,

415

Index - 939

shoot hypertrophy, 228 Beard-tongue, 794 Beauty-berry, 594 Beauty-bush,571 Bedstraw, 675 Bee-balm, 758 Beech,571

bleeding canker, 206 feit fungus, 210 sooty mold, 468 white mottle rot, 370 white mottled rot, 365 wood rot, 362

Beet, 572 acid scab, 448 alphacryptovirus, 480 aphaomyces cochlioides,

349 bacterial spot, 93 boron deficiency, 328 cercospora beticola, 245 curly top

hydrigeminivirus, 480 cuscuta Americana, 217 distortion mosaic virus,

481 downy mildew, 222 hemicycliophora obtusa,

310 latent virus, 481 luteovirus, 481 mosaic potyvirus, 481 needle blight, 165 phoma rot, 387 pseudo-yellows

closterovirus, 481 ring mottle, 481 rust, 443 savoy, 481 western yellows

luteovirus, 481 wound rot, 352 yellow net lutceovirus,

481 yellows closterovirus, 481

Begonia, 573 bacteriosis, 97 rnildew, 342 powdery rnildew, Color

Plate 5D Beincasa, 614 Belamcanda, 577 Belgium endive, bacterial

rot, 91 Bellflower, 596 Bellis perennis, 657 Bells-of-Ireland,574

myrothecium, 380 Bellwort, 888

940 • Index

Belonolaimus gracilis, 304 longicaudatus, 305

Beltanol-L,14 Benalaxyl, 5 Benex,5 Beniowskia sphaeroidea, 121 Benlate,5 Benomyl,5 Benor,5 Bentgrass

bacterial wilt, 82 drechslera erythrospilum,

260 fescue,369 grayleafmold,260 helrninthosporium

sativum, 260 leaf fleck, 266 leaf spot, 283, 285 ovularia pulchella, 272 pink snowmold, 464 tilletia pallida, 460 Toronto, bacterial wilt, 82

Benzalkonium chloride, 20 Benzimidazole,5, 15, 18 Berberis, 566 Berchemia, 825 Beret,12 Bermuda grass

blight,370 Cobb's stubby root

nematode, 322 downy mildew, 225 large brown patch rot, 383 leaf blotch, 260 puccinia cynodontis, 434 stunting disease, 82

Beta vulgaris, 572, 874 Betacryptovirus, 58 Betony,860 Betula,575 Bidens,574

mottle,481 mottle potyvirus, 481

Bifusella abietis, 294 faullii, 294 linearis, 295 saccata, 295

Big bud, tomato, 512 Big vein, lettuce, 497 Bigeminivirus, 58 Bignonia,574

black mildew, 111, 113 Bilberry, 900 Binapacryl, 6 Bioguard, 18 Bioquin 1, 9

Biorational, 5, 7, 19 Biozalil, 14 Biozate,9 Bipolaris

cactivora, 373 cynodontis, 260 iridis,149 setariae, 260 sorohiniana, 260 sorokiniana, 260

Birch,575 bleeding canker, 206 brown leaf spot, 252 heart rot, 376, 397 hymenochaete canker, 197 leaf rust, 429 red leaf blister, 233 stereum fasciaturn, 407 white mottled rot, 365,

370,397 wood rot, 407 wound rot, 403 yellow leaf blister, 234

Bird-of-paradise, 575, 643 blight,135 root rot, 370 seed rot, 370

Bird's nest fern, 664 leaf blight, 90, 91 leaf spot, 91

Bird's nest fungus, turf, 225 Birdsfoot, 882

root rot, 380 uromyces, 444

Bischofia, 575 Biscogniauxia marginata,

203 Biscuit-root, 738 Bishops-cap,576 Bishop's weed, 536 Bitertanol, 6 Bitter pit, 326 Bitter rot

apple, 357, 372 cranberry,372 grape,371 grapes,377

Bitterbush, 708 Bitterroot, 732 Bittersweet, 576 Bixa,576 Black ash, white spongy

heart rot, 397 Black bearberry, 576 Black bread mold, 402 Black canker

cherry,485 willow,206

Black cherry

blumeriella jaapii, 249 canker,190 twig canker, 191

Black cohosh, 618 Black crown rot, celery, 354 Black dot disease, potato, 68 Black end, 326 Black-eyed susan, 833 Black gum, 886

anthracnose, 67 colletotrichum, 67

Black heart, 327 Black knot, 106-108, 107

goldenrod, 107 plum,106

Black leaf, peas, 256 Black leaf speck, geranium,

287 Black leaf spot

crucifers, 239 magnolia, 267 poplar,248

Black locust canker,191 seedling leaf blight, 257

Black loose smut, oats, 461 Black medic, 752

oidium,342 Black mildew, 109-113

ailanthus, 111 anise-trees, 112 ash,l11 avocado, 111 bamboo,113 bearberry, 110 bignonia, 111, 113 blueberry, 113 boxeIder, 111, 113 cactus, 112 California-Iaurel, 110 callicarpa, 113 camellia, 113 chinaberry; 112 gordonia, 113 holly,112 lippia,113 lowland white fir, 111 lyonia,110 magnolia, 111, 113 Pacific silver fir, 111 palmetto, 113 redbay, 112, 113 Rocky Mountain juniper,

111 sea-grape, 112 wax-myrtle, 111

Black mold, rose grafts, 292 Black oak, lembosina

quercina, 268

Black patch, goldenrod, 107 Black pod spot, cowpea, 157 Black raspberry

cane gall, 78 downy mildew, 222

Black ring nepovirus, tomato, 512

Black ring spot, cabbage, 482 Black root, 327

radish,350 strawberry, 318

Black rot apple, 352, 391, 412 bulbous iris, 405 cranberry, 355 crucifers, 97 grape,459 grapes,372 hoary-tick clover, 361 java, 363 sweetpotato, 355 tobacco, 408

Black sage, 835 Black salsify, 838 Black scale rot, Easter lily,

357 Black scorch, coconut, 234 Black scurf

goldenrod, 242 potato,401 potatoes, 133, 383

Black seed rot, kidney bean, 287

Black sigatoka, dwarf banana, 149

Black spot, 113-117 American holly, 110 Christmas rose, 250 delphinium, 93 erythronium, 242 eugenia, 110 goldenrod, 242,278 holly, 267 leucothoe, 110 opuntia cacti, 255 primrose, 242 raspberry, 287 redbay,110 rose, Color Plate 6D, 112,

113,114-117,266 Black stern rot, purslane, 362 Black stern spot, cranberry,

270 Black walnut

canker, 170 mycosphaerella juglandis,

269 Black walnut oak, stern

canker, 195

Black wart, potato, 231 Blackbead, 806 Blackberry, 576

anthracnose, 66 bramble anthracnose, 473 cane blight, 143 cane gall, 78 canker, 180 downy mildew, 222 dwarf, 481 leaf spot, 285 mosaic,481 orange rust, 422, 427 pezizella oenotherae, 273 root rot, 393 sooty blotch, 174 variegation, 481

Blackberry-lily, 577 Blackeye cowpea, mosaic,

481 Blackfire, tobacco, 90, 96 Blackleg, 108-109

canola,109 crucifers, 108 delphinium, 86 grape,108 potato,86

Bladder fern, 664 Bladder senna, 577

diplodia coluteae, 139 Bladdernut, 860

twig blight, 145 Blas-T,19 Blastocladiales, 36 Blazing star, 754 Bleeding canker, pine, 210 Bleeding heart, 578

cerotelium dicentrae, 415 vine, 578

Blephilia Bletilla Blight, 117-173, 160

abies, 170 abutilon, 70 ailanthus,l42 ailanthusedit, 142 almond,148 alurninum, 163 American bladdernut, 133 apple,83 apricot, 148 araucaria, 134 arbovitae, 124, 130, 138 artillery plant, 163 ascochyta, 120 ashy, 148, 168, 377 asparagus fern, 120 aspidistra, 146 Austrian pine, 140

Index. 941

azalea, 129, 159, 171 bacterial, bird' s-nest fern,

90 balsam fir, 155, 164 bean,66,95,101 beet, 165 bermuda grass, 370 bird-of-paradise, 135 bird's nest fern, 90, 91 black locust, 257 blackberry, 143 bladdernut, 145 blue-eyed grass, 146 blueberry, 137, 157 Boston fern, 74 bougainvillea, 163 boxwood, 156, 172 buffelgrass, 164 bulbous iris, 149 butterfly weed, 98 calendula, 124 calla, 159 camellia, 124,155,166 carnation, 96, 118 carrot, 98, 118, 130 cassia,118 castor bean, 122 celery, 91, 130, 168 centipede grass, 370 centipedegrass, 149 cherry, 144, 148 chestnut, 140 chickpea, 149 China aster, 146 Chinese elm, 157 Chinese evergreen, 142,

369 chrysanthemum,87,120,

125,146 citrus, 163, 172 clematis, 156 clover, 152 Colorado blue spruce,

157 conidial production, 122 conifer, 144, 154, 155 corn, 143 coryneum, 133 crape-myrtle, 157 creeping bentgrass, 143,

164 cryptomeria, 157 cucumber, 118, 149 cucurbit, 118 currant, 121 cyclamen, 142 cylindrocladium, 135 dahlia, 125 dewberry, 147

942 • Index

Blight (cant.) dogwood, 125, 132, 134,

150, 163 dracaena, 158 eastern red cedar, 198 eclipta, 168 eggplant, 137, 157 erythroniurn, 132 eupatorium, 125 fenne!, 131 fern, 157 fig,152 filbert,98 fir, 136, 144, 157 fire

apple,83 pear,83 quince,83

garden stocks, 100 geraniurn, Color Plate Sc,

125 giant sequoia, 126 ginseng, 119 gladiolus, 99, 127, 135 golden caHa, 159 grape, 168 grass, 93, 149,152,154,168 hackberry, 136 halo

bean,95 grass, 93

hard pine, 145,296 hawthorn, 141, 148 hemlock, 138, 166 hibiscus, 131, 163 hoHy, 159 hoHyhock, 70 hyacinth, 127 hydrilla, 164 itchgrass, 135 jack-in-the-pulpit, 128 Japanese honeysuckle, 156 jasmine, 131 juniper, 156 kerria, 144, 156 lalviscus, 168 larch,145 larkspur, 137 lettuce,91 leucospermurn, 129 leucothoe axillaris, 136 lilac, 144, 158,163, 168 lily, 126 lima bean, 137, 152 linden, 130 loblolly pine, 140, 142 lupine, 143, 165 mallow,70 maple, 132, 156

marigold, 119 May-apple, 169 mesquite, 166 mountain-Iaurel, 157 mulberry, 94, 150 muskmeion, 149 nectarine, 379 Norway spruce, 156 oak,l34, 140, 192 onion,l71 oriental arborvitae, 133 osage-orange, 170 oxydendron, 170 papaya, 132 pea, 95, 118, 149 peach, 133, 148 peanut, 168 pear, 83, 141, 156 peony, Color Plate SB, 125,

127 pepper, 158 persimmon, 156 phlox, 164 picea, 170 pine, 125, 129,150, 170 pink calla, 159 pinus, 170 pistachio, 125, 168 plurn, 148 poinsettia, 125 poplar, 139, 147 poppy,l01 potato, Color Plate Sc, 119,

159-163,160,161 prune, 148 pumpkin, 131,142, 149 quince,83 raspberry, 139, 147 red pine, 140 redwood, 126, 149 rhododendron, 125,129 rose, 125, 158 salsify, 170 sequoia, 126 shallot,95 silky thread, 165 slash pine, 140, 142 snap bean, 152 snowdrop, 126 sourwood,170 southern, 168 soybean,93,137,168 Spanish moss, 142 spinach, 508 spruce, 120 squash, 131, 142,149 stock,100 strawberry, 132, 136, 157 summer squash, 149

sunflower, 119, 156 sweet cherry, 148 sweet pea, 125 sword fern, 74 tomato, 119, 159-163, 160,

164,514 trurnpetvine,131 tsuga, 170 tulip, 123 tung,152 turf, B, Color Plate 6A,

Color Plate 6A, 6B, 147,149,155

vetch,120 viburnum, 148 vinca, 132 walnut,100 watermelon, 149 West Indian holly, 163 western larch, 200 wild rice, 142, 168 yew, 157, 170 yucca, 146 zinnia, 119, 125

Blind seed rot, grass, 371 Blindness, tulip, 327 Blister, white, 516 Blister canker, osier, 185 Blister rust

pinon, 418 white pine, 190

Blister smut, bluegrass, 457

Blister spot, apple, 94 Blood-Ieaf, 717 Bloodroot, 578

leaf spot, 276 Blossom blight

almond,148 apricot, 148 cherry, 148 geranium, 125 hibiscus, 131 jasmine, 131 nectarine, 379 plurn,148 prune, 148 squash,131 strawberry, 132 sweet pea, 125

Blossom-end rot, 327, 401 Blotch diseases, 173-177 Blue cohosh, 579 Blue curls, 579 Blue dwarf marafivirus, oat,

499 Blue-eyed grass, 579

leaf blight, 146 Blue-eyed Mary, 625

Blue grass, purple leaf blotch,177

Blue laceflower, 580 wilt, 527

Blue-lips, 625 Blue lobelia, 737 Blue mist-flower, 661 Blue mold, 384

apple, 384 pear, 384 tobacco, 222

Blue sage, 835 Blue spruce, needle cast, 299 Blue toadflax, 735 Bluebell, 755

Texas, 662 Blueberry, 578

alternaria tenuissima, 240 black mildew, 113 cane canker, 205 canker,97 dothichiza caroliniana, 255 fruit rot, 388 godronia cassandrae f.

vaccinii, 372 laestadia asarifolia, 278 leaf mottle nepovirus, 481 leaf spot, 257 merlinius joctus, 321 necrotic ring spot, 481 necrotic shock ilavirus,

481 nocardia vaccinii, 230 red ring spot

caulimovirus, 481 ring spot, 481 scorch carlavirus, 481 shoestring sobemovirus,

482 stunt, 106, 482 twig blight, 137, 157

Bluegrass blister smut, 457 drechslera poae, 261 helicotylenchus dihystera,

309 leaf blotch, 282 leaf rust, 437 leaf spot, 285

Bluestem, 580 phyllosticta

andropogonivora, 275 Bluets,712 Blumeria graminis, 339 Blumeriella

jaapii,249 cherry-Iaurel, 249 plum,249

kerriae, 249

Boehmeria, 580 Boerhaavia, 854 Bog rosemary, 544

tar spot, 281 Bogard,10 Boisduvalia, 580 Bole canker, apple, 188 Boleosporium steviae, 414 Boletaceae, 50 Boltonia, 580

white smut, 456 Bombs, aerosol, 25 Boneset, 661 Borage, 580 Borago, 580 Borax, 6 Bordeaux injury, 327 Bordeaux Mix, 6, 13 Bordocop, 13 Born feIt blight, pine, 150 Boron deficiency, 327 Boron toxicity, 328 Boston fern, 664

anthracnose,74 desmella aneimiae, 420 tip blight, 74

Boston ivy, 718 California dagger

nematode, 324 leaf spot, Color Plate 4D,

4F,259 Botran,10 Botrilex, 16 Botryobasidium, 383 Botryodiplodia

gallae, 180, 194 theobrmoae, 352 theobromae, 180

Botryosphaeria corticis, 205 dothidea, 180, 352 obtusa, 158,180,352 obtuse, 206, 391 quercuum, 205 rhodina,206,352,392 ribis, 121, 180, 352 stevensii, 180, 391 vaccinii, 373

Botryotinia convoluta, 353 fuckeliana, 122 harcissicola, 404 polyblastis, 168 ricini,122

Botrytis aclada, 353 byssoidea, 353 cinerea, Color Plate SB, Sc,

124,180,353

Index - 943

douglasii, 126 elliptica, 126 fabae, 242 galanthina, 126 gladiolorum, 127, 353 hyacinth, 127 iris, 353 lily,126 magnolia, 123 neck rot, 353 paeoniae, 127 peony, 127 polyblastis, 128 snowdrop, 126 squamosa, 354 tulip, 123, 128

Bottle-brush, 581 cylindrocladium

clavatum, 252 cylindrocladium

colhounii, 252 Bottom rot, cabbage, 400 Bougainvillea, 163, 581 Bouquet disease, potato, 504 Bouvardia, 581 Bowstring-hemp, 839 Boxeider, 581

black mildew, 111, 113 wound rot, 403

Boxwood, 582 canker,201 dieback, 201 leaf blight, 172 leaf cast, 145 lesion nematode, 319 macrophoma candollei,

199,265 nectria canker, 208, 213 root rot, 383 spiral nematode, 321 sunscald, 335 tip blight, 156 twig canker, 195 Boysenberry, 581

Brachiaria, 583 Brachycome, 583 Brachypodium, 583 Brachysporium tomato, 354 Bracken, 664

cryptomycina pteridis, 251

Bradford pear, canker, 180 Bramble

anthracnose, 66, 473 cane gall, 78

Branch blight, araucaria, 134

Branch canker ash,194

944 • Index

Branch canker (cont.) Bromofume,20 Brown stern rot, soybean, eIder, 190 Bromovirus, 58 355 fir,191 spring beauty, 508 Brown stripe, lawn grass, oak, 194 Bromus,584 282

Branch dieback Bronocot, 20 Brown trunk rot, conifer, almond,204 Bronopol, 20 366 juniper, 192 Brooks fruit spot, 227 Brunfelsia, 585

Branch gaU canker, poplar, Broom,584 Brussels sprouts, 585, 588 199 Spanish, 584 Bubakia erythroxylonis, 414

Branch wilt, walnut, 526 Brooming, robinia, 507 Buchloe, 586 Branched broomrape Brooming disease, walnut, Bucket pump sprayer, 26

hemp, 177 515 Buckeye, 585, 710 tomato,l77 Broomrapes, 177-178 white mottled heart rot, tomatoes, 177 Broussonetia,584 397

Brasenia, 899 Browallia, 584 Buckeye rot, tomato, 392 Brassaia, actinophyUa, 841 Brown bark spot, 328 Buckskin, cherry, 104,485 Brassic, rapa, 886 Brown canker, rose, 185-188, Buckthom, 585 Brassica 186 Buckwheat-tree, 585

chinensis, 613 Brown crumbly rot, 366 pestalotia cliftoniae, 272 juncea, 765 Brown cubical rot Bud abortion, cherry, 486 napus, 598 conifer, 358 Bud drop, sweet pea, 328 oleracea, 588 dead timber, 361 Bud failure, almond, 476 pekinensis, 613 Brown feIt blight, conifer, Bud gaU, sweetleaf, 228

Brassicol, 16 144 Budrot Bravo, 8 Brown heart, 328 camation, 369 Bread mold, 291 sapwood, 395 palms, 386 Breadfruit, 557 Brown leaf blister, maple, sunfiower, 125

uredo artocarpi, 443 234 Buddleia, 585 Break,17 Brown leaf blotch, Buffaloberry, 586 Breaking potyvirus, tulip, wheatgrass, 176,283 sphaerotheca catagnei,

514 Brown leaf spot, birch, 252 344 Brernia lactucae, 219 Brown necrotic streak, Buffalograss, 586 Brestan,19 orchid,5oo bunt,459 Brestanid, 19 Brown patch, lawn grass, 66 Buffelgrass, 607 Brickellia, 583 Brown pocket rot leaf blight, 164 Brickle-bush, 583 dead sapwood, 376 Bugbane, 618 Bridal veil, Tahitian, 875 fir,406 false,882 Brifur,21 heartwood, 366 Buginvillaea, 581 Briosia azaleae, 129 subalpine fir, 373 Buglewood, 586 Bristlegrass, 583 Brownrot Buglos, 544

knotroot, 121, 726 alfalfa, 156 Bulbrot Broad bean almond,l48 onion, 367

chlorosis closterovirus, apricot, 148 vidalia sweet onion, 354 482 cherry, Color Plate 8E, 148 Bulbous iris, 717

wilt fabavirus, 482 citrus, 395 black rot, 405 Broad ring spot, tobacco, coniferous wood, 398 ink spot, 149

511 lodgepole pine, 386 leaf blight, 149 Broadiaea, 583 nectarine, 379 Bumelia, 586 Broadleaf signalgrass, 583 plum, 148,462 Bumper,17 Broccoli, 583, 588 prune, 148 Bunchberry, 647 Brom-O-Gas, 16 stone fruits, 378 Bunchflower, 586 Brom-O-Gaz, 16 Brownspot Bundleflower, 587 Brom-O-Sol, 16 celery, 243 Bunt, buffalograss, 459 Bromegrass com,277 Bupirimate, 7

mosaic,482 orchid,90 Bupleurum, 877 smooth,584 orchids,90 Bur-marigold,574

Bromelia, 584 soybean,284 downy rnildew, 223 leaf spot, 260 tobacco, 239 Burcop, 7

Bromoethane,16 wild rice, 95 Burgundy rnix, 7

Burkhaolderia, gladioli, 91 Burkholderia

andropogonis, 89 caryophylli, 90 cepacia, 7, 91

Bumet, 587, 839 Buming-bush, 661 Burrillia decipiens, 456 Burrowing nematode, 320 Bursaphelenchus

lignicolus, 305 xylophilus, 305

Busan 72A, 7 Bush honeysuckle, 646 Bush-mallow, 745 Bush-pea, 876 Bushy stunt tombusvirus,

tomato,513 Butlerelfia eustacei, 359 Butrytis tulipea, 354 Butt rot, spruce, 374 Butter and eggs, 735 Butter-bur, 798 Buttercup, 823 Butterfly-bush, 585 Butterfly-flower, 587

anthracnose, 70 Butterfly-pea, 587 Butterfly weed, 587

bacterial blight, 98 Butternut, canker, 170 Buttonbush, 588

cuscuta gronovii, 217 Butylamine, 18 Buxus, 582 Bymovirus, 58

Cabbage, 588 black leaf spot, 239 black ring spot, 482 bottom rot, 400 cercosporella brassicae,

248 Chinese, 69, 613 c1adosporium variabile,

262 cotton root-knot

nematode, 316 damping-off, 400 head rot, 395 leaf spot, 91, 98, 239 nacobbis betaiformis, 317 pepper spot, 91 plasmodiophora

brassicae, 214 powdery mildew, 339 ring necrosis, 482 ring spot, 268 root rot, 394

white rust, 516 wilt, 523

Cabbage cyst nematode, 310 Cabbage palm, 781 Caboriaba, 552 Cacopaurus pestis, 305 Cactus, 589, 591

anthracnose, 76 barrel,591 black mildew, 112 Christmas, 616 cladode rot, 363 cyst nematode, 310 Easter, 652 fishhook,590 giant, 85, 590 heart rot, 366 pincushion, 590 potexvirus, 482 prickly pear, 590 saguaro, 590 star, 591 stern rot, 373

Cad-Trete,18 Caddy,7 Cadminate, 7 Cadmium chloride, 7 Cadmium succinate, 7 Cadmium sulfate, 7 Caeoma faulliana, 414 Caeoma torreyae, 414 Caesalpinia, 591, 643, 810 Cajanus, 802 Caladium, 591

tuber rot, 369 Calathea,592,749 Calceolaria, 592 Calcium chloride injury; 328 Calcium deficiency, 328, 335 Calcium sulfide, 7 Calendula, 592

cercospora calendulae, 245 gray-mold blight, 124 puccinia flaveriae, 435 white smut, 456

Caliciopsis pinea, 181 Calico

almond,476 celery; 485 peach,501 potato, 504

California aster yellows, 103 California-bluebell, 592 Califomia buckeye, leaf

blister, 232 Califomia chinquapin, leaf

blister, 233 Califomia dagger nematode,

Boston ivy, 324

Index - 945

California fuchsia, 906 California-Iaurel, 593

black mildew, 110 paratylenchus anceps, 317

California mistletoe, phoradendron Californicum, 289

California pepper-tree, 593 California pitcher-plant, 593 California poppy, 593

stern spot, 262 California-rose, 594 California sessile nematode,

317 California sycamore, 807

leaf spot, 288 Calixin,19 Calla

cercospora richardiaecola, 247

common,594 golden, 594 leaf blight, 159 leaf spot, 276 palustris, 594 pink,594 root rot, 393 soft rot, 85 wild,594

Calliandra, 594 Callicarpa, 594

black mildew, 113 Callirhoe, 813 Callistemon, 581 Callistephus, 560 Calluna, 699 Calocedrus decurrens, 715 Calochortus, 750 Calonectria, 354

colhounii, 129,242 crotalariae, 243, 354, 361

Calonyction, 760 Caltha, 750 Calycanthus, 595 Calyx-end rot

apple,405 date, 352

Camass, 595 Camassia, 595 Camellia, 595

black mildew, 113 blight, 124 criconemoides

komabaensis, 306 flower blight, 155, 166 hemicriconemoides, 309 leaf gall, 228 leaf spot, 286 mottle varicosavirus, 482

946 • Index

Camellia (cont.) pestalotiopsis maculans,

272 phyllosticta camelliae, 275 scab,471

Camomile, 596 Camovirus,58 Campanula, 596 Camphor-tree, 597

canker, 192 scab,469

Campion, 741, 845 marssonina delastrei, 266

Campsis, 883 Camptosorus, 667 Canavalia, 720 Canavirgella banfieldii, 295 Candit,14 Candleberry, 899 Candlestick shrub, 597 Candlewood, 672, 772 Candytuft, 597 Caneblight

blackberry, 143 currant, 121 dewberry, 147 raspberry, 147 rose, 158

Canecanker blueberry, 205 rose, 125

Cane gall black raspberries, 78 blackberry, 78 brambles, 78 purple raspberries, 78 raspberry, 78

Cane-knot canker, currants, 212

Cane rust, 427 Cane spot

dewberry, 179 raspberry, 179

Canistel,740 scab,471

Canker, 178-214 alder, 190, 210 apple, 196, 198, 200, 202,

203,204,208,213 arbutus menziesii, 196 ash, 189, 192 Asiatic chestnut, 185 aspen, 193 balsam fir, 190, 209 black cherry, 190 black locust, 191 black walnut, 170 blueberry, 97 boxwood, 201

butternut, 170 camphor-tree, 192 carissa, 231 ceratocystis, 182 citrus, 98, 180 cowpea,102 Douglas fir, 190 English holly, 191 eucalyptus, 191 European black alder, 204 European larch, 190, 198 fir, 200, 201 gardenia, 204 hard pine, 179 hardwoods, 200,206 hazelnut, 179 holly, 195 honeylocust, 212 Italian prune, 190 Japanese maple, 182 juniper, 180 kiwifruit, 93 lodgepole pine, 179 London plane, 181, 194 maple, 211, 361 oak,180,184,192 painted spurge, 191 parsnip, 146 peach,180,213 pear, 204 pecan, 190 periwinkle, 205 pine,179,190,209,212 plane trees, 199 ponderosa pines, 179 poplar, 190 purslane, 192 raspberry, 209 rose, 180, 182, 183, 188,

196,212 Russian olive, 195,204,

212 southern pine, 194 stone fruit, 94 stone fruits, 94 sumac, 185 sunflower, 191 sycamore, 181 thornless blackberry, 180,

194,195,198 tomato,79 tung, 206 vinca, 205 walnut, 199 western yellow pine, 179 white fir, 204 willow, 185, 190,213

Canna, 597 badnavirus, 482

mosaic, 482 puccinia thaliae, 439

Cannabis, 701 Canola, 598

blackleg, 109 Cantaloupe, 753

corky dry rot, 369 cotton root-knot

nematode, 316 mosaic,494 postharvest decay, 364 root rot, 380

Canterbury bells, 596 Canvil,13 Caocobre,9 Caolnectria theae, 243 Cape-cowslip, 598 Cape dandelion, 598 Cape-honeysuckle, 598 Cape-jasmine, 675 Cape-marigold, 598 Caper,598

spurge,686,857 Caperonia, 876 Capeweed, 598 Caphalosporium apii, 243 Capillovirus, 58 Capnodiaceae, 44 Capnodium, 467

citri,467 elongatum, 467

Capparis, 598 Capsella, 845 Capsicum, 795 Capsul, 7 Capsule spot, California

poppy,262 Captaf,7 Captafol,7 Captan,7 Caragana, 792 Caraway, 599 Carbam,15 Carbamate, 7,9, 10, 12, 21,

22 Carbendazim, 7 Carbofuran, 21 Carbon disulfide, 7 Carboxamide, 16,20 Carboxin,8 Cardinal-flower, 737 Cardoon, 599 Carduss tenniflorus, rust,

434 Carduus, 846, 877 Carissa, 599

canker, 231 gall,231

Carlavirus, 58

carnation, 482 chrysanthemum, 488 elderberry, 494 Hellenium, 495 hop,496 hydrangea, 496 potato, 505 syrnptomless, lily, 497

Carmovirus cactus, 507 elderberry, 494 pelargonium, 503

Camation, 599 bacterial blight, 96 bacterial spot, 96 bacterial wilt, 90 bud rot, 369 carlavirus, 482 c1adosporium

echinulatum,248 collar blight, 118 criconemoides curvatum,

306 criconemoides xenoplax,

306 downy rnildew, 220 etched ring caulimovirus,

482 fairy ring spot, 262 fasciation, 82 flower rot, 124 fusarium wilt, 524 greasy blotch, 177 hoplolaimus coronatus,

313 Italian ring spot

caulimovirus, 482 mosaic, 482 mottle carmovirus, 483 necrotic fleck

c1osterovirus, 483 pimple, 101 pin nematode, 317 powdery mildew, 342 ring spot dianthovirus,

483 rust, 443 stern rot, 369 streak,483 ustilago violacea, 463 vein mottle potyvirus, 483 wilt, 524 yellows, 483

Camegiea, 590 Carob,600 Carolina allspiee, 595 Carolina moonseed, 601 Carolina spiral nematode,

African violet, 321

Carpene,l1 Carpinus, 710 Carpobrotus,714 Carrot, 601

altemaria blight, 118 bacterial blight, 98 cyst nematode, 310 downy mildew, 223 dry rot, 378 early blight, 130 motley dwarf, 483 mottle umbrarvirus, 483 powdery mildew, 339 red leaf luteovirus, 483 stern rot, 404 storage rot, 354, 470 wild,602

Carthamus, 835 Carum, 599 Carvenex,7 Carya, 704

illnoensis, 792 Caryota, 780 Cashew, 602 Cassabana, 602 Cassabra, 753 Cassandra, 608 Cassava, 746

mosaic potexvirus, 483 phakopsora jatrophicola,

430 Cassia, 597, 602

seedling blight, 118 Cassiope, 603 Castanea, 612 Castanopsis, 614 Castilleja, 778 Castor bean, 603

gray mold blight, 122 stern canker, 178

Casuarina, 603 Cat-tail, 604 Catalina cherry, 603 Catalpa, 603

phyllosticta catalpae, 275 sphaceloma spp. bignonia,

475 wound rot, 403

Catchfly, 845 Catenularia fuliginea, 354 Catface, 328 Catha, 604 Catkin hypertrophy, alder,

234 Catnip, 604 Cats-c1aw, 605, 806 Cattela orchids, wilt, 523 Cauliflower, 588

leaf spot, 91

Index. 947

mosaic caulimovirus, 483 ring spot, 268

Caulimovirus, 58 sweet potato, 510

Caulphyullurn, 579 Cavalier, 18 Ceanothus, 605 Cedar, 605, 608

atlas, 605 gall rust, 426 gyrnnosporangium

exterurn, 424 floriforme, 424 hyalinum, 424 libocedri, 425 trachysorum, 426

hawthom rust, 424 salt, 875 witches' broom rust, 426

Cedar-apple, rust, Color Plate 2C, 2D, 424, 475

Cedar of Lebanon, 605 Cela W 524, 19 Celandine, 605 Celastrus, 576 Celeriac, 605 Celery, 476, 605

awl nematode, 308 bacterial blight, 91 belonolaimus

longicaudatus, 305 black crown rot, 354 boron deficiency, 328 brown spot, 243 calico, 485 damping-off, 400 early blight, 130 late blight, 168 leaf spot, 93 longidorus maximus, 313 mosaic, 494 mosaic potyvirus, 485 petioles, 103 phoma root-rot, 387 pin nematode, 317 powdery mildew, 339 stern rot, 404 storage rot, 411 Tarjan's sheath nematode,

310 wilt, 523 yellow spot luteovirus,

485 Celest,12 Celfurne, 16 Celrnide, 20 Celosia argentia, 624 Celtis, 695 Celtuce, 606

948 • Index

Cenangium ferrugüoosum, 129 piniphilum, 179 süogulare, 181

Cenchrus, 607 Centaurea, 607

rust, 437 Centipede grass, 607

blight, 149, 370 Centranthus, 889 Centrifugal spreader, 26 Centrosema, 587 Centrospora acerüoa, 354 Century plant, 607

gray mold, 125 microspaeropsis

concentrica,250 Cephalanthus, 588 Cephaleuros virescens, 243 Cephalosporium

carpogenum,355 cinnamomeum,244 dieffenbachiae, 244 diospyri, 518 gregatum,355 wilt,522

Cephalotaxus, 608 Ceratocystis, 182

fagacearum, 518 fimbriata, 181,355 paradoxa, 234 ulmi,519-522

Ceratonia, 600 Ceratostomatoceae,45 Ceratostomella ulmi,

519-522 Cercidium, 781 Cercis, 825 Cercobüo, 18 Cercobüo M, 18 Cercocarpus, 763 Cercospora

abeliae,244 albelmoschi, 244 albo-maculans, 244 althaeüoa,244 angulate,244 apii,130 aquilegiae, 244 arachidicola,244 armoraciae, 244 beticola, 245 bougaüoviilleae, 245 brunkii,245 calendulae, 245 cannabüoa, 245 cannabis, 245 capsici, 245 circumscissa, 245

citrullina, 245 concors, 173,246 cornicola, 246 fusca, 245 halstedii, 175 kalanchoe, 248 lathyrüna, 246 lythracearum,246 magnoliae, 246 melongenae, 246 microsora, 130 nandüoae, 246 personata, 247 piaropi, 247 pittospori, 247 puderi,247 punicae, 176 purpurea, 173 resedae, 247 rhododendri, 247 richardiaecola, 247 rose,247 rosicola, 247 sequoiae, 130 smilacis, 247 sojüoa, 247 sordida, 131 symplocarpi,247 zebrüoa, 248

Cercosporella brassicae, 248 pastinaceae, 280

Cercosporidium bougaüovilleae, 245 graminis,282 magnoliae, 246 personata, 248 punctum, 131

Cereal anthracnose, 69 bacterial spot, 89 fusarium culmorum, 367 leaf rust, 438 powdery mildew, 339 sclerospora graminicola,

225 stern rot, 369 tylenchorhynchus dubius,

322 Cereus, 18, 589 Cerospora carotae, 130 Cerotelium

dicentrae, 415 fici,415

Cerrena unicolor, 361 Cestrum, 608 Ceuthospora lunata, 355 Cgaultheria procumbens,

902

Chaenomeles, 821 Chaerophyllum, 608 Chaetoderma luna, 386 Chaetomiaceae, 45 Chalara

quercüoa, 518 thielavioides, 292 thielaviopsis, 356

Chalaropsis thielavioides, 292 thielaviopsis, 356

Chamaecyparis, 608 thyoides, 423

Chamaedaphne, 608 red leaf gall, 232

Chamaedorea, 779 Chamber's dagger

nematode, strawberries, 324

Chamomile, false, 751 Char spot, lawn grass, 283 Charbon,66 Charcoal rot, 377, 401 Charcoal spot, opuntia cacti,

255 Chard, Swiss, 874 Chaste-tree, 895 Chayote, 609 Checker mallow, 609 Checkerberry, 676, 902 Checkerrnallow,

endophyllum tuberculatum,421

Cheilaria agrostis, 278, 283 Chelidonium, 605 Chelone, 887 ChemBam,16 ChemNeb,15 Chem Züoeb, 19 Chemicals

application of, 22-31 dusting of dusters, 27

dusts, all-purpose, 29 sprayÜ1g, contrasted, 28

üotegrated pest management, 30

mixüog of, 28 sprayüog of, 22

dusting, contrasted, 28 sprays, all-purpose, 29

Chemo-O-Bam, 5 Chemsect, 11 Chenopodium, 609 Cherianthus, 895 Cherimoya, 609

phakopsora cherimoliae, 430

Cherry, 609 albüoo, 485

bark splitting, 485 black canker, 485 black knot, 106 blossom blight, 148 blumeriella jaapii, 249 botryotinia fuckeliana, 122 brown rot, Color Plate BE,

148,379 buckskin,104,485 cholorsis, 486 dieback, 213 drawf ilavirus, 487 flowering,611 freckle fruit disease, 486 fruit rot, 380 green ring mottle, 486 gummosis, 486 Japanese flowering, 611 leaf blight, 144 leaf curl, 234 leaf spot, 239 little cherry, 486 midleaf necrosis, 486 mora,486 mottle leaf trichovirus, 486 mycosphaerella cerasella,

245 oriental, 611 powdery mildew, 344 ring spot, 487 rough bark, 487 rugose mosaic, 487 rusty mottle, 487 twisted leaf, 487 vein clearing, 487 venturia cerasi, 451 white rot, 398 witches' broom, 234

Cherry-laurel, 611 blumeriella jaapii, 249 mycosphaerella cerasella,

245 witches' broom, 234

Chervil, 546 downy mildew, 223

Chestnut, 612 blight, 140 monochaetia monochaeta,

267 Chgionodoxa, 615 Chickpea, 612

blight, 149 filiform potyvirus, 487 fusarium wilt, 526 root rot, 369 rust, 443 wilt, 526

Chickweed,612 Chicory, 240

bacterial rot, 91 witloof, 657

Chili pepper, wilt, 522 Chilopsis, 643 Chimaphila, 806 Chimibac 100, 20 China aster, 560

downy mildew, 219 leaf spot, 283, 287 petal blight, 146 phomas exigna, 241

Chinaberry, 613 black mildew, 112

Chinese cabbage, 613 anthracnose, 69 leaf spot, 91

Chinese elm, twig blight, 157 Chinese evergreen, 613

collar rot, 142, 369 foliar blight, 142, 369 pythium splendens, 400

Chinese hibiscus, 703 Chinese holly, 705

spot anthracnose, 470 Chinese lantern, 614 Chinese laurel, 546 Chinese quince, 821 Chinese silk-plant, Thames'

root-knot nematode, 315

Chinese tallowtree, 614 Chinese waxgourd, 614 Chinosol,14 Chinquapin,614 Chiogenes, 615 Chionanthus, 673 Chipco, 14 Chipco 26 GT, 14 Chipco 29019 Flo, 14 Chive, 615

cladiosporium allii, 262 Chloranil, 8 Chlorhexidine gluconate, 20 Chlorine injury, 328 Chloris gayana, 826 Chlorogalum, 615

cladosporium iridis, 262 iridis, 262

Chloroneb,8 Chloropicrin, 8 Chlorosis, 329

closterovirus broad bean, 482 tomato, 513

lime-induced,332 potexvirus

strawberry, 509 yellow edge,

strawberry, 509

Index. 949

Chlorothalonil, 8 Chlorotic dwarf waikavirus,

maize,498 Chlorotic mottle

bromovirus, cowpea, 480, 492

machlovirus, maize, 498 viroid, chrysanthemum,

Color Plate 3E Chlorotic ring spot

hibiscus, 495 rhubarb,507 shamrock, 507

Chlorotic spot geranium, 495 sorghum, 508

Chlorotic stunt, carlavirus, aster, 477

Chlosterovirus, grapevein, 495

Choanephora cucurbitarum, 131 infundibulifera, 131

Choanephoraceae, 41 Chocolate leaf spot, vetch,

242 Chocolate spot, narcissus,

499 Chokeberry, 615

gymnosporangium fraternum, 424

Chokecherry, 615 blumeriellajaapii,249 Taphrinaconfusa,234 X-disease, 104

Cholorsis, cherry, 486 Chondropodium

pseudotsugae, 182 Chondrostereum

purpureum, 407 Chorus, 10 Christie's spiral nematode,

grass, 321 Christie's stubby root

nematode, azalea, 322 Christmas cactus, 616 Christmas fern, 665

leaf blister, 234 Christmas rose, 616

black spot, 250 Christmasberry, 741, 801

scab,446 Chrysalidocarpus, 779 Chrysanthemum, 616

ascochyta ray blight, 120 aspermy, 487 bacterial black spot, 105 bacterial blight, 87 carlavirus, 488

950 • Index

Chrysanthemum (cant.) chlorotic mottle viroid,

Color Plate 3E cinerariifolium, 820 clorotic mottle viroid, 487 coccineum, 820 crown gall, Color Plate 4C fasciation, 82 flower distortion, 487 foliar nematode, Color

Plate 6E foliar symptoms, Color

Plate 3E frutescens, 749 fusarium wilt, 368, 523 green flowers, Color Plate

3B iron deficiency, 410 leaf nematode, 389 leaf spot, 252, 283 leucanthemum, 640 maximum, 844 mosaic,488 nematode, 304 parthenium, 667 petal blight, 146 phloem necrosis, lO6 ray blight, 125 ring spot, 488 rosette, 488 rust, 434 segetum, 629 stunt, Color Plate 3A, 3E,

488 white rust, 437

Chrysobalanus, 624 Chrysomyxa

aretostaphyli, 415 chiogenis, 415 empetri,415 ilicina, 415 ledi var. groenlandici, 415 ledi var. rhododendri, 415 ledi vr. cassandrae, 415 ledicola, 415 moneses, 415 piperiana, 415 pirolata, 415 weirii,415

Chrysopsis, 618 Chrysothamnus, 821 Chtinomeris, 536 Chytridiales, 36 Chytridiomycota, 36 Ciberinia camelliae, 166 Ciboria acerina, 132 Ciboria carunculoides, 132 Ciborinia

erythronii, 132

gracilis, 132 seaveri, 248 whetzelii, 248

Cibotium, 666 Cichorium, 657 Cimicifugaq, 618 Cinchona, 618 Cineraria, 618

mosaic,488 Cinnamon fern, 666 Cinnamon tree, 618 Cinnamon vine, 904 Cinnamonum, 597 Ciolletotrichum acutatum,

182 Cirsium, 619, 877 Cissus, 619, 797 Cistus, 829 Citronella grass, 730 Citrullus, 898 Citrus

blight, 163 brown rot, 395 canker, 98, 180 cladosporium

bruneo-atrum,444 criconema civellae, 306 cuscuta Americana, 217 diplodia rot, 392 dothiorella rot, 352 enation, 488 exocortis viroid, 488 foot rot, 393 fruit,775 fruit rot, 371, 386 green mold, 384 Ieprosis rhabdovirus, 488 mildew,342 mycosphaerella citri, 269 nematode, 323 psorosis complex, 488 ring nematode, 306 ring spot virus, 488, 489 rugose ilavirus, 488 scab, Color Plate 80, 469 septoria spot, 284 sour rot, 382 stubborn disease, 489 tatter leaf cappillovirus,

489 tristeza closterovirus, 489 twig blight, 172 variegation ilavirus, 488 vein enation, 489 woody gallluteovirus, 488 xyloporosis, 489 yellow vein, 489

Cladode rot cactus,363

Opuntia cacti, 352 Cladosporium

album,293 allii,262 beijerinckii, 133 bruneo-atrum, 444 carpophilum, 444, 445 cladosporioides, 132, 446 colocasiae, 248 coreopsidis, 445 cucumerinum,445 echinulatum, 248, 262 epiphyllum, 248 fulvum, 293 herbarum, 174 iridis, 262 paeoniae, 174 pisicola, 446 variabile, 262

Clarkia, 621 alternaria alternata, 238 downy mildew, 220

Clary sage, 835 Clausena, 622 Clavariaceae,50 Clavibacter, 82

agropyri, 82 fascians, 82 flaccumfaciens, 82 humiferum, 81 michiganense, 81 sepedonicum, 81 xyli,82

Clavicipitaceae, 45 Claytonia, 622

puccinia claytoniicola, 434 Clematis,622

ascochyta clematidina, 241 Ieaf blight, 156 Ieaf spot, 252

Cleome, 622 Clerodendrin, 578 Clerodendron, zonate ring

spot, 489 Cierodendrum, 623 Cierotiniaceae, 47 Clethra, 623 Cliff-brake fern, 665 Cliffbrush, 721 Cliftonia, 585 Climacoden septentrionalis,

406 Climbing hempweed, 756 Clinopodium, 623 Clintonia, 623 Clitocybe

monadelpha, 356 tabescens, 356, 532

Clitoria, 587

Clivia, 623 Clockvine, 877 Cloro-O-Pic,8 Cloro-O-Pic 70, 8 Clorotic mottle viroid,

chrysanthemum, 487 Clorto Caffaro, 8 Clorto Caffaro Fiow, 8 Clortocaf Romato, 8 Clortosip,8 Clortran, 10 Closterovirus, 58

lettuce, 497 pineapple, 503 tomato,513

Clove rot, garlic, 384 Clover, 623

anthracnose, 71 cyst nematode, 313 dodder, 217 leaf blight, 152 leaf spot, 279 mosaic, 489, 491, 515 nucleorhabdovirus, 510 owls, 777 potyvirus, 489 proliferation, strawberry,

104 red leaf luteovirus, 510 stern anthracnose, 71 uromyces trifolii, 444 vein mosaic carlavirus,

490,507 wound tumor

phytoreovirus, 492 yellow vein mosaic, 491 yellow vein potyvirus, 489

Club leaf, clover, 489 Club root, 214-215 Clypeosphaeriaceae,45 Cnicus, 877 Coach-whip, 772 Coast live oak, leptothyriurn

californicum, 264 Cobb's meadow nematode,

alfalfa, 318 Cobb's ring nematode, 306 Cobb's spiral nematode, 309 Cobb's stubby root

nematode, Bermuda grass,322

Coccoloba, 624, 842 Coccomyces

hiemalis, 249 kerriae, 249 lutescens, 249 prunophorae, 249

Cocculus, 601 Cochliobolus

heterostrophus, 143 Cocklebur, 624

stern rot, 404, 405 Cockscomb, 624 Cocksfoot, streak potyvirus,

492 Cocoa, 624 Cocoa-plum, 624 Coconut

black scorch, 234 budrot, 395 plumy, 780

Coconut palm, 779 lethai yellowing, Color

Plate lA, IB Cocos, 779 Cocoyam, 625 Coeurbits, bacterial wilt, 88 Codiaeum, 633 Codonanthe, 625 Coffee-berry, 625 Coffee-tree, Kentucky, 725 Cohosh,566

blue, 579 Coix lachryma-jobi, 722 Colchicum, 562 Coleosporium

apocyanaceum, 416 asterum, 416 crowellii,416 delicatulum, 416 helianthi,416 ipomoeae, 416 jonesii,416 lacinariae, 416 mentzeliae, 416 rninutum, 416 pacificum, 416 pinicola, 417 solidaginis, 416 tussilaginis, 416, 417 vernoniae, 416 viburni, 417

Coleus, 625 mosaic, 492

Collar blight, carnation, 118 Collar rot

Chinese evergreen, 142 papaya, 354 peanut, 375 pine, 363 rhododendron, 393

Colletotrichum, 67 acutatum, 67, 132, 250, 357 almond,67 antirrhini, 68 atramentarium, 68 azalea,71 black gum, 67

Index - 951

bletiae,68 capsici, 68, 357 circinans, 357 coccodes, 68,250,357 dematium, 68, 70, 71, 132,

250 elastica, 250 erurnpens, 68 fragariae, 68 fuscum,69 gloeosporioides, 69, 74,

132,357,371 graminicola, 69, 71 higginsianum, 69 lagenarium,69 liliacearum, 70 lilii, 70, 357 lindemuthianum, 70 malvarurn, 70 nigrum, 357 omnivorum, 70 orbiculare, 69, 70 phomoides,74 pisi,70 schizanthi, 70 spinaciae, 71 strawberry, 67 sublineola, 71 trichellurn, 71, 240 truncaturn,71 violae-tricoloris, 71

Collinsia, 625 Collinsonia, 626 Collomia, 626 Collybia velutipes, 358 Colocasia, 655 Color adding, lily, 497 Color removing, lily, 497 Colorado blue spruce, shoot

blight, 157 Coltsfoot, 626 Columbia root-knot

nematode, alfalfa, 315 Columbine, 626

leaf spot, 244 root rot, 393

Columbo, 626 Colurnnea, 627 Colutea, 577 Comac,7 Comandra blister rust, pine,

417 Cornmelina, 596

diffusa potyvirus, and cornmelina mosaic potyvirus, 492

mosaic potyvirus, 492 Cornovirus, 58

bean,479

952 • Index

Compass plant, 846 leaf spot, 96

Compotonia, 869 Compressed air sprayer, 25,

26 Condalia, 860 Cone rust, hemlock, 428 Cone scales, Norway spruce,

156 Coneflower, 833

prairie, 825 purple,652

Confederate-jasmine, 627 Confederate-rose, 703 ConieUa diplodieUa, 358 Conifer

brown crumbly rot, 366 brown cubical rot, 358 brown feIt blight, 144 brown rot, 398 brown trunk rot, 366 damping-off, 400 heartwood rot, 364 Indian paint fungus, 364 pestalotiopsis funerea, 272 phacidium coniferarum,

204 red ray rot, 395 scaly cap, 376 seedling root rot, 400 snow blight, 155 spongy sap rot, 364 string butt rot, 398 tip blight, 154 white pocket rot, 366 white root rot, 397

Coniophora puteana, 358 Coniothyrium

concentricum, 250 diplodiella, 358 fuckelii,147,182 hellebori, 250 pyrina, 250 rosarum, 183 wemsdorffiae, 183

Conium,811 Connamonum-zeylandicum,

618 Conoplea globosa, 211 Conquefoil, 816 Constricting mosaic, prune,

505 Continuous sprayer, 26 Convallaria, 735 Convolvulus japonicus, 594 Coontie, 906 Cooperia, 823 Cop-O-Cide, 9 Copper, sprays containing,

injury, rose, Color Plate 6C

Copper acetate, 8 Copper ammonium

carbonate, 8, 20 Copper carbonate, 8 Copper chloride, 8 Copper complex, 20 Copper compounds, 8 Copper-count-N,8 Copper-count-NS, 8 Copper deficiency, 329 Copper hydroxide, 8 Copper injury, rose, Color

Plate 6C Copper-Ieaf, 535 Copper-lime dust, 9 Copper Nordox, 9 Copper oxide, 9 Copper oxinate, 9 Copper oxychloride, 9 Copper oxychloride sulfate,

20 Copper Power, 9 Copper Pride, 9 Copper salts, fatty, rosin

acids, 9 Copper-Sandoz, 9 Copper spot, turf, 257, 280 Copper sulfate, 9, 13 Copper-triethanolamine

complex,9 Coppercide, 9 / Coprinus urticicola, 359 Coptis, 686 Corail,18 Coral beUs, 703

puccinia heucherae, 435 Coralberry, 627

cercospora symplocarpi, 247

puccinia crandallii, 434 Coratop,17 Corbel,12 Cord grass, ash rust, 439 Cordaderia, 782 Cordia, 627 Cordyline terminalis, 878 Core rot, apple, 388 Coreopsis, 627

cladosporium coreopsidis, 445

Coriander, 628 feathery red vein

nucleorhabdovirus, 492

Coriandrum, 628 Coriolus versicolor, 398 Cork,329

Corkyrot cantaloupe, 369 lettuce,97

Com American dagger

nematode, 323 bacterial spot, 89 bacterial stripe, 89 bacterial wilt, 88 brown spot, 277 ear rot, 363 Godfrey's meadow

nematode, 318 head smut, 458 helicotylenchus dihystera,

309 helicotylenchus

pseudorobustus, 309 leaf blight, 143 leaf fleck, 492 leaf spot, 90 mosaic,492 nigrospora cob rot, 381 parasite, 530 pratylenchus hexincisus,

318 root rot, 371 rust,438 smut,484 smut boil, 462 Stewart's disease, 88 stunt, 104, 106 sweet, 628

Com cyst nematode, 313 Com-marigold, 629 Com meadow nematode,

319 Com-salad, 889 Comcockle, 629

marssonina delastrei, 266 Cornflower, 607 Comus canadensis, 647 Comus florida, 648 Comus nuttalli, 649 Corona,17 Coronilla varia, 635 Corozate,19 Corsetia, phragmopyxis

acuminatoa, 432 Corticium

centrifugum, 359 fuciforme, 359 galactinum, 359 koleroga, 133 microsclerotia, 66, 133, 152 salmonicolor, 133 stevensü, 133, 152 vagum,66,133

Corydalis, 629

Index. 953

Corylus, 698 Crag Fruit Fungicide 341, 13 potato,504 Corynebacterium Crambe,842 strawberry, 509

agropyri, 82 Cranberry, 631 Crinum,633 humiferum, 81 acanthorhynchus vaccinii, Crisfolatan, 7

Coryneliaceae, 44 348 Crisfuran,21 Corynespora cassiicola, 250, bitter rot, 372 Cristulariella

360 black rot, 355 depraedans, 251 Coryneum berckmansü, 133 black stern spot, 270 moricola, 251 Coryneum blight, 133 early rot, 373 Crocanthemum, 674 Coryneum canker end rot,372 Crocus, 633

cypress, 184 false blossom, 492 autumn,562 rose, 187 red leaf gaU, 232 Crolina jessamine, 601

Coryneum cardinale, 184 rose bloom, 228 Cronartium Coryneum carpophilum, 133 Cranesbillm, 678 appalachianum, 417 Coryneum microstictum, Crank duster, 26 coleosporioides, 417, 418

133 Crape-jasmine, 875 comandrae, 417 Cosmos,629 Crape-myrtle, 632 comptoniae, 417 Cotinus, 848 cercospora lythracearum, conigenum, 418 Cotoneaster, 630 246 filamentosum, 417 Cotton powdery mildew, 339 harknessü, 418

anthracnose,74 tip blight, 157 occidentale, 418 leaf curl bigeminivirus, Crassula, 632 quercum f. sp. fusiforme,

492 Crataegus, 697 418 Cotton root-knot nematode, Creeper, Virginia, 894 quercuum f. sp. fusiforme,

316 Creeping bentgrass 418 Cotton root rot, 388 bacterial wilt, 82 ribicola, 418 Cottonwood, 812 leaf blight, 143, 164 stalactiforme, 420

ink spot, 248 Toronto, bacterial wilt, 82 strobilinum, 420 Coulter pine, needle cast, Creeping snowberry, 615 Crossonema, 306

295 chrysomyxa chiogenis, Crossvine, 574 Coursetia, 630 415 Crotalaria, 633 Covered kernel smut, 459 Creosote bush, 633 Croton, 633, 634 Covered smut Crepis, 697 zebra plant, 230

barley,461 Cress, 797 Crotothane, 11 oats, 461 peronospora parasitica, Crowberry, 635

Cow-parsnip, 702 221 chrysomyxa empetri, 415 Cowania, 630 Cribopeltis citrullina, 227 Crowfoot, 823 Cowpea,630 Criconema Crown canker, rose, 188

black pod spot, 157 civellae, 306 Crown gaU, 78 canker, 102 decalineatum, 306 chrysanthemum, Color chlorotic mottle spinalineatum, 306 Plate 4C

bromovirus, 480, 492 Criconemoides rose, 79 fusarium wilt, 526 annulatum, 306 Crown necrosis, African mosaic cornovirus, 492 citri,306 daisy,405 wilt, 526 crotaloides, 306 Crownrot zonate leaf spot, 241 curvatum, 306 anemone, 124

CP Basic Copper, 9 cylindricum, 306 delphinium, 406 Crabapple komabaensis, 306 eustoma, 366

anthracnose, 77 lobatum, 306 flannel bush, 394 canker, 203 mutabile, 306 papaya,354 flowering, 631 ornatum,306 peanut, 352 illosporium malifoliorum, rusticum,306 penstemon, 393

262 similis, 306 primrose, 125 oidium pirinum, 342 teres, 306 rhubarb,88 sooty blotch, 174 xenoplax, 306 snap-dragon, 380

Crabgrass, 646 Crimson clover, nepovirus, sweet corn, 374 parasite, 530 493 tomato, 368

Cracked stern, 329 Crinkle turf grass, 376 Crag Clyodin, 13 geranium, 495 Crown rust, oats, 434

954 • Index

Crown vetch, 635 Crownbeard, 891 Crucifer

black leaf spot, 239 black rot, 97 blackleg, 108 downy mildew, 221 leaf spot, 91 ring spot, 268 white rust, 516

Cruenta, soybean, 269 Cryphonectria

cubenis, 191 parasitica, 140, 184

Cryptantha, 634 Cryptanthus, 634 Cryptocline

betularum, 257 cinerescens, 134

Cryptococcaceae,52 Cryptodiaporthe

aculeans, 185 castanae, 185 salicella, 185

Cryptogramma, 666 Cryptomeria, 634

needle blight, 157 Cryptomyces maximus, 185 Cryptomycina pteridis, 251 Cryptospora longispora, 134 Cryptosporella

umbrina, 185-188 viticola, 188

Cryptosporium minimum, 188 pinicola, 188

Cryptostictis, 134 arbuti,251

Crytosporiopsis pruinosa, 196

Ctalpa, 398 Cubical rot, heartwood, 366 Cucumber, 635

anthracnose, 69 bacterial wilt, 88 blight,118 cladosporium

cucumerinum,445 cuscuta gronovii, 217 fusarium wilt, 524 gummy stern blight, 149 hope cyst nematode, 311 leaf spot, 288 mosaic cucumovirus, 492,

493,497 mosaic tymovirus, 515 mosaic virus, Color Plate

4E,5E wilt, 88, 524

Cucumis melo, 753 Cucumis sativus, 635 Cucumovirus,58 Cucurbit, 858

altemaria blight, 118 angular leaf spot, 93 downy mildew, 224 leaf spot, 287 powdery mildew, 338, 344 septoria leaf spot, 284

Cucurbitariaceae,45 Cudweed, 683 Cufraneb,9 Culves-root, 636 Cuman,19 Cumene,19 Cumminsiella

mirabilissima, 421 texana, 420

Cunila,647 Cunninghamia, 636 Cuphea,636 Cupresus, 638 Cuprimicin-17,21 Cuprimicina-Agricola,20 Curalan,19 Curamil,17 Curaterr, 21 CurframZ,9 Curitan,11 Curls, bIue, 579 Curly drawf potex virus,

artichoke, 477 Curly mottle bigeminivirus,

watermelon, 515 Curly top hybrigeminivirus

pseudo, tomato, 513 tomato,513

Curly top hydrigeminivirus, beet, 480

Currant, 636 anthracnose,77 cane blight, 121 cane-knot canker, 212 dieback, 205 European powdery

mildew,342 flowering, 637 golden, Pseudomonas

ribicola, 92 melampsora

ribesii-purpureae, 428 mosaic,493 mycosphaerella ribis, 268 nematode, 304 puccinia caricina, 434 septoria ribis, 270

Curtobacterium, flaccumfaciens, 82

Curuba, 602 Curvalaria cyrnbopogonis,

135 Curvularia

lunata, 135 pecan, 235

Curzate,9 Curzate M, 15 Curzate M8, 15 Cuscuta, 647

Americana, 217 coryli,217 exaltata, 217 gronovii,217 indecora, 218 paradoxa, 218 pentagona, 218 planifera, 218

Cushion-pink, 845 Custard-apple, 609 Cyamopsis, 694 Cyanthus stercoreus, 225 Cycad,637 Cycas, 637 Cyclamen, 638

blight, 142 fusarium wilt, 524 leaf spot, 284 wilt, 524

Cyclaneusma niveum, 298 Cycloconium oleaginum,

252 Cycloheximide, 9 Cyclomorph, 11 Cydonia, 820 Cygnus,19 Cylindrocarpon

cylindroides, 188 destructans, 360 didymium, 188 liriodendri, 360 obtusisporum, 108

Cylindrocladium, 354 avesiculatum, 136, 252 black rot, peanut, 361 blight, 135 clavatum, 135, 252, 361 colhounii, 252 crotalariae, 361 heptaseptatum, 361 parasiticum, 361 pauciramosum, 361 pteridis, 252, 361 scoparium, 135, 188, 361 scorparium, 361

Cylindrosporium betulae, 252 chrysanthemi,252 clematidinis, 252

defoliatum, 136 griseum, 136 juglandis, 136 mali,201 populinum, 266 rubi,286 salicinum, 253 spirea, 253

Cymbidium, mosaic potexvirus, 493

Cymbopogon, 730 Cymoxanil, 9 Cynara

cardunculus, 599 scolymus, 556

Cynoglossum, 638 Cyperus rotunders, 769 Cyphellopsis anomala, 210 Cyphomandra, 882 Cypress, 608, 638

bald,564 bark canker, 184 heart rot, 376 root rot, 394

Cypress spurge, 857 Cypress-vine, 639 Cyprex,l1 Cyproconazole, 9 Cyprodinil, 10 Cyrilla, 639 Cyrtomium, 665 Cyst nematode

clover, 313 nutsedge,311 tobacco, 312

Cystopteris, 664 Cystotheca lanestris, 344 Cytisus, 584 Cytorhabdovirus, 58 Cytospora, 190

abeitis, 189 cytospora, 190 kunzei, 189 leucosperma, 190 leucostoma, 190 mulberry, 253 nivea, 190 pruinosa, 189 salicis, 213 spruce, 189

Cytosporina dieback, apricot, 194

Cytovirin, 22 CyUariaceae, 46

D-D92,21 D-DSoil Fumigant, 21 Daconil 2787, 8 Daconil Ultrex, 8

Dactylaria higginsii, 253 Daedalea

confragosa, 361 quercina, 361 unicolor, 361

Daedaleopsis confragosa, 361

Daffodil,765 Dagger nematode, sequoia,

324 Dahlia, 639

blight, 125 leaf smut, 457 mosaic caulimovirus, 493 oakleaf, 493 ring spot, 493 Seinhorst stubby root

nematode, 322 Daisy

African, 536 Engelmann, 657 English, 657 freeway, 673 oxeye,640 shasta,844 swan river, 583

Daldinia concentrica, 362 Dalea, 848

uropyxis eysenhardtiae, 444

Dalibarda, 640 Dames-rocket, 702 Damping-off, 66, 215-216

cabbage, 400 celery, 400 conifer, 400

Dandelion, 641 cape,598 dwarf,726

Daphne, 641 leaf spot, 257 marssonina daphnes, 266

Dapple, apple, 476 Darlingtonia, 593 Dasanit, 21, 22 Dasheen, mosaic potyvirus,

494 Dasyscyphus

agassizi, 190 calycina, 190 ellisiana, 190 pseudotsugae, 190 resinaria, 190 willkommii, 190

Date calyx-end rot, 352 fruit rot, 354, 386

Date palm, 779 annellophora phoenicis,

Index - 955

240 stalk rot, 363

Date plum, decline disease, 382

Datura,641 Daucus carota, 601, 602 Davisomycella ampla, 296 Daylilies, 70

anthracnose, 70 Daylily, 641 Dazomet, 10,21 DCNA. Ä-ÄSeek.Ä

Dichloran DDT,29 DDT injury, 329 De Man's meadow

nematode, 319 Dead-arm disease, grape,

188 Dead timber, brown cubical

rot, 361 Decline disease, date plums,

382 Decline phytoplasma, pear,

503 Decline potyvirus, poplar,

503 Decumaria,641 Deergrass, 826 Defend,16 Deksonal, 12 Delan, 11 Delan-Col, 11 Delaney clause, Food

Additives Amendment, 3

DelphineIla balsameae, 164 DelphineIla blasameae, 136 Delphinium, 642

black spot, 93 blackleg, 86 crown rot, 406 ring spot, 494

Delsene,7 Dematiaceae, 52 Demorphotheca, 643 Demosan,8 Denarin, 19 Dendranthema grandiflora,

616 Dendromecon, 882 Dendrophoma obscurans,

136 Dendrothele acerina, 178 Deodar, 605 Dermatea

acerina, 191 balsamea, 191 livida, 191

956 • Index

Dermea aeerina, 191 balsamea, 191 pseudotsugae, 191

Derosal,7 Desain,11 Desert bird-of-paradise, 643 Desert-candle, 643 Desert-plume, 643 Desert-rose, 643

aristastoma, 241 Desert-thorn, 741 Desert-willow, 643 Desmanthus, 587 Desmella aneimiae, 420 Desmodium, 644, 705

mosaic potyvirus, 494 yellow mottle tymovirus,

494 Deuteromyeetes, 40, 51

spore forms, 41 Deutzia, 644 Devils-club, 644 Devilwood, 644 Devizeb,19 Dewberry, 644

bramble anthracnose, 473 eane blight, 147 eane spot, 179 downy mildew, 222

Dewdrop, 640 Dexon,10 Di-Trapex, 22 Diamidfos, 21 Diamond eanker, prune, 506 Dianthovirus, 58 Dianthus, 644

barbatus, 873 earyophyllus, 599 septoria leaf spot, 284 ustilago violaeea, 463

Diapleela, eoniothyrium, 147,182,198

Diaporthe arctii,137 blight, larkspur, 137 citri,362 eubensis, 191 eres, 191 helianthia, 191 oneostoma, 191 phaseolorum, 137, 191,362 pruni,191 vaeeinii, 137 vexans, 137 vineae,205

Diatrypaeeae,45 Dibotryon morbosum, 106 Dibrome,20

Dibromoehloropropane,21 Dicamate, 15 Diearbonitrile, 11 Diearboximide, 7, 8, 14 Dieentra, 651 Dieentra spectabilis, 578 Diehlofluanid, 10 Diehlone, 10 Diehloran, 10 Diehlorofenthion,21 Diehlorophen, 20 Diehloropropene,21 Diehloropropene-

dichloropropane, 21

Diehomitus squalens, 395 Diehondra, 644 Diehotomophthora

portulaeae, 192 potulaeae, 362

Diehotomophthoropsis numphaearum,253

Didymaria didyma, 253 Didymaseella

thujina, 138 tsugae, 138

Didymella applanata, 139 liguliea, 120 lyeopersici,241 sepincoliformis,192

Didymellina maerospora, 253 ornithogali, 254 poecilospora, 254

Didymosphaeria populina, 139

Didymosporina aeeris, 266 Didymosporium arbutieola,

254 Diebaek,178-214,329

apple,213 ash, 192 boxwood, 201 Bradford pear, 180 elm, 194 gooseberry, 205 Japanese maple, 182 peaeh, 180 periwinkle, 205 poplar, 182 raspberry, 72 rhododendron, 207 rose, 192 sequoia, 180 sequoiadendron, 180 southern pine, 194 thomless blaekberry, 180 vinea,205

walnut, 192 western larch, 200

Dieffenbaehia, 646 leaf rot, Color Plate 4A

Diervilla, 646 Diethofenearb,lO Difenoeonazole, 10 Diffusa potyvirus,

eommelina, 492 Difolatan, 7 Digitalis, 672 Digitaria, 646 Dill,646

root rot, 370 Dilophospora geranii, 254 Dimanin A, 20 Dimanin C, 20 Dimerium juniperi, 111 Dimerosporium

abietis, 111 hispidulum, 111 pulehrum, 111 robiniae, 111 tropicale, 111

Dimethirimol, 10 Dimethomorph, 10 Dimethylphenol, 20 Dimortheea, 598 Dinieonazole, 10 Dinitro eompounds, 11 Dinitrophenyl, 6, 11 Dinobuton, 11 Dinoeap,11 Dinofen,11 Diodia,646

vein ehlorosis chlosterovirus, 494

Dionaea muscipula, 890 Dioscorea,904 Diospyros, 797 Dipher, 19 Diploearpon

earlianum, 235 mespili,141 rosae, Color Plate 6D,

114-117 Diplodia

aeerina,283 eamphorae, 192 eoluteae, 139 gossypina, 140 infuseans, 192 juglandis,l92 mutila, 192 natalensis, 139, 192, 363 opuntia, 363 phoenieum, 363 pinastri, 363 quereina, 192

rhododendri, 255 rot, 392 sophorae, 192 theobromae, 363 tubericola, 363 zeae,363

Diplosporonema delastrei, 266

Diplotheca tunae, 112 wrightii, 255

Dipsacus, 875 Dirca,729 Direx, 11 Discella

carbonacae, 193 micropserma, 193 ochroleuca, 266

Discochora philoprina, 276 Discogloeum concentricum,

256 Discohainesia oenotherae,

273 Discosporium populeum,

193 Discostroma corticola, 196 Discula

campestris, 71 destructive, 71 fraxinea, 72 quercina,14O umbrinella, 76

Disinfectant, defined, 1 Distortion mosaic virus,

beet, 481 Dithane, 15, 19 Dithane D-14, 16 Dithane M-22, 15 Dithane M-22 Special, 15 Dithane M-45, 15 Dithianon, 11 Dithiocarbamate, 12, 15, 16,

17,18,19 Dithiocarbonate, 19 Ditranil Kiwi, 10 Dittany, 647 Ditylenchus

dipsaci, 307 gallicus, 308 iridis, 308

Dityylenchus destructor, 307

Dividend, 10 Dizygotheca, 647 DMTI. kÄSeekÄ

Dazomet DNC, 11 DNOC, 11 Doassansia epilobii, 456

Dodder, 217-218, 647 alfalfa, 218 clover, 217 hazel, 217 littleseed alfalfa, 218 mosaic, 494 oleander, 216

Dodecatheon, 647 Dodemorph, 11 Dodine,11 Dodocatheon,puccinia

solheimi,438 Dogbane, 647 Dogs-tooth violet, 660 Doguadine, 11 Dogwood

anthracnose, 71 ascochyta cornicola, 241 blight, 125, 163 cercospora cornicola, 246 dwarf,647 flowering, 648 fruit spot, 132 gray, 649 leaf spot, 284 mosaic nepovirus, 494 Pacific, 649 pagoda,649 powdery mildew, 342 red osier, 649 Schiffnerula pulchra, 112 spot anthracnose, 469 twig blight, 132, 134, 150 western osier, 649

Dojyopicrin, 8 Dolichodorus

heterocephalus, 308 obtusus, 308

Dolichos, 649 Dollar spot, turf, 404 Dolochlor, 8 Dorado, 17 Dorlone,21 Doronicum, 649 Dorylaimus, soybean, 309 Dosage directions, 28 Dothichiza, 193

caroliniana, 255 populea, 193

Dothideaceae, 44 Dothideales, 44 Dothiora

polyspora, 193 ribesia, 205 taxicola, 170 wolfii,170

Dothiorella, 194,352,522 fraxinicola, 194 gregaria, 352

Index - 957

quercina, 194 ulmi, 194

Dothistroma pini, 140 DoubleR,14 Double streak, tomato, 514 Douglas fir, 649

arceuthobium Doulgasii, 291

bark canker, 182 canker, 190 criconemoides crotaloides,

306 nacobbodera chitwoodi,

317 needle cast, 298, 299 phoma eupyrene, 298 phomopsis lokoyae, 205 root rot, 398 rust, 428

Dove-plum, 624, 842 Dowfume,20 Downy mildew, 218, 218,

219-225 acalypha, 223 agrimony, 222 aster, 219 beet, 222 bermuda grass, 225 blackberry, 222 bur-marigold, 223 carnation, 220 crucifers, 221 cucurbits, 224 forget-me-not, 221 godetia, 220 grape,223 hackberry, 224 lettuce, 219 lima bean, 222 lupine, 222 oats, 225 onion, 220 pea, 221 prickly-poppy, 220 rhubarb, 222 rose, 222 snapdragon, 220 soybean,221 spinach, 221 statice, 222 strawberry, 221 sweet corn, 222 viburnum, 223

Downy pot, pecan, 268 Doxantha, 605 Draba, 650 Dracaena, 651

leaf spot, Color Plate 7E, 88,276

958 • Index

Dracaena (cont.) tip blight, 158 wilt,86

Dracocephalum, 651 Dragon Systemic Fungicide,

18 Dragonhead, 651 Drawf ilavirus, prune, 487 Drawinol, 11 Drazoxolon, 11 Drechslera

catenaria, 143, 259 dictyroides, 260 erythrospilum, 260 gigantea, 143 giganteum, 260 poae, 261 setariae, 260 siccans, 260 stenacra, 260 triseptata, 260 tritici-repentis, 261

Drepanopeziza ribis, 77 Drop spreader, 26 Drought, 330 Dry bubble, oyster

mushroom, 529 Dry rot

carrot, 378 gladiolus, 408 sweetpotato, 362

Dryopteris, 667 Dunema,22 Du-Ter,19 Duchesnea, 758 Duranta, 651 Dusters, 22, 27 Dusting,22

dusters,27 spraying, contrasted, 28

Dusts, aIl-purpose, 29 Dusty-miIler, 607 Dutch elm disease, 485,

519-522 Dutch hyacinth, yellow rot,

100 Dutch iris, 717 Dutchmans-breeches, 651 Dutchmans-pipe, 651

ovularia aristolochiae, 272 Duter, 19 Dwarfbanana, 149,566 Dwarf blackberry, 481 Dwarf bunt, wheat, 459 Dwarf dandelion, 726 Dwarf dogwood, 647 Dwarf gardenia, root-knot

nematode, 315 Dwarf ilavirus, prune, 506

Dwarf loganberry, 498 Dwarf luteovirus, soybean,

508 Dwarf mistletoe, 758

arceuthobium Americanum, 291

arceuthobium cyanocrpum, 291

arceuthobium Doulgasü, 291

arceuthobium laricis, 291 arceuthobium occidentale,

291 arceuthobium vaginatum,

291 peridermium bethelii, 430

Dwarf mosaic potyvirus, naize, 498

Dwarf peach, 501 Dwarf schefflera, 841 Dwarf waikavirus, chlorotic,

maize,498 DweIl,11 Dynone,17 Dyrene,5 Dyrene,11 Dyschoriste, 652

E-D-Bee,20 Eagle, 16 Ear rot, corn, 363 Early blight

carrot,130 celery, 130

Early rot, cranberry, 373 Earthcide, 16 Easter cactus, 652 Easter lily

black scale rot, 357 scale-tip rot, 360

Eastern dwarf mistletoe, arceuthobium pusillum, 291

Eastern gall rust, pines, 418 Eastem mistletoe,

phoradendron serotinum, 290

Eastern red cedar blight, 198 gymnosporangium

effusum, 423 Eastem wild cherry,

Taphrina farlowii, 234 Echeveria, 652

leaf spot, 287 EchidnodeIla, rugispora, 112 EchidrodeIla, angustiformia,

112 Echinacea,652

Echinocactus,591 Echinochloa, 652 Echinocystis, 758 Echinodontium tinctorium,

364 Echinops,683 Echium,894 Echo,8 Eclipta, 652

blight, 168 Ectostroma liriodendri, 255 Edifenphos, 11 Eelworm, 299. A...Asee

alsoÄ..Ä Nematode narcissus, 307

Efuzin,11 Egg-fruit, 740 Eggplant, 652

anthracnose, 72 cercospora melongenae,

246 didymella lycopersici, 241 phomopsis blight, 137, 157 rust, 439

Eichhornia, 897 Elaeagnus, 653,835 Elaphomycetaceae,47 Elder,654

branch canker, 190 Elderberry, 654

carlovirus, 494 carmovirus, 494 disease, 494

Elecampane, 716 Electerm, 12 Elephants ear, 655

cladosporium colocasiae, 248

Eleusine, 655 Elgetol, 11 Elgetol 30, 11 Elite, 18 Elm,655

bleeding canker, 206 dieback, 194 ditylenchus gallicus, 308 Dutch elm disease, 485,

519-522 gloeosporium ulmeum,

258 leaf blister, 234 leaf spot, 257, 283 mosaic,494 phloem necrosis, 104 powdery mildew, 343 twig canker, 179 wetwood,88 wound rot, 395 zonate canker, 494

Elsinoaceae, 43 Elsinoe,67

ampelina, 469 cinnamomi, 469 corni,469 diospyri, 469 euonymi-japonici, 469 fawcettii, Color Plate 8D,

469 ilicis, 470 jasminae, 471 ledi,471 lepagei, 471 leucospila, 471 mangiferae, 472 mangnoliae, 471 mattirolianum, 472 parthenocissi, 472 phaseoli, 472 piri,472 quercicola, 472 quercus-falcatae, 472 randii,472 rosarum, 472 solidaginis, 473 tiliae, 473 veneta, 473

Elvaron,10 Elymus,901 Elytroderma deformans, 295 Embassador, 10 Emilia, 656 Empetrum, 635 Enable,12 Enamovirus, 58 Enation

citrus, 488 pea, 501 tomato, 513

Encelia, 656 Encoelia pruinosa, 181 Encoeliopsis rhodedendron,

255 End rot, cranberry, 372 End spot, 3330 Endive, 657

Belgium, bacterial rot, 91 French, bacterial rot, 91 puccinia hieracii, 437

Endoconidiophora fagacearum, 518 fimbriata, 355 fimbriata f. platani, 181

Endocronartium harknessii, 418,421

Endophyllum sempervivi, 421 tuberculatum,421

Endothia gyrosa, 194

Enercol, 13, 17 Engelmann daisy, 657 Engelmannia, 657 English daisy, 657 English holly, 705

canker, 191 English iris, 717 English ivy, 7198

amerosporium trichellum, 240

leaf spot, 100, 276 powdery mildew, 342 scab,473

English walnut, cacopaurus pestis, 305

Entomophthorales,41 Entomosporium

maculatum, 141 mespili,141 thuemenii,141

Entyloma calendulae, 456 compositarum, 456 dactylidis, 457 daliae,457 ellisii, 457 lineatum, 457 polysporum, 457

Entylomella armoraciae, 280 Environmental Protection

Agency,3 EPA. Ä-ÄSeeÄ~

Environmental Protection Agency

Epicoccum asterinum, 256 nigrum, 194,256,364

Epigaea, 658 Epilobium, 658

leaf smut, 456 Episcia, 658 Epoxiconazole, 11 Equitdazin, 7 Eranthemum, 658 Eremochloa, 607 Eremurus, 643

myrothecium roridum, 271

Erianthus, 809 Erica, 699

uredo ericae, 443 Erigenia, 696 Erigeron, 659

downy mildew, 219 Eriobotrya, 739 Eriodictyon, 905 Eriophyllum, 659 Erodium, 702

cicutarium, 669

Index. 959

Erosa pine, needle cast, 295 Erostrotheca multiformis,

293 Ersiphe cruciferarum, 339 Eruca sativa, 557 Erwinia

amylovora, 83 carnigieana, 85 carotovora, 85, 86 chrysanthemi, Color Plate

4A, 4B, 87 cypripedii, 87 herbicola, 88 nimipressuralis, 88 rhapontica, 88 stewartii, 88 trcheiphilia, 88

Eryngium, 659 Erysimum, 895 Erysiphales, 43 Erysiphe

aggregata, 338 cichoracearum, Color Plate

5D, 338, 450 graminis, 339 heraclei, 339 lagerstroemiae, 339 orontii, 340 panax,340 polygoni, 340 taurica, mesquite, 341

Erythricium salmonicolor, 133

Erythrina, 659 Erythronium, 660

black spot, 242 leaf blight, 132 smut,461

Erythroxylon, bubakia erythroxylonis, 414

Erythroxylum, 660 fusarium wilt, 524 wilt, 524

Escarole, 657 Eschscholtzia, 593 Etch potyvirus, tobacco,

511 Etched ring caulimovirus,

carnation, 482 Ethazol,l1 Ethoprop,22 Ethylene dibromide, 20, 22 Etridiazole, 11

thiophanate methyl with, 18

Euascomycetidae, 42 Eucalyptus, 660

canker, 191 Eucharis, 660

960 • Index

Eugenia,661 black spot, 110

Euonymus, 661 basal canker, 209 japonicus, 342 leaf spot, 256 mosaic,494 mycocentrospora

verrucosa, 271 powdery mildew, 453

Euparen,10 Eupatorium, 661

ascochyta compositarum, 241

boleosporium steviae, 414 stern blight, 125

Euphorbia, 686 corollata, 858 cyparissias, 857 escula,858 heterophylla, 858 lathyris, 857 maculata,858 marginata, 850 microsphaera euphorbiae,

341 mosaic begiminivirus, 494 pulcherrima,810 supina, 858 trigona, 403, 662

European black alder, canker,204

European dagger nematode, rose, 324

European larch, canker, 190, 198

European mistletoe, viscum album, 290

European nectria, canker, 201

European plum, venturia cerasi, 451

European powdery mildew, currant, 342

Europoean larch, needle cast, 297

Eurotiales,42 Eusarium buxicola, 201 Eustoma, 662

crown rot, 366 Eutypa armeniacae, 194 Evening primrose, 772

downy mildew, 220 Evergreen, Chinese, 613 Evergreen euonymous, spot

anthracnose, 469 Everlasting, 662 Evolvulus, 662 Exacum,662

stern rot, 369 Exanthema, 330 Excipulaceae,51 Exobasidiaceae, 50 Exobasidium

burtii,228 camelliae,228 oxycocci, 228 rhododendri, 228 symploci, 228 uvae-ursi, 228 vaccinii, 228 vaccinii-uliginosi,230

Exocortis viroid, citrus, 488 Exosporium

concentricum,256 liquidambaris, 256

Exotherm, 8 Exposporium palmivorum,

256 Exserohilum

rostratum, 260 turcicum,374

Eysenhardtia, uropyxis eysenhardtiae, 444

Fabavirus, 58 Fabraea thuemenii, 141 Fagus,571 Fairy ring, 225-226 Fairy ring spot, carnation,

262 Fall-daffodil, 862 False blossom, cranberry, 492 False-boneset, 727 False bugbane, 882 False chamomile, 751 False dragonhead, 801 False garlic, 769 False-hellebore, 890 False indigo, 566 False loosestrife, 740 False-mallow,745 False-mesquite, 594 False root-knot nematode,

sugar-beet, 317 False smut, palms, 457 False solomons seal, 847 Fanleaf nepovirus,

grapevein, 495 Farkieberry, 663

leaf spot, 276 ophiodothella vaccinii,

271 ÄÄFarm Chemicals

Handbook,ÄÄ4 Fasciation

carnation, 82 chrysanthemum, 82

geranium, 82 gypsophila, 82 impatiens, 82 petunia,82 pyrethrum, 82 sweet pea, 82

Fatty acids, copper salts, 9 Favolus alveolaris, 364 Feather rot, conifer, 398 Feathery mottle potyvirus,

sweet potato, 510, 511 Feathery red vein

nucleorhabdovirus, coriander, 492

Febrella tsugae, 138 Federal Environmental

Pesticide Control Act, 3

Federal Insecticide, Fungicide and Rodenticide Act, 2-3

Feijoa,663 soft rot, 384

Feit fungus, 210 hackberry, 210 holly, 210 water oak, 210 willow,210

Fenaminosulf, 12 Fenamiphos, 22 Fenarimol, 12 Fenbuconazole, 12 Fendlera, 663 Fennel,663

blight,131 Fenolovo acetate, 19 Fenpielonil, 12 Fenpropidin, 12 Fenpropimorph, 12 Fensulfothion, 22 Fentin acetate, 19 Fentin hydroxide, 19 FEPCA. Ä-ÄSeeÄ-Ä Federal

Environmental Pesticide Control Act

Ferbam,12 Ferbek,12 Fermasan, 18 Fermate, 12 Fermid 850, 18 Fern

adders tongue, 663 alternaria polypodii, 239 anthracnose,74 asparagus, 560 bird's nest, 90, 91, 664 bladder, 664 Boston, 664 bracken, 664

brake, 664 chain,667 Chrisanas, 665 cliff-brake, 665 cryptomycina pteridis, 251 holly, 665 lady, 665 leaf spot, 252 leatherleaf, 665 maidenhair, 665 osmunda, 666 rock,667 rock-brake, 666 sensitive, 666 shield,667 tip blight, 157 tree, 666 walking, 667 wood,667 woodwardia, 667

Fernleaf, tomato, 513 Fescue

drechslera siccans, 260 galls,302 Kentucky bluegrass, 369 leaf spot, 285 netblotch, 260 smut,463

Fetterbush,742 Feverfew, 667 Ficus

aurea,668 carica, 667 elastica, 833

Field pansy, floral smut, 461 FIFRA. Ä-ASeeÄ-A Federal

Insecticide, Fungicide and Rodenticide Act

Fig, 667 colletrotrichum

gloeosporioides, 250 criconema decalineatum,

306 Florida strangler, 668 green fruit rot, 405 leaf blight, 152 limb light, 133 mosaic, 494 pratylenchus musicola,

318 pseudcercospora, 268 ripe rot, 367 rust, 415 storage rot, 411 thread blight, 152 white root rot, 403

Fig cyst nematode, 310 Fig-marigold, 755 Figwort, 669

mosaic caulimovirus, 494 Fijivirus, 58 Filaree

red leaf luteovirus, 494 red-stern, 669

Filbert, 698 blight,98

Filiform potyvirus, chickpea, 487

Filipendula, 752 Filipin,12 Fimetariaceae, 45 Fir, 669

arceuthobium laricis, 291 branch canker, 191 brown pocket rot, 406 canker, 178,200,201 Douglas, 649 hyalopsora aspidiotus, 426 lirula abietis-concoris, 296 lophodermium piceae, 297 needle blight, 144, 157 needle cast, 294 peridermium

ornamentale, 430 peridermium rugosum,

430 pitted sap rot, 398 root rot, 369, 393, 411 rust, 439 tip blight, 136 twig dieback, 212 uredinopsis pteridis, 443

Fir-fern rust, 426, 427 Fir-willow rust, balsam, 427 Fire blight

apple,83 pear,83 quince,83

Fire-chalice, 906 Firethorn, 819 Fireweed,658 Firmiana simplex, 801 FirstStep, 17 Fisheye fruit rot, apple, 359 Fishhook cactus, 590 Fishtail palm, 780 Fittonia, 671 Five-Ieaf aralia, 536 Flag smut, wheat, 460, 461 Flame azalea, leaf gall, 228 Flannel bush

crown rot, 394 stern canker, 394

Flax flowering, 671 New Zealand, 768

Fleabane, 659 Fleck

Index. 961

grapevine, 495 lily,497 orchid,500

Flo Pro IMZ, 14 Floating heart, 770

leaf smut, 456 Floral smut, fjeld pansy, 461 Floras-paintbrush, 656 Florida strangler, 668 Florida yellow-trumpet, 862 Florists smilax, 559 Flower blight

camellia, 155, 166 geranium, Color Plate SC gladiolus, 135 peony, Color Plate SB

Flower distortion, chrysanthemum, 487

Flower rot, camation, 124 Flower smut, silene, 458 Flower spot

azalea, 150-152 zinnia,98

Flower streak, narcissus, 499 Flowering almond, 541 Flowering cherry, 611 Flowering crabapple, 631 Flowering currant, 434, 637 Flowering dogwood, 648 Flowering maple, 534 Flowering quince, 821 Flowering spurge, 858 Flowering tobacco, 768 Fluazinam, 12 Fludioxonil, 12 Flusilazole, 12 Flusulfamide, 12 Flutolanil, 13 Fly speck, apple, 227 Foam-flower, 671 Foeniculum,663 Fog-fruit, 736

lippia spot anthracnose, 473

Fo1cid,7 Foliar blight, Chinese

evergreen, 142 Foliar nematode

chrysanthemum, Color Plate 6E

lily,385 nightshade, 317

Foliar symptoms, chrysanthemum, Color Plate 3E

Folicur,18 Folpan, 13, 16 Folpet,13 Foltaf,7

962 • Index

Fomes annosus, 364 applanatus, 370 connatus, 365 fomentarius, 365 fraxinophilus, 365 igniarius, 365 officinalis, 366 pini,366 pinicola, 366 rimosus, 366 robustus, 366 roseus, 366

Fomitopsis officinalüs, 366 officinalis, 366 pinicola, 366 rosea, 366

Fonganil, 13 Fongarid, 13 Fongorene, 17 Food Additives

Amendment, Delaney dause of, 3

Food Quality Protection Act, 3,30

Foot rot citrus, 393 lily,392 svveetpotato, 396

Fordo,17 Fore, 15 Forestiera, 671 Forget-me-not, 671

dovvny mildevv, 221 Formaldehyde, 13 Formalin, 13 Formec,15 Forster sentry palm, 780 Forsythia, 230, 672 Forturf, 8 Forum,lO Forvvaceren, 17 Foss,13 Fostetyl-aluminum, 13 Fotunella,727 Fouquieria, 672, 772 Four-o' dock, 672

trailing, 540 vvhite rust, 517

Foxglove, 672 anthracnose, 69 leaf spot, 280

Foxtail, mosaic potexvirus, 495

FQPA. Ä-ÄSeeÄ-Ä Food Quality Protection Act

Fragaria, 864 Frammulina velutipes, 358

Frangipani,810 Franklinia, 687 Frasera, 626 Fraxinus, 557

holotricha, 558 Freckle fruit disease, cherry,

486 Freesia, 673 Freevvay daisy, 673 French endive, bacterial rot,

91 French-mulberry, 594 Fringe-tree, 673 Fringed loosestrife, 739 Fritillaria, 673 Froelichia, 674 Frog-eye disease, soybean,

247 Frommeella dochesneae, 422 Frost injury, 330

holly, 402 Frost scorch, 465 Frostvvort, 674 Frucote,18 Fruit anthramose, tomato,

74 Fruit rot

almond,388 apple, 355 blueberry, 388 cherry, 380 citrus fruits, 371 date, 354 muskmeion, 400 peach,352,363,371,388 pear, 359 pepper, 68, 357 pumpkin, 131 squash, 131,366,367 tomato, 354, 395, 411

Fruit russet, apple, 227 Fruit spot, 226-227

dogvvood, 132 stravvberry, 250

Fuberidazole, 13 Fuchsia, 674

California, 906 rust, 439

Fuerte,l1 Fuklasin, 19 Fuligo septica, 454 Fulva mosaic potyvirus, iris,

496 Fulvia fulva, 293 Fumago vagans, 467 Fumazone, 21 Fumeisha, 17 Fumigants, defined, 1 Fungi, 35-52

Fungi imperfecti, 51 Fungi-Rhap, 9 Fungi-Rhap CU6, 9 Fungichlor, 16 Fungicide, 5--19

dasses of, 2 defined,1

Fungicide VI, 14 Funginex, 19 FungitrollI, 13 Fungo50, 18 Furadan,21 Furalaxyl, 13 Furcaspora pinicola, 142 Furcraea, 751 Furovirus, 58 Fusarex,13 Fusarium, 370

acuminatum, 366 annuum,522 avenaceum, 366 brovvn rot, 368 culmorum, 367 decembellulara, 230 equiseti, 367 forms of, 457 graminearum, 142,371 lateritium, 142, 295 moniliforme, 142, 194, 367 nivale, B, Color Plate 6A,

Color Plate 6A, 6B, 464

oxysporum, 195, 367, 368, 522,523,524,525,526

f. batatas, 367 f. cepae, 367 f. chrysanthemi, 368 f. gladioli, 368 f. lilii, 368 f. narcissi, 368 f. radicis-Iycopersici,

368 oxysporum var. radulens,

369 poae, 369 proliferatum, 369 radicis-Iycopersici,368 roseum, 369

f. cerealis, 369 semitectum, 369 solani,142,195,369,522,

526 f. cucurbitae, 369 f. phaseoli, 369 f. pisi, 369

subglutinans, 142, 194 sublutinans, 369 tabacinum, 142 vvilt, 523

Fusarium wilt asparagus, 523 camation, 524 chick-pea, 526 chili pepper, 522 chrysanthemum, 368 cowpea,526 cyc1amen, 524 hebe buxifolia, 524 lettuce, 524 mirnosa, 525 muskrnelon, 525 pea,526 radish,526 spinach,526 tomato, 524 veronica, 524 waterrnelon, 525

Fusic1adium dendriticum, 446 eriobotryae, 446 photinicola, 446 pisicola, 256 pyracanthe, 446 pyrorum, 452 robiniae, 257 saliciperdum, 446

Fusicoccum amygdali, 195 elaeagni,195 putrefaciens, 372

Gaeumannomyces graminis, 370

Gaillardia, leaf smut, 457 Galanthus, 850 Galax, 675 Galben, 5,13 Galinsoga

parviflora, 847 small flower, 847

Galium, 675 uromyces galii-californici,

443 Gall,228-232

bacterial, oleander, 95 carissa, 231 cedar,426 fescue grass, 302

Gallex,20 Galltrol-A, 20 Galtonia, 675 Gambit, 12 Ganocide, 11 Ganoderm lucidum, 370 Ganoderma

applanatum, 370 curtisii,370 lucidum, 370, 397

zonatum, 371 Ganthracnose, pea, 70 Garbanzo, 612 Garden Fungicide, 7 Gardenia, 675

canker, 204 helicotylenchus dihystera,

309 sooty mold, 467

Garlic,676 c1adiosporium allii, 262 clove rot, 384 false, 769 puccinia allii, 433 purple blotch, 173 society, 851 white rot, 405

Garlic mustard, 539 Garrya, 676, 845 Gas toxicity, 330 Gaultheria, 676

red leaf gall, 232 shallon, 837

Gaura, 677 downy rnildew, 220

Gayfeather, 733 Gaylussacia, 712 Gayophyturn, 694 Gazania, 677 Geastrumia polystigrnatis,

174 Gelatirosporium piricola,

188 Geisernium, 601 Genista, 677

leaf spot, 279 Gentian, 677 Gentiana, 677 Geoglossaceae, 46 Geotrichum

candidum, 382 citriaurantii, 382

Geranium,677,678 bacterial rot, 91 black leaf speck, 287 blossom blight, 125 cercospora brunkii, 245 chlorotic spot, 495 crinkle, 495 drechslera setariae, 260 fasciation, 82 flower blight, Color Plale

BC leaf blight, Color Plate BC leaf spot, 91, 99, 254 mosaic, 495 pestalozziella subsessilis,

273 pythium blackleg, 465

Index. 963

rhizome rot, 406 Gerbera, 679

jamesonii, 536 German iris, 717 Germander, 679 Geum,679 Geyser,lO Giant cactus, 85, 590 Giant-hyssop, 537 Giant reed, 557 Giant sequoia, 843

blight, 126 seedling blight, 126

Gibasis, 875 Gibbago trianthemae, 257 Gibberella

baccata, 142, 195 fujikuroi, 367 zeae,371

Gibberidea, heliopsidis, 107 Gibbertella, persicaria, 371 Gilia, 680 Gillardia, 674 Gillenia, 680 Ginger, wild, 680 Ginkgo, 680 Ginseng, 681

altemaraia blight, 119 powdery rnildew, 340 root rot, 393

Girdling roots, 330 Gladiolus, 681

blight, 99,127 dry rot,408 flower blight, 135 fusarium brown rot, 368 leaf spot, 284 mosaic, 495 penicillium dry rot, 384 red leaf spot, 286 scab,91 smut, 461 soft rot, 402

Gleditsia, 708 Gliocladium

roseum, 375, 386 vermoeseni, 386

Globe amaranth, 682 Globe artichoke, 556 Globe mallow, 682 Globe thistle, 683 Globe tulip, 750 Globeflower, 883 Globodera

rostochiensis, 312 tabacumtabacum, 312

Gloeocercospora inconspicua, 257 sorghi, 257

964 • Index

Gloeodes pomigena, 174 Gloeophyllum sepiarum,

376 Gloeosporium, 67, 195

allantosporum, 72 apocryptum, 72 aridum, 72 betularum, 257 foliicolum, 371 inconspicuum, 257 limetticolum, 72 melongenae, 72 mezerei, 257 peony,73 perennans, 202 piperatum, 72 quercinum, 72, 76 rhododendri, 257 thuemenii, tulipi, 72 thuemenii f. tulipi, 72 tiliae,76 ulmeum,258 ulmicolum, 257 venetum,67

Gloeotinia granigera,371 temulenta, 371

Glomerella cingulata, 68, 70, 71, 72, 74,

142,158,195,206,258, 371,372

var. vaccinii, 372 glycines, 74 gossypii,74 lindemuthianum, 70 nephrolepis, 74 piperatum, 72

Glory-bush, 683, 878 Glory-of-the-snow, 615 Glorybower, 623 Gloxinia, 683 Glutinium macrosporum,

196 Glycine max, 851 Glyodin,13 Glyrophene,14 Gnaphalium, 683 Gnomonia

caryae,75,258 comari,258 fragariae, 258 leptostyla, 74 nerviseda, 258 platani,75 quercina, 76 rubi, 143, 195 tiliae,76 ulmea, 258 veneta, 75

Gnomoniaceae, 45 Gnomoniella

coryli,259 fimbriata, 259

Goats-beard, 683 Godetia, 684

downy mildew, 220 Godfrey's meadow

nematode, com,318

Godronia cassandrae, 372 f. vaccinii, 372

Gold-dust tree, 562 Golden aster, 618 Golden calla, 594

leaf blight, 159 Golden-chain, 684 Golden-club, 684 Golden currant,

Pseudomonas ribicola, 92

Golden-eye, 684 Golden-glow, 684, 833 Golden-Iarch, 685 Golden nematode, 312 Golden net, peach, 501 Golden-pea, 876 Golden stargrass, 861 Golden stripe furovirus, oat,

499 GoldenbeIls, 672 Goldenrain-tree, 685 Goldenrod, 685

black knot, 107 black patch, 107 black scurf, 242 black spot, 242 downy mildew, 219 scab,473

Goldenseal, 686 Goldentop, 686 Goldentuft, 542 Goldthread, 686 Gomerella cingulata, 68 Gomphrena, 682 Gonatobotryum apiculatum,

259 Gooseberry, 686

dieback, 205 European powdery

mildew,342 root rot, 412 scab,474 septoria ribis, 270

Goosegrass, 655 Gopher plant, 686 Gordonia, 687

black mildew, 113 Gouania, 687

Gourd,687 Govem,12 Grading injuries, 330 Graft canker, rose, 183 Graft incompatibility, 331 Grain. Ä...Ä.See alsoÄ...Ä.

Cereal neovossia iowensis, 458 parasite, 530 stern rust, 435

Grandinia granulosa, 374 Grape, 66, 688

anthracnose, 66,469 bitter rot, 371, 377 black rot, 372, 459 blackleg, 108 blight, 168 botryotinia fuckeliana,

122 dead-arm disease, 188 downy mildew, 223 fruit rot, 357 helicotylenchus

pseudorobustus, 309 isariopsis clavispora, 270 leaf roll, 495 longidorus elongatus, 313 macrophoma sp. fruit rot,

376 mold,292 mycosphaerella angulata,

268 phaeoacremonium

aleophilum, 386 phaeoacromium

chlamydosporium, 386

phaeoacromonium inflatipes, 386

phomopsis viticola, 274 physopella ampelopsidis,

432 Pierce's disease, 102 powdery mildew, 346 pratylenchus minyus, 318 root-rot, 403 rot, 352 tylenchulidae, 314 white root rot, 403 white rot, 358 yellow mosaic, 495 yellow vein, 495

Grape-hyacinth, 689 Grapefruit, 619 Grapevein

chlosterovirus, 495 fanleaf nepovirus, 495 fleck virus, 495 stern pitting, 495

Grapevine leafroll, 495 pseudopezicula

tetraspora, 236 Graphiola phoenicis, 457 Graphiolaceae, 50 Graphioliales, 50 Graphium

sorbi,259 ulmi,519-522

Grass-of-parnassus, 693 Grass sheath nematode, 310 Grass(es),689--692

bacterial spot, 89 blind seed rot, 371 Christie' s spiral

nematode, 321 criconemoides ornatum,

306 criconemoides rusticum,

306 cyst nematode, 311 halo blight, 93 head smut, 461 heterodera iri, 311 hoplolaimus coronatus,

313 hypsoperine graminis, 313 lawn, brown patch, 66 leaf blight, 154 leaf rust, 438 leaf spot, 279 lesion nematode, 318 nematode, 302 parasite, 530 paratyenchus projectus,

318 powdery mildew, 339 pratylenchus

subpenetrans, 319 puccinia aristidae on, 433 rotylenchus cristiei, 321 rust, 438 snowmold,466 stem rust, 435 stripe smut, 461, 463 summer patch, 377 tylenchorhynchus

brevidus, 322 white tip blight, 168

Gray birch, yellow leaf blister, 234

Grayblight hard pine, 145, 296 needle cast, hard pine, 296

Gray bulb rot, tulips, 401 Gray dogwood, 649 Gray leaf mold

bentgrass, 260

redtop, 260 spike, 260

Gray leaf spot, pepper, 287 Graymold

amaryllis, 124 calendula, 124 castor bean, 122 century plant, 125 fruit rot, 353 marigold, 125 onion,353 viola, 125

Gray scab, willow, 474 Greasy blotch, carnation, 177 Green dwarf, potato, 504 Green flowers,

chrysanthemum, Color Plate 3B

Green fruit rot, almond, 405 Green mold, citrus fruit, 384 Green mold root, narcissus,

409 Green mosaic tobamovirus,

tobacco, 511 Green mottle, apple, 476 Green petal, strawberry, 106 Green ring mottle, cherry,

486 Green rot, nectarine, 379 Green-valerian, 811 Greenbrier cat-brier, 847 Greeneria, 371, 377 Greens, mustard,

anthracnose, 69 Grevillea, 693 Grindelia, 693 Griphosphaeria corticola,

196 Gromwell, 737 Ground-cherry, 693, 694

powdery mildew, 344 Ground-myrtle, 892 Ground-smoke, 694 Groundnut, 694

cercospora zebrina, 248 Groundsel, 842 Grovesiella abieticola, 209 Grovesinia pyramidalis, 251 Guar, 694

potyvirus, symptomless, 495

Guava,694 scab,474

Guayule, 695 Guernsey-lily, 768 Guignardia

aesculi, 175 bidwellii, Color Plate 4D, 4F bidwellii f. parthenocissi,

Index - 965

259 populi,283 vaccinii,373

Guignaria bidwellii, 372 Guinea-gold-vine, 703 Gum

black,886 sour, 886

Gum disease, yellow, western wheat grass, 82

Gum-tree, 660 Gummosis, 331

apricot, 476 Bradford pear, 180 cherry,486 peach, 180 sequoia, 180 sequoiadendron, 180 thornless blackberry, 180

Gummy stem blight cucumber, 149 muskmeion, 149 pumpkin, 149 summersquash,149 watermelon, 149

Gumnosporangium juniperi-virginianae, Color

Plate 2C Gumweed, 693 Gymmosporangium

bermudianum, 423 Gymnoascaceae, 43 Gymnocladus, 725 Gymnoconia

nitens, 427 peckiana, 422 peckianus, 422

Gymnosporangium asiaticum, 424 auriantiacum, 423 bethelii, 423, 426 biseptatum, 423 clavariiforme, 423 clavipes, 423 confusum, 423 cornutum, 423 currrringhamianum, 423 davisii, 423 effusum, 423 ellisii, 423 exiguum, 424 exterum, 424 floriforme, 424 fraternum, 424 globosum, 424 gracile, 424 harknessianum, 424 hyalinum, 424

966 • Index

Gymnosporangium (cant.) inconspircuum, 424 japonicum, 424 juniperi-virginianae, 424 kernianum, 425 libocedri, 425 multiporum,426 nelsonii, 423, 426 nidus-avis, 426 nootkatense, 426 photiniae, 424 speciosum, 426 trachysorum, 426 tremelloides, 426 vauqueliniae, 426

Gypsophila, 695 fasciation, 82

Hackberry, 695 downy mildew, 224 feIt fungus, 210 leaf blight, 136 Hackelia, 727

Hadrotrichum globiferum, 143

Haipen,7 Hairy mistletoe,

phoradendron villosum, 290

Hairy root, apple, 78 Haitin, 19 Halesia, 696

cristulariella moricola, 251 Halo blight

bean,95 grass, 93

Hamamelis, 903 Hamelia, 696 Hand-operated sprayers, 25 Harbinger-of-spring, 696 Hardpine

canker, 179 gray blight, 145, 296 needle cast, 296

Hardenbergia, 696 Hardwood

brown crumbly rot, 366 heart rot, 370 white heart rot, 411 white mottle rot, 370 white mottled butt rot, 376 white mottled wound rot,

361 white sapwood rot, 358

Hardwoods canker, 200, 206 heart rot, 365 white mottled wound rot,

361

Hardy orange, 696 Hares-tail, 696 Haustoria, powdery mildew,

448 Hawkbit-fall dandelion, 696 Hawksbeard, 697 Hawkweed, 697 Hawthom, 697

hendersonia crataegicola, 262

leaf blight, 141, 148 root rot, 412

Hawthom rust, cedar, 424 Hazel

dodder, 217 leaf spot, 259

Hazelnut, 698 canker, 179 hymenochaete canker, 197 leaf blister, 233 powdery mildew, 343

Head blight, wild rice, 142 Head rot

cabbage, 395 sunflower, 403

Headsmut com,458 grass, 461

Heal-all,819 Health,699 Heaptica, 701 Heart rot, 331, 364

birch,376 cacti,366 eastem hardwood, 370 hardwoods, 365 hickory, 364 locust, 366 maple, 387 oak,387 white sapwood rot, 358

Heartwood cubical rot, 366 white spongy rot, 365

Heartwood rot, conifer, 364 Heat injury, 331 Heather, 699 Hebe,699

buxifolia, 524 Hedera

anthracnose, 71 helix, 7198

Hedge parsley, 699 leaf gall, 231

Hedgenettle, 860 Hedysarum, 873 Helenium, 699 Helianthemum, 869 Helianthus, 868

tuberosus, 556 Helichrysum, 866 Helicobasidium

brebissonii, 373 corticioides, 373

Helicotylenchus dihystera, 309 erythrinae, 309 multicinctus, 309 nannus, 309 pseudorobustus, 309

Heliopsis, 700 Heliotrope, 700, 889

garden, 889 Heliotropium, 700 Helleborus niger, 616 Hellenium S., carlavirus, 495 Helminthosporium

cactivorum, 373 catenarium, 143, 259 cynodontis, 260 dictyoides, 260 erythrospilum, 260 gigantea, 143 giganteum, 260 maydis, 143 rostratum, 260 sativum, 260 sesami, 373 setariae, 260 solani, 453 sorokiniana, 260 stenacrum, 260 triseptatum, 260 tritici-repentis, 261 turcicum, 143, 374 vagans, 261 vignicola, 250

Helotiaceae, 47 Helotiales, 46 Helvellaceae, 47 Hemerocallis,641 Hemicriconemoides

biformis, 309 chitwoodi, 309 floridensis, 309 gaddi,309 wessoni, 309

Hemicycliophora arenaria, 310 brevis,310 obtusa,310 parvana, 310 similis, 310

Hemisphaeriaceae, 44 Hemlinthosporium siccans,

260 Hemlock, 700

arceuthobium laricis, 291

arceuthobium tsugense, 291

brown pocket rot, 406 needle blight, 138, 166 needle rust, 428 poison,811 pucciniastrum

hydrangeae, 439 root rot, 369 rust, 428, 439 twig canker, 191

Hemp,701 cercospora cannabina, 245 cercospora cannabis, 245

Hemp broomrape, tomatoes, 177

Hempsesbania, 701 Hempweed, climbing, 756 Hen-and-chickens,

endophyllum sempervivi, 421

Henbane, mosaic, 495 Henbit, 701 Hendersonia

concentrica, 262 crataegicola, 262 opuntiae, 236 rubi,179

Hendersonula toruloidea, 196,526

Hepatica, plasmopara pygmaea, 223

Heracleum, 702 Herb-Robert, 678 Hercules club, 552, 702 Hericium

erinaceus, 374 obietis, 406

Heritage,5 Heronsbill, 317, 702 Herpotrichia juniperi, 144 Hesperis, 702 Heterobasidion annosum,

364 Heterodera

avenae,310 cacti,310 carotae, 310 crueiferae,310 fiei,310 glycines, 310 gottingiana,310 humuli,311 iri,311 mothi,311 punctata, 311 rostochiensis, 312 schachtii, 312 tabacum, 312

trifolii,313 zeae,313

Heterosporium allii,262 echinulatum, 262 escholtziae, 262 graeile, 262 iridis, 253 omithogali, 254 syringae,144 variable, 262

Heuchera, 703 Hexachlorophene, 13 Hexaconazole, 13 Hexaferb, 12 Hexalint, 13 Hexaphene, 13 Hexasul,18 Hexathane, 19 Hexathir, 18 Hexazir,19 Hexide,13 Hiba arborvitae, 877 Hibbertia, 703 Hibiscus, 703

aIternaria aIterna ta, 238 blight, 163 blossom blight, 131 chlorotic ring spot

carmovirus, 495 esculentus, 772 hoplolaimus magnistylus,

313 kuehneola malvicola, 427 leaf spot, 91, 93, 98 palustris, 832 pseudocercospora

abelmoschi, 244 subdariffa, 832 syriacus, 833

Hickory, 704 anthracnose, 75 heart rot, 364 leaf spot, 267 sapwood wound rot, 407 wood rot, 407 wound rot, 403

Hieraeium, 697 Higginisia

hiemalis, 144 kerriae, 144

Highbush, leaf spot, 257, 276 HiItavaz,8 Hinosan,l1 Hippeastrum, 542, 705

mosaic potyvirus, 496 Hirshioporus abietinus, 398 Hizarocin, 9 Hoarhound, 705

Index - 967

Hoary-tick clover, 705 black rot, 361

Hoe end sprayer, 26 Hollow heart, 331 Holly

American, 705 black mildew, 112 black spot, 267 blight, 159 canker, 195 Chinese, 705 cylindrocladium

avesiculatum, 252 English, 705 feIt fungus, 210 frost injury, 402 Japanese, 705 leaf spot, 276 osmanthus, 707 West Indian, 707

Holly fern, 665 Holly oak, criconemoides

annulatum, 306 Hollyhock, 706

anthracnose, 70 cercospora althaeina, 244 endophyllum

tuberculatum, 421 mosaic, 496 phoma exigna, 241 phyllosticta Ithaeina, 275 rust, 437 seedling blight, 70

Holodiscus, 707 witches' broom, 496

Homalocladium, 828 Homalomena, 707 Honesty, 707 Honey locust, 708

linospora gleditschiae, 264 Honey plant, 708 Honeylocust, canker, 212 Honeysuckle, 708

bush,646 kabatia lonicerae, 263 kabatia periclymeni, 264 lasiobotrys ionicerae, 263

Hop, 709 carlavirus, 496 latent carlavirus, 496 mildew,345 mosaic carlavirus, 496

Hop-hornbeam, 709 Hop-tree, 710 Hope cyst nematode, bean,

311 Hoplolaimus

coronatus, 313 galeatus,313

968 • Index

Hoplolaimus (cont.) magnistylus, 313 uniformis, 313

Hopperburn, 331 Hordeivirus, 58 Horizon,18 Hormotheca rubicola, 287 Hornbeam, 710

bark canker, 204 leaf spot, 259

Horse-balm, 626 Horse chestnut, 710

bleeding canker, 206 leaf blotch, 175 uncinula flexuosa, 346

Horse-gentian, 711 Horse-mint, 758 Horse purslane, 711

leaf spot, 257 Horseradish, 711

ascochyta armoraciae, 241 cercospora armoraciae,

244 leaf spot, 98 pale leaf spot, 280 virescence, 106

Hose-end sprayers, 26 Hosta,712

anthracnose, 70 Hostathion, 22 Hounds-tongue, 638 Houseleek, 842

endophyllum sempervivi, 421

Houstonia, 712 Howeia, 780 Hoya,712 Huckleberry, 712

ophiodothella vaccinii, 271

rust, 439 Huisache, 713 Humulus, 709 Husk-tomato, 693 Hyacinth, 713

black rot, 405 botrytis blight, 127 Dutch, yellow rot, 100 mosaic potyvirus, 496,

500 ring disease, 307 rot, 100 yellows, rot, 100

Hyacinth bean, 649 Hyalopsora

aspidiotus, 426 cheilanthus, 426 polypodii,427

Hyaminc,20

Hybrigeminivirus,59 Hydnaceae,50 Hydnum

abietis, 406 erinaceus, 374 septentrionale,406

Hydrangea, 713 carlavirus, 496 leaf spot, 276 phyllody, Color Plate 3e,

496 ring spot potexvirus, 496

Hydrastis, 686 Hydraulic sprayers, 23 Hydrilla,714

blight,l64 Hydrophyllum,714 Hydroxyisoxazole,14 Hydroxyquinoline sulfate,

14 Hylocereus, 769 Hymenocallis, 854 Hymenochaete

agglutinans, 197 canker, 197

Hymenogastrales, 50 Hymenopappus,714 Hypdrophyllium leaf spot,

283 Hypericum, 836 Hyphochytriales, 37 Hyphodontia aspera, root

rot, 374 Hypocreales,44 Hypoderma

desmazierii, 296 hedgecockü, 296 lethale, 145 lethali, 296 robustum, 296

Hypodermella abietis-concoloris, 144,296 concolor, 296 laricis, 145 nervata, 297

Hypomyces ipomoeae, 145 solani, 369

Hyponectria buxi, 145 Hypoxis, 861 Hypoxylon

canker, 198 mammatum, 198

Hypsizgus ulmarius, 395 Hypsoperine graminis, 313 Hyssop,714

giant,537 Hyssopus,714 Hysteriaceae,44

Hyzole,14

!ce plant, 714 wilt, 527

Idaeovirus, 59 Idriella lunata, 374 Idrolene, 15 Ilarvirus,59 Ilavirus

asparagus, 477 spinach, 508

Ilberis, 597 Ilex

cuscuta exaltata, 217 glabra,716 verticillata, 902 vomitoria, 905

Illicium floridanum, 546 lliosporium malifoliorum,

262 Imazalil, 14 lmidazole, 14,19 lmidazoline, 13 Impala,14 Impatiens, 715

fascia tion, 82 necrotic spot tospovirus,

496 potexvirus, 496

Incense cedar, 715 Incense cedar mistletoe,

phoradendron libocedri, 290

Indar,12 India-hawthorn, 715 Indian cucumber-root, 716 Indian-cup, 846 Indian grass, 716 Indian lettuce, 760 Indian mallow, 534 Indian-mulberry, 760 Indian paint fungus, conifer,

364 Indian paintbrush, 778 Indian physic, 680 Indigo, 716

false, 566 Indigobush,543, 716 Indigofera, 716

ravenelia indigoferae, 441 Inflorescence blight, maple,

132 Inflorescence smut,

osmunda fern, 458 Inkspot

bulbous iris, 149 cottonwood, 248 lachenalia, 149 montbretia, 149

Inkberry,716 Inonotus

dryadeus, 397 hispidos, 397 tomentosus, 375,397

Inorganic salt, 20 Integrated pest

management, 30 Internal cork, sweet potato,

510 Interrupted fern, 666 Inula,716 Ionicera, 498 Iplodia tumefaciens, 199 IPM program, pest

management, basic techniques,30

Ipomoea, 760 batatas, 871

Ipomovirus, 59 Iprodione, 14 Irene araliae, 111 Irene calastroma, 111 Irene perseae, 111 Irenina manca, 111 Irenopsis

cryptocarpa, 113 martiniana, 113

Iresine, 717 Iris

aphelenchoides parietinus, 304

bacterial rot, 91 basal rot, 367 black rot, 405 botrytis crown rot, 353 bulbous, 717 didymellina poecilospora,

254 ditylenchus iridis, 308 fulva mosaic potyvirus,

496 ixia mosaic, 496 leaf spot, 253, 265 mold mosaic potyvirus,

496 mosaic, 496 mosaic potyvirus, 496 rhizomatous, 717 rust, 437 scorch,440

Iron deficiency, 331 chrysanthemum, 410

Ironweed, 718 yellow, 536

Ironwood, 709 Irpex lacteus, 375 Isaria

clonostachoides, 375

rot, 375 Isariopsis

clavispora, muscadine, 270

griseola, 263 Isobac,13 Isthrniella

abietis, 294 faulii, 294

Italian cypress, macrophoma cupressi, 199

Italian prune, canker, 190 Italian ring spot

caulimovirus, carnation, 482

Itchgrass, 718 blight,135 leaf spot, 135

Itersonilia, 146 perplexans, 146

Ivesia,718 Ivy

Boston, 718 English, 100,7198 Swedish, 866

Ivy-arum, 817 Ixia,719

mosaic, 496 Ixora, 719

Jacaranda,720 Jack-bean,720 Jack-in-the-pulpit, 720

blight, 128 rust, Color Plate 7A, 7B, 7C,

7D Jack pine, needle cast, 295,

296 Jacobinia, 720 Jacobs-Iadder,811 Jacquinia,721 J amesia, 721 Japanese andromeda, 802 Japanese anemone, 545 Japanese flowering cherry,

611 Japanese holly, 705 Japanese honeysuckle, twig

blight, 156 Japanese lawn grass, 908 Japanese maple

canker, 182 dieback, 182

Japanese persirnrnon leaf blotch, 176 soft rot, 384 witches broom, 106

Japanese plum-yew, 608 Japanese quince, 821

Index - 969

Japanese spurge, 778 Jasmine, 721

blossom blight, 131 confederate, 627 scab,471 winter,230

Jasminum, 721 Jatropha, 721 Java, black rot, 363 Javanese root-knot

nematode, peach, 316 Jcquemontia, 720 Jeffrey pine, needle cast, 295 Jerusalem artichoke, 556 Jerusalem-cherry,721 Jetbead, 722 Job's-tears,722 Joe-pye weed, 661 Johnsongrass, 722

mosaic potyvirus, 496 Jointvetch, northern, 536 Jointweed, 722

rust, 438 Jojoba, 722 Jolt,22 Jonk,lO Jonquil,765 Joseph-coat, 542 Joshua-tree, 906 Judas-tree, 825 Juglans, 895 Jujube, 723 Junghuhnia luteoalba, 398 Juniper, 723

branch dieback, 192 canker, 180 gall rust, 423 gyrnnosporangium

asia ticum, 424 bethelii, 426 c1avariiforme, 423 davisii, 423 exiguum, 424 harknessianum, 424 inconspircuum, 424 japonicum, 424 kernianum, 425 multiporurn, 426 nelsonii, 423, 426 speciosum, 426 tremelloides, 426

lophoderrniurn juniperinum, 297

nursery blight, 156 witches' broom, 424, 426

Juniper rnistletoe, phoradendron juniperinurn, 290

Juniperus, 723

970 • Index

Jupiters-beard, 889 Jussiaea, 899

K-Tea,9 Kabatia

lonicerae, 263 periclymeni, 264

Kabatina juniperi, 198 Kageneckia,724 Kalanchoe, 725

top-spotting badnavirus, 497

wilt,86 Kaie, 588 Kaligreen, 17 Kalmia, 762 Karamate, 15 Kasugamycin,14

hydrochloride, 14 Kasumin,14 Kayafume, 16 Keen,14 Kellermannia

anomala, 146 sisyrinchi, 146

Kemate,l1 Kenaf,703 Kenolex,17 Kentia, 780 Kentucky bluegrass

rot, 369 trechispora alnicola,

227 Kentucky coffee-tree, 725 Kerria,725

blight,l44 blumeriella kerriae, 249 twig blight, 156

Kidney bean, 568 bacterial wilt, 82 cruenta, 269 seed mold, 287 zonate leaf spot, 241

Kidney vetch, 725 Kimono, 17 Kiwi,725

canker,93 root-knot nematode, 316

Kluyveromyces marxianus var. marxianus, 375

Knapsack sprayer, 25, 26 Kniphofia, 726 Knockmate, 12 Knot, olive, 95 Knotroot, bristlegrass, 121,

726 Koban, 11 Kobu,16 Kobuto!, 16

Kochia,726 Kodiak,5 Koelreuteria, 685 Kohl-rabi, 588 Kohleria, 726 Kolklwitzia, 571 KOP300,9 Kopfume,20 Kresoxim-methyl,14 Krigia,726 Kroma-Clor, 7 Kudzu,726 Kuehneola

malvicola, 427 urehinis, 427

Kuhnia, 727 Kumquat, 727 Kumulus 5, 18 Kunkelia nitens, 427 Kutilakesa pironii, 230 Kypman80, 15 Kypzin,19

Labilite, 15 Laboulbeniales, 46 Labrador-tea, 730

chrysomyxa ledi var. groenlandici, 415

Labrella aspidistrae, 146 Laburnum, 684

mosaic,497 stem canker, 192

Laceflower, blue, wilt, 527 Lachenalia, 598

ink spot, 149 Lachnellula

agassizii, 190 pseudotsuga, 190 resinaria, 190 subtilissima, 190 wilkommii,190 willkommii, 190, 198

Lactuca, 731 sativa, 606 serriota, 606

Lady fern, 665 Ladys-fingers, 725 Laestadia asarifolia, 278 Laetiporus sulphureus, 397,

464 Laetisaria fuciformis, 359 Lagenaria, 687 Lagenidiales, 38 Lagerstroemia, 632 Laitane,l1 Lalviscus, blight, 168 Lamarckia, 686 Laminum, 701 Lamium,727

Land-grant institutions, 909-910

Lannate,22 Lanox,22 Lanox 90, 22 Lantana, 727

black mildew, 113 Lantern, Chinese, 614 Lappula, 727 Larch, 190, 728

blight, 145 hypodermella laricis, 296 rust, 428

Larch-willow rust, 428 Large crabgrass, 646 Largurus, 696 Larix,728 Larkspur, 642, 727

diaporthe blight, 137 Larrea, 633 Larvacide, 8 Laser, 15 Lasiobotrys ionicerae, 263 Lasiodiplodia, theobromae,

139,140,180,192,352, 363,375

Late blight, 160 peony, 125 potato, Color Plate Sc, 161 tomato, 160

Late leaf rust, raspberry, 439 Lathyrus,871 Laure!, 728

cherry,611 hemicycliophora brevis,

310 Laurestinus, 729 Laurus, 728 Lavandula, 729 Lavatera, 729 Lavender, 729 Lawn, 689-692. Ä-ÄSee

alsokÄ Lawn grass Lawngrass

anthracnose, 69 brown patch, 66 brown stripe, 282 char spot, 283 snowmold, 466

Lawn-Ieaf, 644 Layia,729 Leadplant, 543, 716 Leadtree, 729 Leafblight

arborvitae, 138 aspidistra, 146 bacterial, bird's-nest fern,

90 bird's nest fern, 91

blue-eyed grass, 146 boxwood,l72 buffelgrass, 164 calla, 159 cherry,l44 clematis, 156 clover, 152 corn,143 creeping bentgrass, 143,

164 erythronium, 132 fig,152 geranium, Color Plate BC grass, 152, 154 hackberry, 136 hawthorn, 141, 148 lilac, 144 linden, 130 lupine, 143 May-apple, 169 mesquite, 166 mountain-laurel, 157 osage-orange, 170 pear, 141 poplar, 147 salsify, 170 Spanish moss, 142 strawberry, 136, 157 trurnpetvine, 131 vetch,120 viburnum, 148 yucca, 146

Leaf blister, 232-234 California buckeye, 232 California chinquapin, 233 Christrnas fern, 234 elm, 234 hazelnut, 233 maple, 232 oak,232 poplar, 234 western maple, 232

Leafblotch Berrnuda grass, 260 bluegrass, 282 horse-chestnut, 175 Japanese persirnrnon, 176 lilac, 174 pecan, 175 peony, 174 pomegranate, 176 potato, 173

Leaf cast, boxwood, 145 Leaf cur!, 232-234

American hornbeam, 232 cherry, 234 peach,233,233 peony, 503 red alder, 234

strawberry, 509 Leaf cur! bigeminivirus

cotton, 492 melon, 498 squash,508

Leaf curlluteovirus, raspberry, 506

Leaf fleck corn,492 redtop, 266

Leaf gall anemone, 231 azalea, 228, 229 camellia, 228 flame azalea, 228 hedge parsley, 231 rhododendron, 228,230 rhododendrum, 228 thalictrum, 231

Leaf mold tomatoes, 293 yucca, 294

Leaf mottle nepovirus, blueberry, 481

Leaf nematode, chrysanthemum, 389

Leaf roll grape, 495 grapevine, 495 potato, 504, 514 strawberry, 509

Leaf rolling mosaic, potato, 505

Leaf rot, African violet, 124 Leaf rust

bluegrass, 437 rose, phragrnidiurn

mucronatum, 430 Leafscald, sugarcane, 97 Leaf scorch, 234-237

blueberry, 481 iris, 440

Leaf smut auturnn crocus, 461 dahlia, 457 epilobiurn, 456 floating heart, 456 gaillardia, 457 starflower, 460

Leaf spot, 237-288, 261 agrimony, 276 angular cucurbits, 93

muskrnelon, 92 strawberry, 99 watermelon, 92

arbutus menziesii, 254 barberry, 90 basiI, 91, 96 bentgrass, 283, 285

Index - 971

bird's nest fern, 91 blackberry, 285 bloodroot, 276 blueberry, 276 bluegrass, 285 Boston ivy, Color Plate 4D,

4F,259 bromelia, 260 cabbage, 91,98,239 California poppy, 262 California sycamore, 288 calla, 276 camellia, 286 cauliflower, 91 celery, 93 cherry, 239 China aster, 283, 287 Chinese cabbage, 91 chrysanthemum, 252,283 clematis, 252 clovers, 279 columbine, 244 compass plant, 96 crucifers, 91 cucumber, 288 cucurbits, 287 cyclamen, 284 daphne,257 dogwood, 284 dracaena, Color Plate

7E,88,276 echeveria, 287 elm, 257, 283 English ivy, 100, 276 farkleberry, 276 fern, 252 fescue grass, 285 foxglove, 280 genista, 279 geraniurn, 99, 254 gladiolus, 284 grass, 279 hazel, 259 hibiscus, 93, 98 hibisucs, 91 highbush, 257 holly, 276 hornbeam, 259 horse purslane, 257 horse-radish, 98 hydrangea, 276 hypdrophyllium, 283 iris, 253, 265 itchgrass, 135 kidney bean, 287 lettuce, 102 leucothoe axillaris, 136 magnolia, 276 maple,89,276,283

972 • Index

Leaf spot (cant.) marigold, 96, 285 mountain-ash, 259 mountain-Iaurel, 276, 277 orchid,68 orchids,68 palms,256 parsnip,280 peanut, 282 pecan,267 pistachio, 285 poplar, 285 primrose,92,280 rabbit-eye blueberry, 257 radish, 98, 102 ragweed, 274 raspberry, 286 redtop, 260 rhododendron, 91, 255,

257,276 ribbon-grass, 259 Russian wildrye, 261, 285 ryegrass, 285 sesame,92 soybean,279 star-of-Bethlehem, 254 strangler fig, 274 sunflower, 93 sweet com, 90 sweet gum, 256 sweetpotato,283 tobacco, 281 tomato, 287 trichovirus, apple, 476 tulip-tree, 281 tupelo,278 turnip, 91, 102 viburnum, 96 violet,119 watermeion, 284 West Indian holly, 163 wild rice, 96 willow, 253 wintergreen, 282 wisteria, 276 witch-hazel, 259, 276 yucca, 256 zinnia,98,101 zonate,26O

Leafy spurge, 858 Leak

root rot, 399 watery leak, 399

Leather rot, strawberry, 392 Leatherleaf, 608, 665

postharvest decay, 361, 401

Leatherwood,639, 729 Lebbek,730

sphaerophragmiuym acaciae, 442

Ledum, 730 arbutus menziesü, 251 red leaf gall, 232 spot anthracnose, 471

Leeacoccinea, 707 Leek

cladiosporium allü, 262 longidorus maximus, 313

Legacy; 13 Legumes, powdery mildew,

340 Leiophyllum, 838 Lembosia

caetorum, 112 coccolobae, 112 illicücola, 112 rugispora, 112

Lembosina quercina, 268 Lemon, 619, 730

hernicycliophora arenaria, 310

Lemon grass, 730 rust, 437

Lemon-verbena,736 Lens,730 Lentil,730

anthracnose, 71 stern anthracnose, 71

Lentinus lepideus, 376 tigrinus, 376

Lenzites betulina, 376 saepiaria, 376

Leonotis,736 Leontodon, 696 Leonurus, 761 Leopards-bane, 649 Lepidium, 797 Leprosis rhabdovirus, citrus,

488 Leptographium

abietinum, 411 penicillata, 411 procera,411 wagenerii, 411

Leptornitales, 38 Leptospermum,730 Leptosphaeria

coniothyrium, 198 heliopsidis, 107 korrae, 147,376 lindquistii, 388 maculans, 109 thomasiana, 147

Leptostromataceae,51 Leptostromella elastica, 264

Leptothyrella liquidambaris, 264

Leptothyrium californicum,264 dryinum, 264 periclymeni, 264

Lesan, 12 Lesco4,15 Lesion nematode

boxwood,319 grass, 318 potato, 318

Lesions nematode, zinnia, 318

Lespedeza, 730 Lethal yellowing, coconut

palm, Color Plate lA, IB

Lettuce, 731 anthracnose, 76 baeterial wilt, 102 big vein, 497 boron deficiency, 328 corky rot, 97 downy mildew, 219 drop,404 fusarium wilt, 524 Indian, 760 infectious yellows

clostervirus, 497 leaf spot, 102 longidorus maximus, 313 Louisiana lettuce disease,

96 marginal blight, 91 mosaic potyvirus, 497 olipidium brassicae, 382 pythium uncinulatum, 400 Rio Grande disease, 103 septoria leaf spot, 284 speckles mottle

umbravirus, 497 stern rot, 404 wilt, 524, 527

Leucaena,729 Leuchtenbergia principis,

590 Leucojum, 732 Leucospermum, 732

blight, 129 Leucostoma

cineta, 198,213 persooflÜ, 213

Leucothoe, 732 axillaris, 136, 342 black spot, 110 pestalotia leucothoes, 272

Leuycostoma kunzei, 189 Leveillula taurica, 340, 341

Lewisia, 732 Liatris,733 Libocedrus,715 Lichens, 288 Lightning injury, 332 Ligustrum, 818

leaf spot, 256 Lilac, 733

arabis mosaic nepovirus, 477

blight, 168 citrus blight, 163 leafblight,l44 leafblotch,174 mottle carlavirus, 497 ring spot carlavirus, 497 shoot blight, 158 witches' broom

phytoplasma, 497 Lilium, 734 Lily, 734

African, 537 basal rot, 368 botrytis blight, 126 color adding, 497 color removing, 497 fleck,497 foliar nematode, 385 foot rot, 392 latent mosaic virus, Color

Plate 1e, 1D mosaic, 497 mottle potyvirus, 497 ring spot, 497 rosette, 497 stern rot, 392 symptomless carlavirus,

497 Lily-of-the-valley, 735 Lima bean, 568

anthracnose, 71 bacterial wilt, 82 downy mildew, 222 dry root rot, 369 microsphaera euphorbiae,

341 pod blight, 137 scab,472 stern anthracnose, 71 web blight, 152 yeast spot, 381

Limacinola anomala, 110 Limb light, fig, 133 Lime, 619

anthracnose, 72 hydra ted, copper sulfate,

13 Lime-induced chlorosis, 332 Lime sulfur, 14

Limnophila, 552 Limonium, 861 Linaria, 735 Linden, 735

anthracnose, 76 bleeding canker, 206 fumago vagans, 467 leaf blight, 130 spot anthracnose, 473

Lindera, 854 Linepattern

pelargonium, 503 plum,503

Linnaea,736 Linospora

gleditschiae, 264 tetraspora, 147

Linum,671 Lions-ear, 736 Lippia, 736

black mildew, 113 prospodium lippiae, 433 spot anthracnose, 473

Lipstick vine, 737 Liquidambar, 870 Liriodendron, 884 Lirula

abietis-concoloris, 144,296 macrospora, 297 nervata, 297

Lithocarpus, 737 Lithophragma, 737 Lithops, 863 Lithospermum, 737 Litsea, 737, 812 Little cherry, 486 Little leaf, 332 Little peach, 501 Littleseed alfalfa, dodder,

218 Lkythrum, 742 Lobelia, 737 Loblolly-bay, 687 Loblolly pine, blight, 140,

142 Lobularia, 869 Locust, 738

cladosporium epiphyllum, 248

heart rot, 366 honey, 708 witches' broom, 498

Lodgepole pine arceuthobium

Americanum, 291 brown rot, 386 canker, 179 cronartium stalactiforme,

420

Index - 973

needle cast, 295, 296 Loganberry, dwarf, 498 Lomatium, 738 Lonacol,19 London plane, 807

canker, 181, 194 Longidorus

elongatus,313 maximus, 313

Lonicera, 708 infectious variegation,

498 Loose kernel smut, 458 Loosestrife, 739

fringed,739 Lophiostomataceae, 45 Lophodermella,147

concolor, 296 Lophodermium

durilabrum, 297 filiforme, 297 juniperinum, 297 nitens, 297 piceae, 297 pinastri, 297 schweinitzii, 265 seditiosum, 297

Loquat, 739 scab,446

Lotus, 740, 882 Louisiana broomrape,

tomato, 177 Louisiana lettuce disease, 96 Lousewort, 904 Love-lies-bleeding, 542 Lowland white fir, black

mildew,l11 Lucuma, 740 Ludwigia,740 Luffa, 687 Lunaria, 707 Lupine, 740

downy mildew, 222 leaf blight, 143 puccinia andropogonis,

433 seed smut, 459 seedling blight, 165 stern rot, 400 wilt, 527

Lupinus,740 Lustr 277, 10 Luteovirus, 59

bean,479 beet, 481 solanum, 508 western yellows, 481

Luzula,904 Lychee,741

974 • Index

Lychnis, 741 ustilago violacea, 463

Lycium, 741 halimifolium, 751

Lycoperdales, 51 Lycopersicon, 878 Lycopus, 897 Lycoris, 742 Lyonia, 742

black mildew, 110 tar spot, 281

Lysiloma, 742 Lysimachia, 739

M-Diphar, 15 Maackia, 742 Macadamia, 743 Machlomovirus, 59 Maclura, 776 Macluravirus, 59 Macrophoma

candollei, 199,265 cupressi, 199 phoradendron, 199 sp. fruit rot, 376 turnefaciens, 199

Macrophomina phaseolina, 377

Madrona, spot anthracnose, 472

Madrone, 743 Magnate,14 Magnesium deficiency,

332 Magnetic 70, 18 Magnolia, 743

alternaria alternata, 238 bacterial rot, 91 black leaf spot, 267 black mildew, 111, 113 botrytis petal spot, 123 leaf spot, 91, 276 mycosphaerella milleri,

246 scab,471

Magnoporthe poae, 377 Mahogany,744

spot anthracnose, 473 Mahonia,744

cumminsiella mirabilissima, 421

Maianthemum, 745 Maidenhair fern, 665 Maidenhair-tree, 680 Maize

chlorotic dwarf waikavirus, 498

chlorotic mottle machlovirus, 498

rayado fino marafivirus, 498

stripe tenuivirus, 498 stunt, 498 white line mosaic, 498

Majestin,7 Makoyana,590 Malachite, 8 Malachra, 745 Malacothrix, 745 Malampsora

abieti-capraearum,427 Malanconidiaceae, 45 Maleberry, 742 Mallotus, 745 Mallow, 745

anthracnose, 70 checker, 609 garden, 745 Indian, 534 seedling blight, 70

Malus, 631 sylvestris, 547-550

Malva, 745 vein clearing potyvirus,

498 Malvastrum, 745 Malvaviscus, 746

kuehneola malvicola, 427 Mamianiella

coryli,259 fimbriata, 259

Mammilaria, 590 Mancozeb, 15 Maneb,15 Maneba,15 Manesam,15 Manex, 15 Manex80, 15 Manfreda, 746 Manganese deficiency, 332 Mangifera, 746 Mango, 746

scab,472 Mangrove, 746 Manicure,8 Manihot, 746 Manioc, 746 Manzanita, 747

arbutus menziesii, 251 witches' broom, 230

Manzate 200, 15 Maple, 747

anthracnose, 71, 72 bark canker, 191 bark patch, 178 basal canker, 208 bleeding canker, 206 brown leaf blister, 234

canker, 211, 361 climacoden

septentrionalis, 406 cristulariella depraedans,

251 cristulariella moricola, 251 flowering, 534 heart rot, 387 inflorescence blight, 132 Japanese, 182 leaf blister, 232 leaf scorch, 102 leaf spot, 89, 276, 283 meloidogyne ovalis, 316 phloeospora aceris, 274 red brown heart, 397 sapwood rot, 395 speckeled tar spot, 281 stereum fasciaturn, 407 tar spot, 281, 295 twig blight, 156 uncinula circinata, 346 white mottle rot, 365, 370,

397 white spongy heart rot,

397 wilt, 528-529 wood rot, 407 wound rot, 395, 403

Marafivirus, 59 Marah,749 Maranta,555,749 Marasmiellus pigmentatus,

382 Marasmius oreades, 226 Maravalia sapetae, 441 Marbleseed, 775 Marginal blight, lettuce, 91 Marginal browning, 332 Marguerite, 749 Marigold, 749

alternaria tagetica, 240 blight,119 corn,629 criconemoides mutabile,

306 gray mold, 125 leaf spot, 96, 285 nematodes, 302 paratylenchus

micoletzkyi, 317 pot, 592

Mariposa-lily, 750 Marjoram, sweet, 776 Marrubium, 705 Marsh grass, ash rust, 439 Marsh-marigold, 750 Marssonina

daphnes, 257, 266

delastrei, 266 fraxini, 266 juglandis,74 panattoniana, 76 populi, 266 rhabdospora, 266 rosae, 266 tremulae, 266 truncatula, 266

Martricaria, 751 Massaria platani, 199 Mastigosporium

rubricosum, 266 Matelea, 751 Matricaria, 751 Matrimony-vine, 751 Matthiola, 863 Maurandya, 751 Mauritius-hemp, 751 Maxim,12 May-apple, 751 May-apple, leaf blight, 169 Mayflower, 658 MB-50,20 MB-80,20 Meadow-beauty; 752, 826 Meadow parsnip, 908 Meadow-rue, 752 Meadowsweet, 752, 855

triphragmium ulmariae, 442

MeBr,16 Mechanical injury, from

threshing, baldhead, 326

Medeola, 716 Medicago, 752

root rot, 163 Medlar, 752 Mefonaxam,15 Melaleuca, 752 Melampsora

abietis-canadensis, 428

arctica, 428 bigelowii, 428 far!owii, 428 hypericorum, 428 larici-populina, 428 medusae,414,428 medusae f. sp. deltoidae,

428 occidentialis, 428 paradoxa, 428 ribesii-purpureae, 428

Melampsoraceae, 49 Melampsorella

caryophyllacearum, 428

cerastii, 428 Melampsoridium

betulinum, 429 Melanconiaceae,52 Melanconiales, 52 Melanconis juglandis, 199 Melanconium

fuligineum, 377 pandani, 266

Melanospora multiformis, 293

Melanthium, 586 Melasmia

falcata, 267 menziesiae, 267

Melia, 613 Melilotus, 753 Meliola

amphitricha, 113 bidentata, 113 camelliae, 113 cookeana, 113 cryptocarpa, 113 lippiae, 113 magnoliae, 113 martiana, 113 nidulans, 113 palmicola, 113 tenuis, 113 wrightii, 112

Meliolales, 43 Melissa, 565 Melochia, 826 Meloderma desmazierii, 296 Melogrammataceae,46 Meloidodera, floridensis,

314 Meloidogyne

arenaria, 315 arenaria thamesii, 315 chitwoodi, 315 graminicola, 315 incognita, 316 javanica, 316 ovalis, 316

Melon, 753 anthracnose, 69 leaf cur! bigeminivirus,

498 necrotic spot carmovirus,

498 root rot, 348

Melothria, 754 Melprex,11 Meltatox, 11 Menispermum, 760 Mentha, 757 Mentzelia, 754

coleosporium mentzeliae,

416 Menziesia, 754

Index. 975

Meolilotus alba, oidium, 342 Mepronil, 15 Mercuran, 18 Mercury toxicity, 332 Meria laricis, 200 Merismodes ochracea, 210 Merliniusjoctus, 321 Merpan,7 Merry-bells, 888 Mertect,18 Mertensia, 755 Mescalbean, 851 Mesembryanthemum, 755 Mesocriconema xenoplax,

306 Mesopsora hypericorum,

428 Mespilus, 752 Mesquite, 755

erysiphe taurica, 341 ganoderma zonatum, 371 leaf blight, 166 phoradendron

californicum, 289 uncinula prosopidis, 347

Metalaxyl, 15 Metam-sodium, 15 Methanal, 13 Metho-O-Gas, 16 Methomex, 22 Methomyl, 22 Methyl bromide, 16 Methyl isothiocyanate, 22 Methylmetiram, 16 Metildiene K, 15 Metiram,16 Metox-900,22 Mezene,19 Michelia figo, 566 Microbac, 20 Micrococcus amylovorus, 52 Microdochium

nivale,464 panattonianum,76

Micromeria, 905 Micropeltaceae, 44 Micropeltis

alabamensis, 267 viburni, 148

Microspaeropsis concentrica, 250

Microsphaera diffusa, 341 euphorbiae, 341 grossulariae, 342 penicillata, 341, 342 pulchra, 342

976 • Index

Microstroma juglandis, 267 Microthyriaceae, 44 Microthyriales, 44 Microthyriella

cuticulosa, 267 rubi,227

Midge, nectria rigidiuscula, 230

Midleaf necrosis, cherry, 486 Mignonette, 755

cercospora resedae, 247 Mikania, 756 MiI-Col,l1 Milcurb,lO Mildane, 11 Mildew. Ä...ÄSee alsoÄ..Ä

Powdery mildew American gooseberry, 345 begonia, 342 citrus, 342 hop,345 peach,345 rose,345

Mildin, 12 Mildothane, 18 Milesina

fructuosa, 429 laeviuscula, 429 marginalis, 429 pycnograndis, 429

Milk thistle, 755 Milkvine, 893 Milkwort, 756 Miller bill. Ä...ÄSeeÄ..Ä

Public Law 518 Mimosa, 756 fusarium wilt, 525 ravenelia dysocarpae, 441 striped chlorosis

badnavirus, 498 twig canker, 195 wilt, 525

Mimulus, 756 Ming,553 Minilinia johnsonii, 148 Mint, 757

anthracnose, 474 paratylenchus

macrophallus, 317 powdery mildew, 340

Mirabilis, 672 mosaic caulimovirus, 499

Mirage, 17 Miscanthus, 757 Mist blowers, 23 Mist sprayers, 23 Mistletoe, 288-291, 311, 757

dwarf,758 hymenochaete canker, 197

macrophoma phoradendron, 199

uredo phoradendri, 443 Mitchella, 784 Mitella, 576 Mitrosal,7 Mixing, of chemicals, 28 Mobeedazim, 7 Mobilawn, 21 Mocap,22 Mock-cucumber, 758 Mock-orange, 758 Mock-strawberry, 758

downy mildew, 222 frommeella dochesneae,

422 Mold, 291-294

grapes, 292 strawberries, 292 sweetpotatoes, 291

Mold mosaic potyvirus, iris, 496

Mollisiaceae, 46 Molucella, 574

Molybdenum toxicity, 333 Mombin, 856

scab,474 Momordica, 565 Monarda, 758 Monardella, 759 Monceran, 17 Moneses, 759

chrysomyxa moneses, 415 Moneywort, 739 Moniliaceae,52 Moniliales, 52 Monilinia

azalear, 148 fructicola, Color Plate 8E,

148 fructicula, 378 laxa, 148,379 rhododendri, 148

Monilochaetes infuscans, 379,453

Monkey-flower, 756 Monkey-puzzle, 553 Monkshood, 759

vine, 759 Monoblepharidales, 37 Monochaetia

mali,200 monochaeta, 267

Monogeminivirus, 59 Monographella

nivales, 464 opuntiae, 76

Monosporascus cannonballus, 380

Monstera, 760 Montana X potexvirus, 516 Montbretia, 883

ink spot, 149 Montia,760 Moonflower, 760 Moonseed, 760 Mora, cherry, 486 Morea, 760 Morenoella

angustiformis, 112 quercina, 268

Morestan, 16 Morinda, 760

scab,474 Morning glory, 760

stern canker, 213 Morocide,6 Morpholine, 12 Morpholine, 19 Morrocid,6 Morus,763 Mosaic

alfalfa, 476 alfamovirus, 476 apple, 476, 514 bean, 478 beet, 481 blackberry, 481 blackeye cowpea, 481 brome grass, 482 canna, 482 cantaloupe, 494 camation, 482 cassava, 483 cauliflower, 483 celery, 485 chrysanthemum, 488 cineraria, 488 clover, 489, 491 coleus, 492 commelina, 492 com,492 cowpea,492 cucumber, 492, 493, 497,

515 currant, 493 cymbidium, 493 dahlia,493 dasheen,494 desmodium, 494 dodder,494 dogwood, 494 dwarf, naize, 498 elm,494 euonymus, 494 euphorbia, 494 fig,494 figwort, 494

foxtail, 495 geranium, 495 gladiolus, 495 henbane, 495 hippeastrum, 496 hollyhock,496 hop,496 hyacinth, 496, 500 iris,496 ixia, 496 Johnsongrass, 496 laburnum, 497 lettuce, 497 lily,497 rnirabilis, 499 muskmeion, 499 mustard, 499 nandina, 499 narcissus, 499 nasturtium,499 nothoscordum,499 oat,499 orchid,500 ornithogalum,5oo palm,501 panicum, 501 papaya, 501 pea, 501 peach,501 physalic, 503 poinsettia, 504 poplar,503 primrose, 505 quail pea, 506 radish,506 raspberry, 506 ribgrass, 507 rose, Color Plate 3D, 507 sorghum, 508 sowbane, 508 soybean, 508 sparaxis, 508 squash, Color Plate SE, 499,

508,509 stock,509 streptanthera, 510 sunfIower, 510 sweet potato, 511 teasel,511 tigridia, 511 tobacco, 511 tomato,513 mtonia, 514 turnip, 482, 515 waterneion, 515 white clover, 515 wisteria, 515

11oss,spanish, 853 11otherwort, 761

Motley dwarf, carrot, 483 110ttle

bidens, 481 carnation, 483 carrot, 483 green, apple, 476 lilac, 497 lily,497 maize, 498 pea,501 peach,502 peanut, 502 pepper, 503 plantago,504 potato,505 ranunculus, 506 strawberry,509

Mottle leaf, 333 cherry,486

Mountain andromeda, 802 Mountain ash, 761

canker, 203 dieback, 213 leaf spot, 259

Mountain ebony, 567 Mountain heath, witches'

broom,230 Mountain-heather, 761 Mountain-holly, 761 Mountain-Iaurel, 762

leaf blight, 157 leaf spot, 276 mycosphaerella colorata,

269 phyllosticta leaf spot, 277

Mountain-mahogany, 763 Mountain-mint, 763 Mountain-sorrel, 763 Mucilago spongiosa, 454 Mucor

mucedo, 380 piriforrnis, 380 racemosus, 380

Mucoraceae,41 Mucorales, 40 Mulberry, 763

bacterial blight, 94 cytospora, 253 Indian, 760 mycosphaerella mori, 270 popcorn disease, 132 twig blight, 150 twig canker, 195

Mullein, 764 Multiplier disease,

strawberry, 509 11ung bean, 570 Musa nana, 566 Muscadine

Index. 977

isariopsis clavispora, 270 mycosphaerella angulata,

268 Muscari,689 Mushroom

oyster, 764, 777 dry bubble, 529

root rot, 350, 356, 455 Musk-root, 536, 764 Muskmeion, 753

angular leafspot 92 anthracnose, 69 bacterial wilt, 88 cercospora citrullina, 245 frui t rot, 400 fusarium wilt, 525 gummy stern blight, 149 mosaic, 499 vein necrosis carlavirus,

499 wilt,525

Mustard cercosporella brassicae,

248 garlic, 539 mosaic,499

Mustard greens, 765 anthracnose, 69 white leaf spot, 279

Mycelial neck rot, onion, 353 Mycin,19 Myclobutanil, 16 Mycocentrospora

acerina,354,378 verrucosa,271

Mycodifol, 7 Mycoleptodiscus terresms,

380 Mycoplasma pathogen

coconut palm, Color Plate 1A,lB

hydrangea, Color Plate 3C Mycoshield,20 Mycosphaerella, 268, 269

angulata, 268 arachidis, 268 berkeleyi, 268 berkeleyii, 247 bolleana,268 caroliniana, 268 caryigena, 268 cerasella, 245 citri,269 citrullina,149 colorata, 269, 276 dearnessii, 171 dendroides, 175 diospyri,176 effigurata, 269

978 • Index

Mycosphaerella (cont.) fijiensis, 149 fragariae, 269 fraxinicola, 269 grossulariae, 270 hythracearum,176 juglandis, 269 laricina, 297 liriodendri, 269 louisianae, 270 macrospora, 253 melonis, 149 rnilleri, 246 mori,270 nigromaculans, 270 nyussicola, 270 opuntiae, 76 ornithogali, 254 personata, 270 pinodes, 149 porni,227 populicola, 270 prenanthis, 278 psilospora, 270 pyri,270 rabiei,149 ribis, 268, 270 rosicola, 247 rubi,285 sequoiae, 149

Mycosphaerellaceae,45 Mycosyrinx osmundae, 458 Mycovellosiella concors, 246 Myosotis, 671 Myriangiaceae, 43 Myriangiales,43 Myrica

californica, 778 carolinensis, 568 cerifera, 899 gale, 869 hernicriconemoides

wessoni, 309 Myriogenospora

atramentosa, 149 Myriophyllurn, 783 Myrotheciurn, 380 roridurn,

271,380 Myrovellosiella concors, 173 Myrtle,765 Myrtus, 765 Mystrosporiurn adustum,

149 Myxosporium

diedickii, 150 everhartii, 150

Nabac,13 Nabam,16

Nabasan,16 Nacobbis

aberrans, 317 betaiforrnis, 317 dorsalis, 317

Nacobbodera chitwoodi, 317 Naemacyclus niveus, 298 Nailhead spot, tomato, 240 Naize, dwarf mosaic

potyvirus, 498 Nanavirus,59 Nandina, 765

cercospora nandinae, 246 mosaic potexvirus, 499

Narcissus, 765 aphelenchoides subtenuis,

304 basal rot, 368 black rot, 405 chocolate spot, 499 eelworrn diseae, 307 fire, 168 flower streak, 499 mosaic potexvirus, 499 smoulder, 404 stagonospora curtisii, 237 stromatinia narcissi, 408 white mold, 280 white streak, 499 yellow strike potyvirus,

499 Nasturtiurn, 766

bacterial spot, 93 mosaic potyvirus, 499 officinale, 897

Natal-plurn, 599 Native hardhack, 855 Nebijin,12 Necrosis, raspberry, 506 Necrosis necrovirus,

tobacco, 514 Necrosis neopvirus, tomato,

514 N ecrotic fleck closterovirus,

camation,483 Necrotic leaf spot, peach, 502 Necrotic ring spot blueberry,

481 prune, 487, 506 rhododendron, 507

Necrotic rusty mottle, cherry, 486

Necrotic shock blueberry, 481

strawberry, 509 Necrotic spot carrnovirus,

melon, 498 tospovirus, impatiens, 496

Necrovirus, 59

Nectarine, 767 blossom blight, 379 brown rot, 379

Nectria canker, 208, 213 cinnabarina, 200 desmazierii, 201 ditissima, 201 fuckeliana, 201 galligena,201 haematococca, 369 ipomoeae, 145 rigidi uscula, 230

Nectriaceae, 45 Nectrioidaceae,51 Needle blight

Austrian pine, 140 balsam fir, 155 beet, 165 cryptomeria, 157 fir, 144, 157 hernlock, 138, 166 red pine, 140 redwood,149 yew, 170

Needle blister rust, pine, 416

Needle cast, 294-299, 359 balsam fir, 294, 297 blue spruce, 299 coulter, 295 Douglas fir, 298, 299 Europoean larch, 297 fir, 294, 296 hard pine, 296 jack pine, 296 lodgepole pines, 296 pine, 142, 147, 295, 297,

298 spruce, 297 terreya taxifolia, 295

Needlerust alpine fir, 414 Douglas fir, 428 hernlock,428 rnilesina laeviuscula, 429 pine, 416 spruce, 415

Nellite,21 Nelurnbo, 740 Nemacur,22 Nemagon,21 Nemaol,15 Nematanthus, 767 Nematicides, 21-22

defined, 1 Nematode galls

potato, 390 root-knot, 390

Nematodes, 61-63, 299-324, 391

digestive tract, 301 Nematospora

coryli,381 phaseoli, 381

Nematostoma occidentalis, 271

Nemispor,15 Nemopanthus, 761 Nemophila, 767 Neo Voronit, 13 Neofabraea

malicorticis, 77 perennans, 202

Neolentinus lepideus, 376 Neopeckia coulteri, 150 Neovossia iowensis, 458 Nepeta, 604 Nephis,20 Nephrolepis, 664 Nephthytis, 768

cephalosporium cinnamomeum,244

Nepovirus, 59 crimson c1over, 493

Nerine, 768 Nerium, 773 Netblotch, fescue, 260 Neuropora sitophila, 381 New Zealand flax, 768 New Zealand spinach, 768 Nicandra, 550 Nicotiana, 768

wilt, 527 Nidulariales, 51 Night-blooming cereus, 769 Nightshade, 769

foliar nematode, 317 Nigra loose smut, barley,

463 Nigrospora

cob rot, 381 oryzae, 381

Nimrod,7 Ninebark, 769 Nitrador, 11 Nitrogen

deficiency, 333 excess, 333

Nitrothal-isopropyl, 16 Nobilene,19 Nocardia vaccinii, 230 Nonparasitic diseases,

324-337 Nordox SD-45, 9 Nordox SD-50, 9 Norfolk-island-pine, 553

root rot, 361

Northem joint-vetch, 536 Northwestem apple,

anthracnose, 77 Norway maple, marssonina

truncatula, 266 Norway spruce

blight, 156 cone scales, 156

Nothanguina, 317 Nothophacidium

abietinellum, 155 Nothoscordum, 769

bivalve, 543 mosaic potyvirus, 499

Nova, 16 Nu-Zone, 14 Nuc1eorhabdovirus,59

potato, 505 sorghum, 508 sweet c1over, 510

Nummularia discreta, 203 Nuphar,898 Nurex, 18 Nursery blight, juniper, 156 Nustar,12 Nutsedge, 769

balansia cyperi, 120 cyst nematode, 311 dactylaria higginsii, 253 rice root-knot nematode,

315 rust, 434

Nymphaea, 897 Nymphoides, 770 Nyssa, 886 Nyssopsora clavellosa, 429

Oak,770 actinopelte dryina, 238 anthracnose,72,73,73,76 bark patch, 178 bleeding canker, 206 blight, 192 branch canker, 194 canker, 180, 184, 192 criconemoides teres, 306 dothiorella canker, 194 heart rot, 387 hoplolaimus coronatus,

313 laetiporus sulphureus, 464 leaf blister, 232 lembosina quercina, 268 leptothyrium

califomicum, 264 monochaetia monochaeta,

267 mycosphaerella

psilospora, 270

Index. 979

Pacific dagger nematode, 324

powdery rnildew, 344 ring spot virus, 499 sheathoid nematode, 309 shelf fungus, 464 strumella canker, 211 tanbark, 737 twig blight, 134, 140 twig canker, 208 weed-killer injury, 447 white root rot, 397 white spongy heart rot,

397 wilt, 518

Oakleaf, dahlia, 493 Oat

anthracnose, 69 black loose smut, 461 blue dwarf marafivirus,

499 covered smut, 461 crown rust, 434 downy mildew, 225 golden stripe furovirus,

499 mosaic bymovirus, 499

Oat cyst nematode, pea, 310 Occidor,7 Ocean spray, 707 Ocimum, 567 Oconee-bells, 845 Ocotillo, 672, 772 Odontoglossum, rignspot

tobamovirus, 499 Oedema,333 Oenothera, 772 Oidium

araliacearum, 342 begoniae, 342 black medic, 342 dianthi, 342 euonymus japonici, 342 meolilotus alba, 342 obductum, 342 pirinum, 342 poinsettia, 343 shrub banana, 342 snapdragons, 342 tingitaninum, 342 tomato, 343 torena, 343

Okra, 772 ascochyta abelmoschi, 241 pseudocercospora

abelmoschi,244 Olea, 773 Oleander, 773

bacterial gall, 95

980 • Index

Oleander (cont.) basal stern rot, 354 dodder, 216 scab,474

Oleo Nordox, 9 Oleocuivre, 9 Olipidium brassicae, 382 Olive, 773

cycloconium oleaginum, 252

knot, 95 pratylenchus musicola,

318 Russian, 653

Olyporus lucidus, 397 Omnex,16 Omphalia pigmentata, 382 Oncoba, 773 Onion,774

basal rot, 367 bulb, rot, 91 cladiosporium allii, 262 downy mildew, 220 gray mold neck rot, 353 mycelial neck rot, 353 paratrichodorus allius, 322 pink root, 399 puccinia allii, 433 purple blotch, 173 small sclerotial neck rot,

354 smudge, 357 smut,460 soft rot, 375 sour skin rot, 91 stemphylium blight, 171 sweet, 892 white rot, 405 yellow dwarf potyvirus,

500 Onion boat, 307 Onobrychis, 838 Onoclea, 666 Onosmodium,775 Onygenaceae,43 Oomycete,38 Oomycota, 37 Oospora

citri-aurantii, 382 lactis, 382

Ophiodothella vaccinii, 271 Ophioglossum, 663 Ophionectria

balsamea, 203 scolecospora, 203

Ophiosphaerella, 383 Ophiostoma

novo-ulmmi, 519-522 ulmi,519-522

Oplismenus, 775 Oplopanax, 644 Opuntia, 590

black spot, 255 charcoal spot, 255 cladode rot, 352 Sammon's tobamovirus,

500 Opus, 11 Orange, 619 Orange rust, blackberry, 422,

427 Orbit, 17 Orchid, 87, 775, 776

antracnose, 68 brown necrotic streak, 500 brown spot, 90 cattela, wilt, 523 fleck rhabdovirus, 500 leaf spot, 68 mosaic potexvirus, 500 puccinia cypripedii, 434 ring spot, Color Plate 1E,

1F,500 wilt, 523

Orchid-tree, 567 Ordinal,14 Oregano, 776 Oregon-grape,744 Organophosphate, 22 Oriental arborvitae,

coryneum blight, 133 Oriental cherry, 611 Oriental flowering spirea,

856 Oriental plane, 807

oidium obductum, 342 Origanum,776 Ornamentals

boron deficiency, 328 rotylenchus uniformis, 321

Ornithogalum, 861 mosaic potyvirus, 500

Orobanche ludoviciana, 177 ramosa, 177

Orontium, 684 Orthocarpus, 777 Orthocide, 7 Oryzavirus, 59 Osage-orange, 776

leaf b light, 170 Osier, 777

blister canker, 185 Osmanthus

Americanus, 644 fragrans, 870 holly, 707 ilcifolius, 707

Osmaronia, 777 Osmorhiza, 873 Osmunda, 666

inflorescence smut, 458 Osoberry, 777 Osteospermum, 673 Ostrich fern, 666 Ostrya,709 Otria25,18 Ourmiavirus,59 Ouygenales, 43 Ovularia

aristolochiae, 272 pulchella, 272

Ovulinia azaleae, 150-152 Owls clover, 777 Oxadixyl, 16 Oxalis,777 Oxeye daisy, 640 Oxybaphus, 888 Oxycarboxin, 16 Oxycop,20 Oxydendron, 777

purple blotch, 268 twig blight, 170

Oxygen deficiency, 333 Oxyria, 763 Oxytetracycline hydroxide,

20 Oxythioquinox, 16 Oyster cap, maple, 395 Oyster mushroom, 764, 777

dry bubble, 529 Ozone injury, tobacco, 431

Pacarzim,7 Pachistima, 777 Pachysandra, 778

pseudonectria pachysandricola, 173

Pacific dagger nematode, oak,324

Pacific dogwood, 649 Pacific silver fir, black

mildew,l11 Pacific wax myrtle, 778 Paecilomyces buxi, root rot,

383 Paeonia, 794 Pagoda dogwood, 649 Pagoda tree, 851 Paintbrush, Indian, 778 Paintbrush pine, rust, 417 Painted cup, 778 Painted spurge, 858

canker, 191 Painted-tongue, 837 Pale leaf spot, horse-radish,

280

Pallidosis virus, strawberry, 509

Pallitop, 16 Palm,779

bud rot, 386 coconut, 779 date, 779 false smut, 457 fishtail, 780 forster sentry, 780 leaf spot, 256 lethal yellowing, 106 mosaic potyvirus, 501 pestalotia palmarum, 272 queen, 780 rhapis,780 royal,780 sugar, 781 ~ashington,96,781

Palm areca, 779 Palm bud rot, coconut, 395 Palmetto, 781

black mildew, 113 Paloverde, 781 Pampas grass, 782 Panax,681 Pandanus, 782

melanconium pandani, 266

Panicum,874 mosaic sobemovirus, 501

Pansoil,l1 Pansy,782

anthracnose, 71 aphanomyces

cladogamus, 349 floral smut, 461 scab, 474

Pantoea herbicola, 88 stewartii, 88

Papaver, 813 Papaya, 782

crown rot, 354 mosaic potexvirus, 501 ring spot potyvirus, 501 seedling blight, 132

Paper birch, yellow leaf blister, 234

Paper-mulberry, 584 Paralongidorus sylphus, 314 Paralysis potyvirus, peanut,

503 Paratrichodorus

allius,322 christiei, 322 pachydermus,322

Paratyenchus, projectus, 318 Paratylenchus

anceps, 317 dianthus, 317 elachistus, 317 epacris, 317 hamatus, 317 macrophallus, 317 micoletzkyi, 317 penetrans, 318

Parflo,16 Parkinsonia,783 Parnassia, 693 Parrotfeather, 783

stem rot, 399 Parsley, 783

downy mildew, 223 hedge,699 powdery mildew, 339

Parsnip,784 canker,l46 downy mildew, 223 leaf spot, 280 meadow,908

Parthenium, 695 Parthenocissus

quinquefolia, 894 tricuspidata, 718

Partridge-berry, 784 Partridgepea,602 Parzate,16 Parzate C, 19 Paspalum, physopella

compressa, 432 Passiflora, 784 Passion flower, 784 Pastinaca, 784 Patellariaceae,46 Pawpaw,785 Pea,785

anthracnose, 70 ascochyta pisi, 120 bacterial blight, 95 black leaf, 256 blight, 118, 149 cercospora lathyrina, 246 downy mildew, 221 enation mosaic

enamovirus, 501 fasciation, 82 fusarium wilt, 526 hope cyst nematode, 311 mosaic potyvirus, 501 mottle,501 oat cyst nematode, 310 perennial, 871 pigeon, 802 root rot, 349 scab,446 streak carlavirus, 501 sweet,871

Index - 981

uromycesfabae,443 wilt, 501, 526 witches' broom, 106

Pea cyst nematode, 310 Pea-tree, 792 Peach,501,786

asteroid spot, 501 blight,l48 brown rot, 379 calico,501 canker, 180, 213 cladosporium

carpophilum,444,445 dieback, 213 dwarf,501 feIt fungus, 210 fruitrot352,363,371,388 golden net, 501 green fruit rot, 405 Javanese root-knot

nematode, 316 leaf curl, 233, 233 little peach, 501 mildew,345 mosaic,501 mottle,502 necrotic leaf spot, 502 phomopsis sp. fruit rot,

388 phony disease, 502 phyllosticta circumscissa,

275 red suture, 502 ring nematode, 306 ringspotilavirus,502 root rot, 361 rosette, 502 rosette mosaic nepovirus,

502 rot, 352 shoot blight, 133 shoot dieback, 204 southern root-knot

nematode, 316 stubby twig, 502 twig canker, 195 wart, 502 western X-disease, 104 X-disease, 104 yellow bud, 502 yellow leaf roll, 105

Peanut, 789 blight, 168 collar rot, 375 criconemoides

cylindricum, 306 crown rot, 352 cylindrocladium black rot,

361

982 • Index

Peanut (cont.) leaf spot, 282 mottle potyvrius, 502 mycosphaerella arachidis,

268 mycosphaerella berkeleyi,

247,268 paralysis potyvirus, 503 phaeoisariopsis personata,

248 rust, 433 stern canker, 195 stunt cucumovirus, 502 web blotch, 176 wilt, 527

Pear, 790 anthracnose, 77 bitter rot, 372 blight,83 brown rot, 379 canker, 203, 204 coniothyrium pyrina, 250 dec1ine phytoplasma, 503 dieback, 213 felt fungus, 210 fire blight, 83 fruit rot, 359 leaf blight, 141 limb light, 133 pome fruit spot

anthracnose, 472 pratylenchus minyus, 318 ripe rot, 381 scab,452 soft rot, 384 stony pit, 503 twig blight, 156

Pearl everlasting, 544 Pecan, 792

anthracnose, 472 canker, 190 dolichodorus obtusus, 308 downy pot, 268 fusarium, 236 gnomonia caryae var.

pecanae, 258 leafblotch,175 leaf spot, 267 pestalotia, 236 sirosporium diffusim, 245

Pedicularis, 904 Pelargonium

carmovirus, 503 line pattern carmovirus,

503 rust, 437

Pellaea, 665 Pellicularia

koleroga, 152

rolfsii, 153 Pellicularia filamentosa, 66,

152,383 f.sp. microsc1erotia, 152 f.sp. sasakii, 152 f.sp. timsii, 152

Peltandra, 555 Penconazole, 16 Pencycuron,17 Penicillium

digitatum, 384 dry rot, 384 expansum, 384 flower blight, 155 gladioli, 384 oxalicum, 154 roseum,386 vermoeseni, 203,386

Peniophora luna, 386 polygonia, 360

Penncozeb, 15 Pennisetum,793 Pennisetume, phyllosticta

penicillariae, 276 Penstemon, 794

root rot, 393 Pentaclor, 16 Pentakol, 16 Peony, 794

anthracnose, 73 botrytis blight, 127 flower blight, Color Plate

SB late blight, 125 leaf blotch, 174 leaf curl, 503 ring spot, 503 septoria leaf spot, 285

Peperomia, 795 pythium splendens, 400 ring spot, 503

Pepper, 795 alfalfa mosaic, 503 anthracnose, 72 aphanomyces

c1adogamus, 349 bacterial spot, 102 cercospora capsici, 245 fruit rot, 68, 357 gray leaf spot, 287 mild mottle tobamovirus,

503 mild tigre bigeminivirus,

503 mottle potyvirus, 503 phoma rot, 387 phytophthora blight, 158 ripe rot, 357

stern rot, 404 Texas bigeminivirus, 503 tylenchorhynchus

capitatus, 322 vein banding mosaic, 503

Pepper-grass, 797 Pepper spot, cabbage, 91 Pepper vine, 797 Pepperbush, sweet, 623 Peppermint

root rot, 369 Thorne's needle

nematode, 314 Peraphyllum, 860 Perennial groundcover, 727 Perenniporia

fraxinophila, 365 subacida, 398

Periconia rnaculans, 294 Peridermium

appalachianum, 417 ornamentale, 430 rugosum,430 stalactiforme, 420

Perisporiales, 43 Periwinkle, 892

canker, 205 dieback, 205

Peronosc1erospora sorghi, 222

Peronospora antirrhini, 220 arborescens, 220 arthuri, 220 destructor, 220 dianthicola, 220 effusa, 221 farinosa, 222 fragariae, 221 grisea, 221 manshurica, 221 myosotidis, 221 oxybaphi, 221 parasitica, 221 pisi,221 potentiallae, 222 rubi,222 rumicis, 222 schactii, 222 sparsa, 222 statices, 222 tabacina, 222 trifoliorum, 222

Peronosporaceae,40 Peronosporales, 39 Persea

Americana, 562 borbonia, 826

Persimmon, 797

spot anthracnose, 469 tar spot, 267 twig blight, 156 wilt, 518

Pestalotia, 155 aquatica, 272 aucubae,272 c1iftoniae, 272 funerea, 154, 272 guepini, 272 hartigii, 155 leucothoes, 272 longisetula, 386 macrotricha, 272 microspora, 298 palmarum, 272 rhododendri, 273

Pestalotiopsis aquatica,272 funerea, 154, 272 leucothoes, 272 maculans, 272 palmarum, 272 quepini, 272 sydowiana, 273

Pestalozziella subsessilis, 254,273

Pesticide application equipment, 26

Pesticide dusts, 27 ÄÄPesticide Handbook,ÄÄ

4 Petal blight

China aster, 146 chrysanthemum, 146 zinnia, 125

Petalostemon, 798 Petasites, 798 Petiole rot, strawberry, 386 Petroselinum, 783 Petunia, 798

fascia tion, 82 Pezicola

livida, 191 malicorticis, 77

Pezicula carpinea, 204 corticola, 204 malicorticis, 202 pruinosa, 204

Pezizaceae, 47 Pezizales, 47 Pezizella oenotherae,

blackberry, 273 Phacelia,592 Phacidiaceae, 46 Phacidiales, 46 Phacidiella coniferarum, 204 Phacidium

abietinellum, 155 balsameae, 155 coniferarum, 204 curtisii,273 infestans, 155

Phadidiopycnis boycei, 204 Phaeoacremonium,

aleophilum, 386 Phaeoacromonium

chlamydosporium, 386 chlamydosporum, 155 inflatipes, 386

Phaeocryptopus gaeumannii, 294

Phaeoisariopsis griseda, 263 personata, 247, 248 robiniae, 257

Phaeolus schweinitzii, 397 Phaeosphaeria maydis, 274 Phaeotrichoconis

crotolariae, 274 Phakopsora

cherimoliae, 430 jatrophicola, 430 pachyrhizi, 430 vitis, ampelopsis, 432 zizyphi-vulgaris, 430

Phalaris, 828 Phallales, 51 Phaseolas, acutifolius, 570 Phaseolus

angularis, 568 aureus,570 coccineus, 570 limensis, 568 vulgaris, 568

Phellinus gilvus, 397 igniarius, 365 ingniarius, 365 laevigatus, 398 pini,366 robiniae, 366 robustus, 366 weirii,398

Phenostat-H, 19 Phenylurea, 18 Phialophora

graminicola, 155 gregata, 355, 526 malorum, 386

Philadelphus, 758 cercospora angulate, 244

Phildendron, leaf rot, Color Plate 4B

Philibertia, 799 Philodendron, 799

pythium splendens, 400

Index - 983

Phlebia chrysocrea, 387 Phloem necrosis

chrysanthemum, 106 elm, 104

Phloeospora aceris, 274 adusta, 156

Phlox, 800 erysiphe cichoracearum,

450 septoria leaf spot, 284 stern blight, 164 stern disease, 307 streak,503

Phlyctema ficuum, 274 vagabunda, 72

Phoenix, 779 Phoenix-tree, 801 Phoima lycopersici, 241 Pholiota adiposa, 387 Phoma

apiicola, 387 arachidicola, 176 betae, 387 chrysanthemi, 120 conidiogena, 156 destructiva, 387 eupyrene, 298 exigna, 241, 242 exigua, 275, 276 fumosa, 156 glomerata, 156 lingam,108 macdonaldii, 156, 388 mariae, 156 piceina, 156 root-rot, 387 rot, 387 sc1erotioidies, 156 strobiligena, 156 terrestris, 388, 399

Phomas exigna, 241 Phomopsis, 388, 527

alnea, 204 ambigua, 156 amygdali, 204, 388 blight, 137, 157 boycei,204 diospyri, 156 elaeagni, 204 gardeniae, 204 japonica, 156 juniperovora, 156 kalmiae, 157 livella,205 lokoyae, 205 longicolla, 157 mali,388

984 • Index

Phomopsis (cant.) oblonga, 157 obscurans, 136,157 occulta, 157 vaccinii, 157, 388 vexans, 157 viticola, 274

Phony disease, peach, 502 Phoradendron, 757

californicum, 289 juniperinum, 290 libocedri, 290 serotinum, 290 tomentosum, 290 villosum,290

Phorate TSX, 11 Phormiumtenax, 768 Phosphoric acid ester, 17, 22 Phosphorous acid, 17 Phosphorus deficiency, 333 Photinia, 801 Phragmidium

Americanum, 430 fisiforme, 430 montivagum,430 mucronatum, 430 mycronatum, Color Plate

2A,2B rosae-arkansanae, 431 rosae-californicae, 431 rosicola, 431 rubi-idaei,432 speciosum, 432 subcorticium, 432

Phragmodothella ribesia, 205

Phragmopyxis acuminatoa, 432

Phragnidium tuberculatum, 432

Phthium aphaeidermatium, 527

Phygon,10 Phyllachora graminis, 275 Phyllactinia

angulata, 343 corylea, 343

PhylIodoce, 761 Phyllody

hydrangea, Color Plate 3C phytoplasma, hydrangea,

496 Phylloosticta cryptomeriae,

157 Phyllostachys, 565 Phyllosticta

andropogonivora, 275 antirrhini, 275 aucubae, 275

batatas, 157 camelliae, 275 catalpae, 275 circumscissa, 275 concentrica, 276 cookei,276 decidua, 276 hamamelidis, 276 hydrangeae, 276 ilicis, 276 kalmicola, 276 lagerstroemiae, 157 leaf spot, 277 liriodendrica, 269 lthaeina, 275 maculicola, 276 maxima,276 minima,276 multicorniculata, 157 myssae,270 penicillariae,276 pteridis, 157 richardiae, 276 saccardoi, 276 sanguinariae, 276 sojicola, 276 vaccinii,276 viridis, 269 wistariae, 276

Phyllostictaceae, 51 Phymatotrichopsis

omnivors, 388 Phymatotrichum

omnivorum, 388 root rot, 388

Physalic, mosaie tymovirus, 503

Physalis, 693 alkekengi,614

Physalospora cortices, 205 dracaenae, Color Plate 7E,

158 glandieola, 205 gregaria, 157 miyabeana, 206 mutila,391 obtusa, 206 obtuse, 158,391 rhodina, 206 vaccini, 348

Physarum polycephalum, 454

Physocarpus, 769 Physoderma maydis, 277 Physopella

ampelopsidis, 432 compressa,432 fici,415

Physostegia, 801 Phythium

aristosporum, 399 paroecandrum, 400

Phyto-Bordeaux, 9 Phytomycin,21 Phyton 27, 20 Phytophthora

blight, 158 cactorum, 158, 206,

392,527 capsici, 158, 392 cinnamomi,208,392,527 citricola, 393 citrophthora, 159,393 colocasiae, 393 cryptogea, 393 cryptogea var. richardiae,

393 drechsleri, 393 erythroseptica, 159 erythroseptiea, 394 fragariae, 394 ilicis, 159 infestans, 159-163 lateralis, 394 meadii,163 megasperma, 394 megasperma f. sp.

glycinea, 394 nicotianae, 163 nicotianae var. nicotianae,

394 nicotianae var. parasitica,

395 palmivora, 395 parasitica, 163,395 parasitica var. nicotianne,

395 phaseoil,222 porri,395 sojae, 395 syringae, 163,208

Phytophtora infestans, Color Plate SC nicotianne, 395

Phytoplasmas, 55-61 Phytoreovirus, 59 Phytotoxicity, 2 Pie-Clor,8 Pieea, 856

shoot blight, 170 Piek-a-back, 801 Pieramnia, 708 Piedraiaceae, 43 Pierce's grape disease, 102 Pieris, 802 Pigeon pea, 802

witches' broom, 106

Piggotia fraxini, 266, 269 Pilarstin, 7 Pilea,556 Pileolaria

cotirU-coggyTiae,432 patzcuarensis, 432

Pimenta, 540 Pimpinella anisum, 546 Pimple, carnation, 101 Pincushion cactus, 590 Pine,802

arceuthobium occidentale, 291

bleeding canker, 210 born feit blight, 150 bursaphelenchus

lignicolus, 305 xylophilus, 305

canker, 179, 190, 209, 212 coleosporium

apocyanaceum,416 helianthi,417 ipomoeae,416 jonesü,416 lacinariae, 416 pacificum, 416 pinicola,417 tussilaginis,416,417 vernoniae, 416, 417

collar rot, 363 comandra blister rust, 417 criconemoides lobatum,

306 cronartium

appalachianum,417 harknessü, 418

eastern gall rust, 418 hemicriconemoides

floridensis, 309 lophodermium

nitens,297 pinastri, 297

needle blister rust, 416 needle cast, 142, 147,295,

297,298 needle rust, 416 root lesions, 369 root rot, 361, 369, 393, 395,

397,398,411 rust,428 screw,782 seedling blight, 125 shoot blight, 170 sooty mold, 468 southern fusiform, 418 sphaeropsissapinea,139 sweet-fern blister rust,

417 systremma acicola, 171

tar spot, 296 western gall rust, 421

Pine cone rust, 418, 420 Pine gall rust, 421 Pine twig, blight, 129 Pineapple, 805

c1osterovirus, 503 reniform nematode, 320 wilt,503

Pink calla, 594 leaf blight, 159

Pink fruit, cherry, 486 Pink patch, turf, 359 Pink root, onions, 399 Pink snowmold, bentgrass,

464 Pink watery rot, potato, 394 Pinks,644 Pinon, blister rust, 418 Pinon pine, needle cast, 295 Pinto leaf, cherry, 486 Pinus,802

shoot blight, 170 Piperalin, 17 Pipron,17 Pipsissewa, 806, 903 Piqueria, 862 Pirostoma nyssae, tupelo

leaf spot, 278 Pistachio, 806

blight,168 leaf spot, 285 rhizoctonia solani, 165 shoot blight, 125

Pisum, 785 Pitcher-plant, 806 Pitcher-sage, 854 Pithecellobium, 806 Pitoporus betulinus, 397 Pitted sap rot, fir, 398 Pittosporum, 807

cercospora pittospori, 247 PlacosPhaeria

graminis,278 haydeni, 278

Plagiostoma asarifolia,278 prenanthis,278

Plane London,807 oriental, 807

Plane tree, 807 canker,199

Planera, 897 Plantago, 808

mottle tymovirus, 504 Plantain, 808 Plantain-lily, 712 Plantvax, 16

Index - 985

Plasmodiophora brassicae, 36,214

Plasmodiophoraceae, 37 Plasmodiophorales, 37 Plasmopara

acalyphae, 223 crustosa, 223 geranii, 223 halstedü, 223, 231 nivea,223 pygmaea,223 vibumi,223 viticola, 223

Platanus acerifolia, 807 occidentalis, 807 orientalis, 807 racemosa, 807

Platycodon, 808 Plectospira myriandra, 395 Plectosporium tobacinum,

164 Plectranthus australis, 866 Pleiochaeta setosa, 279 Plenodomus

destruens, 396 fuscomacu1ans, 208

Pleochaeta prosopidis, 347 Pleosphaerulina sojicola, 279 Pleospora

betae,387 herbarum, 279, 287, 395

Pleosporales, 44 Pleuroceras populi, poplar,

266 Pleurotus, 764 ostreatu~395,777 ulmarius, 395

Ploioderma hedgecockii, 296 lethale, 145,296

Plum black knot, 106 blossom blight, 148 blumeriella jaapü, 249 brown rot, 148,379,462 dieback, 213 garden, 80s line pattern, 503 mycosphaerella cerasella,

245 sapwood rot, 407 venturia cerasi, 451 white spot, 504

Plum-yew, Japanese, 608 Plumed thistle, 619 Plumegrass, 809 Plumeria,810 Plumy coconut, 780

986 • Index

Plunger duster, 26 Pod blight, lima bean, 137 Podocarpus, 810 Podophyllum, 751 Podosphaera

clandestina, 344 leucotricha, 343 tridactyla, 344

Poinciana, 810 ravenelia humphreyana,

441 Poinsettia, 810

mosaic tymovirus, 504 oidium, 343 root rot, 356 scab,474 stern canker, 195 stern rot, 349, 401 tip blight, 125

Poison hemlock, 811 Poker-plant, 726 Polarex, 11 Polemonium, 811 Polianthes, 883 Policar MZ, 15 Policar 5, 15 Pollaccia saliciperda, 446 Polygala, 756 Polygonatum, 851 Polygonello articulata, 722 Polygonum, tar spot, 281 Polypodium, 666 Polypody fern, 666 Polyporaceae, 50 Polyporus

abietinus, 398 anceps,395 dryadeus, 397 gilvus, 397 hispidus, 397 lucidus, 370 mori,364 pargamenus, 397 schweinitzii, 397 squamosus, 397 sulphureus, 397 tomentosa, 375 tomentosus, 397 versicolor, 398

Polyram,16 Polyram M, 15 Polyscias, 553 Polystichum, 665 Polystomellaceae, 44 Pomarsol Forte, 18 Pomarsol Z, 19 Pome fruit spot anthracnose

apple,472 pear,472

quince,472 Pomegranate, 811

leaf b loteh, 176 soft rot, 384 spot anthracnose, 474

Poncirus, 696 Pond-spiee, 737, 812 Ponderosa pine

canker, 179 needle cast, 295 rust, 418

Pondily, yellow, 898 Popcorn disease, mulberry,

132 Poplar, 812

black leaf spot, 248 branch gall canker, 199 canker, 190 criconemoides crotaloides,

306 cylindrosporium

populinum, 266 decline potyvirus, 503 dieback, 182 dothichiza canker, 193 hypoxylon canker, 198 ink spot, 248 leaf blight, 147 leaf blister, 234 leaf spot, 285 marssonina populi, 266 marssonina tremulae, 266 mosaic carlavirus, 503 mycosphaerella

populicola, 270 rust, 428 septogloeum

rhopaloideum, 283 shoot blight, 139 wetwood,79 white mottled rot, 365 white wood rot, 409 yellow, 884 yellow-leaf blister, 234

Poppy,813 bacterial blight, 101 California, 593

Poppy-mallow, 813 aecidium avocense, 413

Populina, 139 Populus, 812 Poria

cocos, 398 laevigata, 398 luteoalba, 398 prunicola, 398 subacida, 398 weirii,398

Portulaca, 814

white rust, 517 Postacia, 806 Postharvest decay

cantaloupe, 364 leatherleaf fern, 361, 401

Postharvestrot, tomato, 380 Postia balsamea, 397 Pot marigold, 592 Potamogeton, 552 Potassium bicarbonate, 17 Potassium deficiency, 334 Potassium

hydroxyquinoline sulfate, 20

Potato, 814 acropetal necrosis, 504 actinomyces scabies, 448 anthracnose, 68 apicalleaf roll, 106 aucuba mosaic potexvirus,

504 bacterial ring rot, 79 bacterial rot, 91 black dot disease, 68 black scurf, 133, 383, 401 black wart, 231 blackleg, 86 blight, 119, 159-163 carlavirus, 505 celery, alfalfa mosaic

alfamovirus, 476 Columbia root-knot

nematode, 315 cuscuta gronovii, 217 didymella lycopersici, 241 late blight, Color Plate SC,

159-163,160,161 leaf blotch, 173 leafroll luteovirus, 514 lesion nematode, 318 mosaic,494 mottle, 505 mycovellosiella concors,

246 nematode galls, 390 nucleorhabdovirus, 505 pink watery rot, 394 potexvirus, 505 potyvirus, 504, 505 powdery scab, 448 rhizoctonia rot, 66 rugose mosaic, 505 silver scurf, 453 soft rot, 91 spindie tuber viroid, Color

Plate 3E, 505 streptomyces scabies, 448 sweet,871

feathery mottle

potyvirus, 511 white rust, 517

vein banding, 505 verticillium wilt, 490 virus A, 505 watery leak, 399 witches' broom, 505 yellow spot, 505

Potato rot nematode, 307 Potentilla, 816 Potexvirus, 59

impatiens, 496 potato, 505

Pothos, 817, 842 Potyvirus,59

artichoke, 477 asparagus, 477 clover, 489 guar, 495 potato, 504, 505 zebrina, 514

Powdery mildew, 337-347, 449

alder, 338 apple, 343 begonia, Color Plate 5D cabbage, 339 camation,342 carrot, 339 cereals, 339 cherry,344 crape-myrtle, 339 cucurbits, 338 elm, 343 English ivy, 342 euonymus, 453 flowering dogwood, 342 ginseng, 340 grape, 346 ground-cherry, 344 haustoria, 448 hazelnut, 343 legumes, 340 leucothoe axillaris, 342 mint,340 oak,344 rose, Color Plate 5A, 5B summer squash, 344 tomatoes, 340 willow,347

Powdery scab, potatoes, 448 Power sprayers for horne

gardens,24 Pox, sweetpotato, 407 Prairie-clover, 798 Prairie coneflower, 825 Prairie gentian, 662 Pratylenchus

brachyurus, 318

coffeae, 318 crenatus, 318 fallax, 318 hexincisus, 318 minyus, 318 musicola, 318 nannus,318 negelectus, 318 penetrans, 318 pratensis, 319 safaenis, 319 scribneri,319 subpenetrans, 319 thomei,319 vulnus, 319 zeae,319

Prenanthes, 817 leaf spot, 278

Pressure can, 26 Pressurized sprays,

applicators for, 22 Prevex,17 Previcur N, 17 Prickly-ash,817

stern canker, 192 Prickly pear cactus, 590

hendersonia opuntiae, 236 Prickly-poppy, 817

downy mildew, 220 Prirnrose,818

black spot, 242 crown rot, 125 leaf spot, 92, 280 mosaic,505

Primula, 818 Princes-feather, 542 Princess-tree, 785 Pringsheimia sojicola, 279 Privet, 230, 818

armillaria tabescens, 356 ring spot, 505

Pro, 17 Proboscidea, 888 Proboscis-flower, 888 Prochloraz, 17 Procure,19 Procymidone,17 Prodazim,7 Prodigy,13 Prodone,17 Prolex, 17 Propamocarb,17 Prophos,22 Propicon, 17 Propiconazole, 17 Propineb, 17 Proplant, 17 Prosopis, 755 Prospodium

Index. 987

appendiculatum, 433 lippiae, 433 plagiopus, 433 transformans, 433

ProStar, 13 Prostrate spurge, 858 Protect T /0,15 Protector-D,18 Protector-L,18 Protomyces

gravidus, 231 macrosporus, 231

Protomycetaceae,42 Proturf, 14, 15 Pro turf Funigicide II, 8 Prune, 808

blossom blight, 148 brown rot, 148 constricting mosaic, 505 diamond canker, 506 drawf ilavirus, 487 dwarf ilavirus, 506

Prunella,819 Pruning wound canker,

almond, 208 Prunus

amygdalus, 540 armeniaca,550 domestica, 808 iyoni,603 laurocerasus, 611 necrotic ring spot ilavirus,

487 necrotic ring spot virus,

Color Plate 3D necrotis ring spot ilavirus,

506 persica, 767, 786 serrula ta, 611 subhirtella, 611 triloba, 541 virginiana, 615

Psalliota campestris, 226 Pseudcercospora, fig, 268 Pseudeurotiaceae, 43 Pseudo curly top

hybrigeminivirus, tomato,513

Pseudo mild yellow edge carlavirus, strawberry, 509

Pseudo-yellows closterovirus, beet, 481

Pseudocercospora abelmoschi, 244 cannabina, 245 capsellae,244 cruenta, 269

988 • Index

Pseudocercospora (cont.) handelii,247 sordida, 131

Pseudocercosporella capsellae, 248, 279

Pseudolarix, 685 Pseudomassaria

sepincolaeformis, 192 Pseudomonas, 97

aceris,89 adzukicola, 90 albopreciptans, 89 andropogonis, 89 angulata, 90 asplenii, 90 avenae,90 berberidis, 90 caryophylli, 90 cattleyae, 90 cepacia,91 cichorii, 91 corrugata, 91 fluorescens, 91 gladioli, 91 melophthora, 92 pseudoa1caligenes, 92 ribicola, 92 sesami, 92 solanacearum, 92 syringae, 93 syringae pv. aceris, 89 syringae pv. angulata, 90 syringae pv. apii, 91, 93 syringae pv. aptata, 93 syringae pv.

coronafaciens, 93 syringae pv. delphinii, 93 syringae pv. glycinae, 93 syringae pv. helianthi, 93 syringae pv. hibisci, 93 syringae pv. lachyrmans,

93 syringae pv. mori, 94 syringae pv. papulans, 94 syringae pv. phaseolicola,

95 syringae pv. pisi, 95 syringae pv. porri, 95 syringae pv. savastanoi, 95 syringae pv. syringae, 95 syringae pv. tabaci, 96 syringae pv. tagetes, 96 syringae pv. tagetis, 96 syringae pv. tomato, 91, 96 syringae pv. zizaniae, 96 tabaci,96 viburni,96 viridiflava, 96 viridilivida, 96

vvashingtoniae,96 vvoodsii, 96

Pseudonectria pachysandricola, 173 rouselliana, 208

Pseudoperonospora celtidis, 224 cubensis, 224

Pseudopezicula tetraspora, 236

Pseudopeziza ribis, 77 Pseudorhytisma bistortae,

281 Pseudosaccharomycetaceae,

52 Pseudoseptoria

everhartii, 282 obtue,282

Pseudotsuga, 649 Pseydocercospora purpurea,

173 Pseydomonas

syringae pv. mors-prunorum, 94

syringae pv. primulae, 92 Pseydovalsa longipes, 208 Pseyocercospora puderi, 247 Psidium, 694 Psophocarpus, 902 Psorosis complex, citrus, 488 Ptelea,710 Pteretis, 666 Pteridium, 664 Pteris,664 Public Lavv 518, 2 Puccinia

acroptili, 433 allii,433 amphigena, 433 andropogonis, 433 antirrhini, 433 arachidis, 433 aristidae, 433 asparagi, 433 brachypodii var.

poae-nemoralis, 437 caicitrapae var.

centaureae, 434 canaliculata, 434 carduorum, 434 caricina, 434 caricis var. grossulariata,

434 carthami, 434 claytoniicola, 434 conoclinii, 434 coronata, 434 crandallii, 434 cynodontis, 434

cypripedii, 434 dioicae, 435 dracunculi, 435 extensicola, 435 flaveriae, 435 helianthi,436 heterospora, 435 heucherae,435 hieracii, 437 horiana, 437 iridis, 437 jaceae var. diffusa, 437 malvacearum, 437 melampodii, 435, 438 menthae, 437 nakanishikii, 437 pelargonii-zonalis, 437 phragmitis, 437 poaenemoralis, 437 polygoni-amphibii, 438 polysora, 438 pringsheimia, 434 psdii,438 pygmaea, 438 recondita, 438 solheimi, 438 sorghi,438 sparganioides, 439 stemotaphricola, 439 striiformis, 439 substriata, 439 tanaceti var. dracunculina,

435 taneceti, 434 thaliae, 439

Pucciniaceae, 49 Pucciniastrum

Americanum, 439 epilobii, 439 ericae,443 goeppertianum, 439 hydrangeae, 439 myrtilli, 439 vaccinii, 439

Puccoon, 737 Pueraria, 726 Pulovvnia, 785 Pumpkin,819,858

bacterial spot, 99 bacterial vvilt, 88 blight, 131 fruit rot, 131, 366, 367 fusarium root rot, 369 gummy stern blight, 149 root rot, 369 stern blight, 142

Punch,12 Punctodera punctata, grass

cyst nematode, 311

Puncture vine, 819 Punica granatum, 811 Purple blotch, oxydendron

(sourwood), 268 Purple coneflower, 652 Purple-flowered, 694 Purple leaf blotch, blue

grass, 177 Purple leaf spot, strawberry,

270 Purple loosestrife, 742 Purple raspberries, cane gall,

78 Purslane

black stern rot, 362 canker, 192 root rot, 192

Pussy willow, tar spot, 281 Pustule, bacterial, soybean,

99 Pycnanthemum, 763 Pycnosystanus azalea, 129 Pyracantha, 819

basil,522 scab,446 wilt, 522

basiI, 522 Pyrenochaeta

Iycopersici, 398 phlogis, 164 terrestris, 399

Pyrenomycetes,45 Pyrenophora lolii, 260

fescue, 260 Pyrethrum,820

fascia tion, 82 Pyricularia grisea, 164,

279 Pyrifenox,17 Pyrimidine, 10, 12 Pyrola, 820 Pyroquilon, 17 Pyrozophos, 17 Pyrrole, 12 Pyrus, 790 Pythiaceae, 39 Pythium, 400

acanthicum, 399 aphanidermatum, 399 arrhenomanes, 399 blackleg, 465 carolinianum, 399 catenulatum, 399 debaryanum, 399 mastophorum, 400 myriotylum, 164, 399, 400,

527 periplocum, 399 polymastum, 400

splendens, 400 tracheiphilkum, 527 ultimum, 400 uncinulatum, 400

Pythium Contro!, 15

Qeetolex, 18 Quadris,5 Quail pea, mosaic

cornovirus, 506 Quamoclit, 639 Quartemaryammonium

compounds, 17 Queen palm, 780

glomerella eingulata, 258 Queens delight, 863 Quercus, 770 Quince,820

anthracnose, 77 blight,83 blotch,227 Chinese, 821 dieback, 213 fire blight, 83 flowering, 821 Japanese, 821 pome fruit spot

anthracnose, 472 rust, 423 soft rot, 384

Quinoline,17 Quinone,lO Quinone,8 Quintar, 10 Quintox,16 Quintozene, 18

Rabbit-eye blueberry, leaf spot, 257

Rabbitbrush, 821 Radish,822

altemaria raphani, 240 anthracnose, 69 black root, 350 fusarium wilt, 526 leaf spot, 98, 102 mosaic cornovirus, 506 wilt, 526

Radopholus similis, 320 Ragweed, 823

leaf spot, 274 stern gall, 231

Rain-lily; 823 Rainbow conk, 398 Rally, 16 Ramularia

armoraciae, 280 didyma, 253 pastinaeae, 280

Index. 989

primulae, 280 pusilla, 272 vallisumbrosae, 280 variabilis, 280

Ramulispora sorghi, 280 Ranunculus, 823

mottle potyvirus, 506 Raphanus, 822 Raphiolepis, 715 Rasp leaf nepovirus, cherry,

487 Raspberry, 824

anthracnose, 66, 72 black spot, 287 cane blight, 147 cane gall, 78 cane spot, 179 canker, 209 cuscuta gronovii, 217 decline, 506 dieback, 72 late leaf rust, 439 leaf curlluteovirus, 506 leaf spot, 286 mosaic,506 necrosis, 506 pezizella oenotherae, 273 phragrnidium rubi-idaei,

432 ring spot nepovirus, 506 spur blight, 139 streak,506 yellow mosaic, 507

Rasutoria abietiis, 111 Ratibida, 825 Ratoon stunt, sugarcane, 82 Rattan vine, 825 Rattle tobravirus, tobacco,

503,512 Rattlesnake-root, 817 Ravenelia

dysocarpae,441 fragrans var. evernia, 441 humphreyana, 441 indigoferae,441

Raxil,18 Ray blight, chrysanthemum,

125 Rayado fino marafivirus,

maize,498 Raze, 15 Reach,10 Recoil,16 Red alder, leaf cur!, 234 Redbay, 826

black mildew, 112, 113 black spot, 110

Red brown heart, maple, 397

990 • Index

Red-eedar, 723 gymrnosporangiurn

bermudianum, 423 gymnosporangium

nelsonii, 423 lophodermium

juniperinum, 297 Red ehestnut, sphaeropsis

eanker, 205 Red clover, vein mosaic

earlavirus, 507 Red fir, phoma eupyrene,

298 Red leaf blister, bireh, 233 Red leaf gall, 231

eranberry, 232 Red leaf luteovirus

earrot, 483 filaree, 494 subterranean clover, 510

Red leaf spot, gladiolus, 286 Red mottle rot, prunus, 398 Red oak, lembosina

quereina, 268 Red osier dogwood, 649 Red pine, needle blight, 140 Red ray rot, eonifer, 395 Red ring spot eaulimovirus,

blueberry, 481 Red rot, eonifer, 366 Red stele disease,

strawberry, 394 Red-stern, 669

filaree, 669 Red suture, peaeh, 502 Red valerian, 889 Redbud, 825

euseuta exaltata, 217 root rot, 397

Redtop dreehslera erythrospilum,

260 gray leaf mold, 260 leaf fleck, 266 tar spot, 278

Redweed, 826 Redwood, 843

bark eanker, 191 needle blight, 149 seedling blight, 126

Reed, giant, 557 Rehmiellopsis balsameae,

164 Remasan Chloroble M, 15 Reniform nematode,

pineapple, 320 Replis diandra, 552 Resedann, 755 Resisan,10

Rhabdocline pseudotsugae, 298 weirii,299

Rhabdospora rubi, 209 Rhabdovirus, strawberry,

509 Rhamnus, 585

ealifornieus, 625 Rhapis, 780 Rheurn, 828 Rhexia, 752, 826 Rhipsalidopsis, 652 Rhizina indulata, 400 Rhizoctonia, 165, 401

batatieola, 401 eroeorum,373,401 ramicola, 165 rot, 66 solani, 66, 281, 401, 468,

527 pistaehio, 165

tuliparum, 401 Rhizoetoniose, 383 Rhizomatous iris, 717 Rhizome rot, geraniurn, 406 Rhizomonas suberifaciens,

97 Rhizophora, 746 Rhizopus

arrhizus, 402, 403 nigricans, 402 oryzae,403 stolonifer, 165,402, 403

Rhizosphaera kalkoffi, 299 Rhodedendron, eereospora

rhododendri, 247 Rhodesgrass, 826 Rhodianebe, 15 Rhodoeoeeus faseines, 82 Rhododendron, 563, 826

baeterial rot, 91 blight, 125, 129 ehrysomyxa ledi var.

rhododendri,415 eollar rot, 393 dieback, 207 hendersonia eoneentrica,

262 leaf gall, 228 leaf spot, 91, 255, 257, 276 lophodermiurn

sehweinitzii, 265 neerotie ring spot

potexvirus, 507 pestalotia maerotricha, 272 pestalotia rhododendri,

273 wilt, 527 witehes' broom, 230

Rhodotypos, 722 Rhoeo, 827 Rhubarb, 828

anthraenose, 68 ehlorotie ring spot, 507 erown rot, 88 downy mildew, 222 pueeinia phragmitis, 437 ring spot, 507

Rhus, 866 Rhytidhysteron rufulum,

172 Rhytisma

aeerinum, 281 andromedae, 281 bistorti, 281 liriodendri, 281 punctatum, 281 salieinum, 281

Rhytismatales, 46 Ribbon-bush, 828 Ribbon-grass, 828

leaf spot, 259 Ribes, 637, 686 Ribgrass, mosaie

tobamovirus, 507 Riee, wild, 900

anthraenose, 71 blight, 168 brown spot, 95 foliar,95 head blight, 142 helminthosporiurn

sorokiniana, 260 leaf spot, 96 sclerotiumhydrophilurn,

168 smut, 457, 461 stern spot, 96 zonate leaf spot, 143

Riee-paper plant, 829 Riee root-knot nematode,

nutsedge, 315 Riehettsialike bacteria, 82 Ricinus eommunis, 603 Ridamil,15 Ridamil Gold, 15 Ridosin,15 Rignspot tobamovirus,

odontoglossum, 499 Ring disease, hyaeinth, 307 Ring mottle, beet, 481 Ring neerosis, eabbage, 482 Ring nematode, peaeh, 306 Ring pox, apricot, 477 Ring rot

baeterial, potato, 79 tomato, 380

Ring spot, 334

ash, 477 aster, 477 blueberry; 481 carnation, 483 cherry,487 chrysanthemum, 488 citrus, 488, 489 crucifers, 268 dahlia, 493 delphinium, 494 hydrangea, 496 lilac, 497 lily,497 oak, 499 orchid,500 papaya,50l peach,502 peony, 503 peperomia, 503 privet, 505 raspberry, 506 rhubarb,507 schefflera, 507 strawberry, 509 tobacco, 512 tomato, Color Plate 4E, 493,

495,502,513 vanda orchid, Color Plate

1E,lF walnut, 241

Rio Grande disease, lettuce, 103

Riozeb,15 Ripe rot

figs, 367 pear, 381 pepper, 68, 357 toma to, 381

Ripost,16 Risolex,18 River birch, gloeosporium

betularum, 257 Rivina, 833 Robinia, 738

brooming, 507 hispida, 832

Rock-brake fern, 666 Rock-cress, 552 Rock fern, 667 Rock-jasmine, 829 Rock-rose, 829 Rock-spirea, 707 Rocky Mountain juniper

black rnildew, 111 gyrnnosporangiurn

bethelii, 423 Rodazim,7 Rodotorula glutinis, 227 Roesleria hypogaea, 403

Rofon,18 Rohdea, 829 Roko,18 Rollinia, 829 Rolstonia solanacearum, 92 Romanzoffia, 829 Root, hairy, apple, 78 Root irrigator, 26 Root-knot, nematode, 315,

390,391 Root lesions, pine, 369 Root rot

apple, 352, 367 asparagus, 369 avocado, 392 bean,399 bird-of-paradise, 370 birdsfoot trefoil, 380 boxwood, 383 cabbage, 394 calla, 393 cantaloupe, 380 chick-pea, 369 cocklebur, 405 corn,371 cypress, 394 dill,370 fir, 393, 411 flannel bush, 394 ginseng, 119,393 gooseberry, 412 grape,403 hawthorn, 412 leak,399 medicago, 163 melon, 348 mushroom, 350, 356,455 Norfolk-island-pine, 361 parrotfeather, 399 pea,349 peach,361 penstemon, 393 pepperrnint, 369 pine, 361, 393, 395, 397,

398 poinsettia, 356 purslane, 192 redbud,397 sand pine, 397 soybean, 360, 394 spruce, 375 strawberry, 374, 386 sweet peas, 370 tomato, 357,368,398, 399,

400 tulip poplar, 360 turf grass, 376 violet, 373 white pine, 411

Index - 991

Rootlet necrosis, tomato, 395 Rosa, 829 Rosa arkansana, 431 Rosa engelmanii,

phragmidium rosicola, 431

Rose, 230, 829 anthracnose, 472 black spot, Color Plate 6D,

112,113,114-117,266 blight, 125 brown canker, 185-188,

186 cane blight, 158 canker, 180, 182, 183, 188,

196,212 cercospora spot, 247 Christrnas, 616 copper injury, Color Plate

6C coryneurn canker, 187 crown canker, 188 crown gall, 79 cuscuta paradoxa, 218 dieback, 192 downy mildew, 222 European dagger

nematode, 324 graft canker, 183 leaf rust, 430 mosaic, Color Plate 3D, 507 phragrnidium

Americanum, 430 phragmidiurn

montivagum, 430 phragrnidium

rosae-californicae, 431

phragmidium speciosum, 432

phragnidiurn tuberculatum, 432

powdery rnildew, Color Plate5A, SB

pseyocercospora puderi, 247

rust, Color Plate 2A, 2B Rose-acacia, 832 Rose bloom, cranberry, 228 Rose-gentian, 832 Rose grafts, black mold, 292 Rose-mallow, 832

phoma exigna, 241 Rose rnildew, 345 Rose-of-sharon, 703, 833 Roseacacia, 238 Roselle, 832

rnicrosphaera euphorbiae, 341

992. Index

Rosellinia herpobictüoides,l66 necatrix,403

Rosemary, 833 Rosette, 334

lily,497 peach,502 rose, 507

Rosin acids, copper salts, 9 Rosmarinus, 833 Rot, 347-412. Ä.ÄSee also

underÄ.Ä specific plant

African violet, 400 apple,92 Belgium endive, 91 black, crucifers, 97 bulb, onion, 91 chicory,91 corky, lettuce, 97 crown, rhubarb, 88 French endive, 91 grape,357 iris,91 onion bulb, 91 pepper, 68 rhlzoctonia, potatoes, 66 ring, bacterial, potato, 79 skin, sour, onion, 91 soft

calla,85 potato,91

stem adzuki bean, 90 tomato,91

tomato,74 white sapwood, 397 yellow, Dutch hyacinth,

100 Rottobellia, 718 Rotylenchus

blaberus, 321 buxophilus, 321 cristiei, 321 reniformis,320 robustus, 321 uniformis,321

Rouge-plant, 833 Rough bark, cherry, 487 Roundworms, 299. ÄÄSee

alsoÄ.Ä Nematode Rovral,14 Royal fern, 666 Royal palm, 780 Royoc, 760 Roystonea, 780 Rubber-plant, 833

leptostromella elastica, 264

Rubigan,12 Rubu~576,644,824

yellow net bednavirus, 507

Rudbeckia, 833 lacinata, 684

Rue anemone, 834 Ruellia, 834 Rugose ilavirus, citrus, 488 Rugose mosaic

cherry,487 potato,505

Rumble,8 Rumex,834 Rumohra,665 Russet crack, sweet potato,

511 Russian olive, 653, 835

canker, 195, 204, 212 Russian wildrye, leaf spot,

261,285 Rust, 412-414

allspice, 438 astragulus, 443 bamboo,443 bean,443 beet,443 birch leaf, 429 cardusstenniflorus,434 carnation, 443 cedar,475 cedar-apple, Color Plate

2C,475 centaurea, 437 ctückpea, 443 chrysanthemum, 434 com,438 Douglas fir, 428 eggplant, 439 fig,415 fir,439 fuchsia, 439 grass, 438 hemlock, 439 hollyhock, 437 huckleberry, 439 iris,437 jack-in-the-pulpit, Color

PIate 7 A, 7B, 7C, 7D jointweed, 438 larch-willow, 428 lemon grass, 437 nutsedge, 434 pelargonium, 437 poplar,428 puccinia acroptili, 433 rose, Color Plate 2A, 2B snapdragon, 478 spearmint, 437

stone fruits, 442 sunflower, 416, 436 white, 516-517

Rusty mottle, cherry, 487 Rutabaga, 835

anthracnose, 69 Rye, anthracnose, 69 Ryegrass

drechslera siccans, 260 leaf spot, 285

Rymovirus, 59

SAIsan,l1 Sabal,781 Sabendazim, 7 Saccharata, 628 Sadifon,18 Safflower, 835

puccinia caicitrapae var. centaureae, 434

Sage,835 black,835 blue, 835 c1ary,835 root rot, 367 sauceleaf, 835 scarlet, 835

Sage-brush, 836 Sagittaria, 555 Sago-palm, 637 Saguaro cactus, 590 Sailor, 18 Sainfoin, 838 Salal,837 Salix,777,901 Salpiglossis, 837 Salsify, 837

black,838 leaf blight, 170 white rust, 517

Salt bush, 838 Salt cedar, 875 Salt injury, 334 Salvia,835 Sambucus, 654 Sammon's tobamovirus,

opuntia, 500 Sanchezia, 838 Sand cherry, Taphrina

flectans, 234 Sand-myrtle, 838 Sand pine, root rot, 397 Sand verbena, 221, 838 Sandofan,16 Sandvine, 839 Sandwort, 839 Sanguinaria,578 Sanguisorba, 587, 839 Sanitpaulia,537

Sansevieria, 839 Sanspor, 7 Saphire, 12 Sapindus

drummondii, 850 saponaria, 850

Sapium,614 Sapodilla, 839

maravalia sapetae, 441 scab,471

Saponaria, 850 Saprol, 19 Saprolegniales, 37 Sapwood

brownheartrot395 coriolus versicolor, 398 hardwood rot, 376 maple rot, 395 plum rot, 407 white pocket rot, 397

Sarcotrochilia balsameae, 155

Saromyl,15 Sarracenia, 806 Sarsaparilla, 553 Sassafras, 840

tubakia dryina, 238 Satellivirus, 59 Sativa, 606 Sauceleaf sage, 835 Saururus, 840 Saver,15 Savin juniper,

gymnosporangium confusum, 423

Savoy, beet, 481 Saxifraga, 840 Saxifrage, 840

melampsora arctica, 428 Sazole,19 Sbatia,832 Scab,444-452

apple, Color Plate 6F, 446, 451,479

aralila, 473 avocado, 474 camellia,471 camphor-tree, 469 canistel, 471 Christmasberry, 446 citrus, Color Plate 80, 469 English ivy, 473 goldenrod, 473 gooseberry, 474 guava,474 jasmine, 471 lima bean, 472 loquat,446 magnolia, 471

mango,472 mombin, 474 morinda, 474 oleander, 474 pansy, 474 pea,446 pear, 452 poinsettia, 474 pyracantha, 446 sapodilla, 471 violet, 474 willow,446

Scabiosa, 840 Scald,334

leaf, sugarcane, 97 Scale-tip rot, Easter lily, 360 Scaly cap, coniferous wood,

376 Scarborough-lily, 841 Scarlet-bush, 696 Scarlet runner, 570 Scarlet sage, 835 Schefflera, 841

actinophylla,841 altemaria, 239, 240 arboricola, 841 dwarf,841

Schiffnerula pulchra, 112 Schinus, 593 Schizanthus, 587 Schizophyllum, commune,

403 Schizothyrium

gaultheriae, 282 pevexiguum, 227 pomi, 110, 227, 282

Schlumbergera gaertneri, 590

Schrankia, 841 Sciadopitys, 888 Scilla, 841 Scindapsus, 817, 842 Sclerodermatales, 51 Scleroderris

abieticola, 209 largerbergii, 209

Sclerophoma pythiophila, 156

Sclerophthora macrospora, 225

Scleropycnium aureum, 166 Sclerospora

farlowii, 225 graminicola, 225 macrospora, 225

Sclerotinia bifrons, 248 camelliae, 166 clerotiorum, 209

Index. 993

fructicola, 378 geranii, 406 gladioli, 408 homeocarpa, 282,404 intermedia, 404 laxa, 379 libertiana, 404 minor, 168,404, 527 narcissicola, 404 polyblastis, 168 rolfsii, 168 sclerotiorum, 168,404,

405,471 seaveri,148 trifoliorum, 405 whetzelii, 248

Sclerotium bataticola, 168 cepivorum, 405 delphinii, 406 hydrophilum, 168 oryzae,168 rhizodes, 168, 465 rolfsii,153,168,406

Scoleconectria cucurbitula, 203

Scolecosporiella sisyrinchii, 146

Scolecotrichum graminis, 282

Scopella sapotae, 441 Scorch, 234-237

blueberry, 481 iris, 440

Score, 10 Scorias spongiosa, 468 Scorzonera, 838 Scotch pine, lophodermium

seditiosum, 297 Screw pine, 782 Scribner's meadow

nematode, 319 Scrophularia, 669 Scurf,452-454

sweetpotato, 453 Scutellaria, 846 Scutellonema

blaberum, 321 brachyurum, 321 bradys, 321 christiei, 321

Sea-grape, 624,842 black mildew, 112 uredo coccolobae, 443

Sea-kale, 842 Sea-Iavender, 861 Sea-pink, 554 Seaverinia geranii, 406 Sechium, 609

994 • Index

Sedum,842 Seed mold, kidney bean, 287 Seed smut, lupine, 459 Seedling blight

abutilon, 70 black locust, 257 cassia,118 hollyhock, 70 lupine, 165 mallow,70 papaya, 132 pine, 125 redwood, 126

Seedling root rot conifer, 400 tobacco, 408

Seirnatosporium arbuti,251 bermansii, 133 lichehnicola, 133 lichenicola, 196

Seinhorst stubby root nematode, turf, 322

Seiridium cardianle, 184 Selenophoma donacis, 282 Self-heal, 819 Selinon, 11 Sempervivum, 842 Senecio, 618, 842

baeodromus californicus, 414

coleosporium tussilaginis, 417

Senna,602 diplodia coluteae, 139

Sensitive fern, 666 Sentinel, 9 Sentry palm, 780

calonectria colhounii, 242 calonectria crotalariae, 243 caolnectria theae, 243

Septobasidiaceae,49 Septobasidium

burtii,210 castaneum, 210 curtisii,210 pseydopedicellatum, 210

Septocylindrium hydrophylli, 283

Septocyta ruberum, 209 Septogloeum

acerinum, 283 oxysporum, 283 parasiticum, 283 rhopaloideum, 283

Septoria agropyrina, 176,283 apiicola, 168 azaleae, 236

bataticola, 283 calamagrostidis, 283 callistephi, 283 chrysanthemella, 283 citri,284 citrulli, 284 cornicola, 284 cucurbitacearum, 284 cucurbits, 284 cyclaminis, 284 dianthi, 284 dianthus, 284 divaricatae, 284 elymi,177 gladioli, 284 glycines, 284 lactucae, 284 lettuce, 284 loligena, 285 lycopersici,285 macropoda, 177 oudemansii, 285 paeoniae,285 peony, 285 phlogis, 284 phlox, 284 pistaciarum, 285 populicola, 270, 285 querceti, 270 ribis, 270 rubi,285 secails, 285 spraguei, 285 tageticola, 285 tenella, 285 tomato, 285 tritici, 285

Septotinia podophyllina, 169

Sequivirus, 59 Sequoia, 843

canker, 180 dagger nematode, 324 giant, 843 root-knot nematode, 316 seedling blight, 126

Sequoiadendron, canker, 180 Seranade,5 Seriocarpus, 843 Seriridium unicorne, 200 Servazziella longispora, 134 Serviceberry, witches'

broom,110 Sesame,844

leaf spot, 92 stern rot, 373

Sesamum, 844 Sesbania, 701 Sesquicillium buxi, 383

Sesuvium, 844 Setaria, 583 Setaria geniculata, 726 Setosphaeria turcica, 143 Setting, 18 Seytinostroma galactinum,

359 Shakercan,26 Shallot, 844

bacterial blight, 95 bulb rot, 367 cladiosporium allii, 262 puccinia allii, 433 purple blotch, 173 white rot, 405

Shamrock, chlorotic ring spot potyvirus, 507

Shangicide, 17 Shasta daisy, 844 Sheathoid nematode, oak,

309 Shelf fungus, oak, 464 Shepard's purse, 845 Shepherdia, 586 Shinleaf, 820 Shirlan,12 Shoestring sobemovirus,

blueberry, 482 Shoot blight

Colorado blue spruce, 157 lilac, 158 pine, 170 pistachio, 125 poplar,139 tsuga, 170

Shoot dieback, peach, 204 Shoot hypertrophy,

bearberry, 228 Shooting-star, 647 Shortia, 845 Shot berry; 334 Shrub-althaea, 833 Shrub banana, oidium, 342 Sialex, 17 Siberian iris, 717 Sicana, 602 Sicklepod, 602

coffee senna, 118 Sida,845 Sidalcea, 609 Signal,18 Signalgrass, broadleaf, 583 Silene, 845

flower smut, 458 Silk-oak,693 Silk-tassel bush, 676, 845 Silk-tree, 756 Silky sophora, 851 Silky thread blight, 165

Silphium, 846 ascochyta compositarum,

241 Silver-bell, 696 Silver leaf, plum, 407 Silver scurf, potato, 453 Silverberry, 653, 835 Silverleaf, 769 Silvery spleenwort, 665 Silybum, 755 Simmondsia, 722 Sinningia, 683 Sinox, 11 Siro, 10 Sirococcus strobilinus, 170 Sirosporium diffusim, 245 Sirrococcus elavigignenti-

juglandacear um, 170

Sisyrhinchium, 579 Sitka spruce, chrysomyxa

piperiana, 415 Skimmia, 846 Skin rot, sour, onion, 91 Skullcap, 846 Skunk-cabbage, 846 Skyrocket, 680 Slashpine

blight, 140, 142 meloidodera floridensis,

314 Slender false-brome, 583 Slenderflower thistle, 846 Slide pump sprayer, 26 Slide sprayers, 25 Slime mold, 454 Slipperwort, 592 Small flower galinsoga, 847 Small sclerotial neck rot,

onion,354 Smilacina, 847 Smilax,847

cercospora smilacis, 247 florists, 559

Smithantha, 848 Smithiana, 508, 848 Smog injury, 334 Smoke injury, 334 Smoke tree, 848

pileolaria cotini-coggyriae, 432

Smooth bromegrass, 584 Smoulder, narcissus, 404 Smudge,onion, 357 Smut,454-463

com,484 erythronium, 461 gladiolus, 461 onion,460

spinach, 457 spores, 483 wild rice, 457, 461

Smut boil, com, 462 Snake plant, 839 Snakeroot, white, 661 Snapbean

ascochyta phaseolorum, 242

web blight, 152 Snapdragon, 848

anthracnose, 68 crown rot, 380 downy mildew, 220 myrothecium roridum,

271 oidium,342 paratylenchus penetrans,

318 phyllosticta antirrhini, 275 rust, 433, 478 verticillium wilt, 491 wilt, 125

Sneezeweed, 699 Snow blight, conifer, 155 Snow-on-the-mountain, 850 Snowball, spot anthracnose,

474 Snowbell, 867 Snowberry, 849

anthracnose, 474 cercospora symplocarpi,

247 creeping, 615 microsphaera diffusa, 341 puccinia crandallii, 434

Snowdrop, 850 botrytis blight, 126

Snowdrop-tree, 696 Snowflake, 732 Snowmold, 463--466

lawn grass, 466 turf, B, Color Plate 6A,

Color Plate 6A, 6B,466 wheat,466

Soap-plant, 615 Soapberry

cylindrosporium griseum, 136

westem,850 Soapwort, 850 Society garlic, 851 Soft rot

apple, 384 calla,85 Euphorbia trigona, 403 gladiolus, 402 onion,375 potato,91

Index - 995

sweetpotato, 402 Soil rot, sweetpotato, 407 Soilbrom, 20 Solanum

elaeagnifolium, 769 luteovirus, 508 melongena, 652 pseydocapsicum, 721 tuberosum, 814

Solenia anomala, 210 ochracea,210

Solidago, 685 Solomons seal, 851

false,847 Sonchus, 851 Sooty-bark canker, aspen,

181 Sooty blotch

apple, 174 blackberry, 174

Sooty mold, 466-468 alder, 468 gardenia, 467 tulip-tree, 467

Sophora, 851 Sopranebe, 15 Sorbus, 761 Sordariaceae, 45 Sorghastrum, 716 Sorghum, 722

anthracnose, 69 bacterial stripe, 89 chlorotic spot furovirus,

508 mosaic potyvirus, 508 stunt mosaic

nucleorhabdovirus, 508

Sorilan,12 Sorosporium saponariae, 458 Sorre!, 834 Sorrel-tree, 777 Sour gum, 886 Sour orange scab, citrus

scab, 469 Sour rot

citrus, 382 tomato, 382

Sour skin rot, onion, 91 Sourwood, 777

purple blotch, 268 twig blight, 170

Southem bacterial wilt, 92 Southem balsam, lirula

abietis-concoris, 296 Southem blight, 168

St. Johnswort, 168 Southem com rust, 438

996 • Index

Southem fusiform, pine, 418 Southem mosaie

sobemovirus, bean, 479

Southem pine canker, 194 dieback, 194 twig canker, 179

Southem red oak, spot anthracnose, 472

Southem root-knot nematode, peach, 316

Southwestem ponderoa pine, arceuthobium vagina turn, 291

Sowbane, mosaie sobemovirus, 508

Sowthistle, yellow vein nucleorhabdovirus, 508

Soybean,851 anthracnose, 68,71, 74 bacterial blight, 93 bacterial pustule, 99 bacterial wilt, 82 blight, 168 brown spot, 284 brown stern rot, 355 bud proliferation, 106 charcoal rot, 377 cruenta, 269 delayed maturity, 106 dorylaimus, 309 downy mildew, 221 dwarf luteovirus, 508 frog-eye disease, 247 fusarium oxysporum, 367 helminthosporium

vignicola, 250 leaf spot, 279 mosaie potyvirus, 508 phakopsora pachyrhizi,

430 phyllosticta sojieola, 276 pratylenchus safaenis, 319 root rot, 360, 380, 394 stern anthracnose, 71 stern blight, 137 yeast spot, 381 yellow mosaie, 508

Soybean cyst nematode, 310 Spanish bayonet, 906 Spanish broom, 584 Spanish iris, 717 Spanish moss, 853

stern blight, 142 Sparaxis, 853

mosaic, 508 Spartium, 584

Spathiphyllum, 854 Spearmint, rust, 437 Speck, bacterial, tomato, 96 Speckeled tar spot, maple,

281 Speckled leaf blotch, wheat

grass, 177 Speckled mottle umbravirus,

lettuce, 497 Spectro,10 Specularia, 854 SpeedweIl, 891 Spergon,8 Sphacele, 854 Sphaceloma, 67

ampelina, 66 araliae, 473 cercocarpi, 473 hederae, 473 lippiae, 473 menthae, 474 morindae, 474 murrayi,474 oleandri,474 perseae, 474 poinsettiae, 474 psidii,474 punicae, 474 ribis, 474 spondiadis, 474 spp. bignonia, 475 symphoriearpi,474 viburni,474 violae, 474

Sphacelotheca cruenta, 458 reiliana, 458 sorghi,459

Sphaeralcea, 682 Sphaerellaceae, 45 Sphaeriaceae, 45 Sphaeriales, 45 Sphaerioidaceae, 51 Sphaeronema, 321 Sphaerophragmiuym

acaciae, 442 Sphaeropsidaceae,51 Sphaeropsidales,51 Sphaeropsis

canker, 205 hyalina, 192 malorum, 206 quercina, 205 sapinea, 139,170,210 tumefaciens, 231

Sphaerotheca, 346 catagnei,344 fuliginea, 344 fusca,344

lanestris, 344 macularis, 345 mors-uvae, 345 pannosa, Color Plate SA, SB pannosa var. persieae, 345 phytotophila, 346

Sphaerulina polyspora, 170 rubi,286 taxi,170

Sphenospora mera, 442 Spiee-bush, 854 Spiee-lily, 746 Spider-flower, 622 Spider-lily, 854

spiral nematode, 321 Spiderling, 854 Spiderwort, 882 Spike, gray leaf mold, 260 Spikenard, Ameriean, 553 Spilocaea

photinicola,446 pomi, 446, 451 pyracanthae, 446

Spinacea, 855 Spinach, 855

anthracnose,68,71 aphanomyces

cladogamus, 349 blight, 508 cladosporium variabile,

262 downy mildew, 221 fusarium wilt, 526 ilavirus, 508 New Zealand, 768 smut, 457 white rust, 517 wilt, 526 yellow dwarf, 508

Spindle-tree, 661 SpindIe tuber viroid, potato,

Color Plate 3E, 505 Spiny amaranth, 542 Spiraea, 855, 856 Spiral nematode

boxwood, 321 spider-lily, 321

Spirea, oriental flowering, 856

Spiroplasma citri, 106 Spizellomycetales,36 Splanchrorema platani, 199 Spleenwort, silvery, 665 Spondias, 856 Spondylocladium

atrovirens, 453 Spongospora subterranea,

448

Index - 997

Spongy root rot, conifer, 398 hibiscus, 93, 98 nacobbodera chitwoodi, Spongy sap rot, conifer, 364 hibisucs, 91 317 Spore formation, 172 horse-radish, 98 needle cast, 297 Sporidesmium mac1urae, magnolia, 91 needle rust, 415

170 maple,89 Norway, blight, 156 Sporisorium marigold, 96 rootrot369,374,375

cruentum, 458 muskmelon, 92 twig blight, 120 ho1ci-sorghi,458 orchid,68 Spur blight, raspberry, 139 sorphi,459 primrose, 92 Spurge

Sporobolomycetaeceae, 52 radish,98 altemaria angustiovoidea, Sporocybe rhois, 185 rhododendron, 91 239 Sporodesmium scorzonerae, sesame,92 caper,857

170 strawberry, 99 cypress, 857 Sporonema camelliae, 286 sunflower, 93 leafy,858 Sportak,17 sweet com, 90 painted, 858 Spot turnip, 91 prostrate, 858

anthracnose, 67,468-475 vibumum,96 spotted, 858 Chinese holly, 470 watermelon, 92 Squash, 819, 858 dogwood, 469 wild rice, 96 bacterial wilt, 88 evergreen euonymous, zinnia,98 blight,131

469 pepper, cabbage, 91 fruit rot, 131, 366, 367 ledum,471 stern, wild rice, 96 gummy stern blight, 149 linden,473 Spot injury, 335 leaf cur! bigeminivirus, mahogany, 473 Spotless, 10 508 persimmon, 469 Spotrete, 18 mosaic, Color Plate SE, 509 pomegranate, 474 Spotted spurge, 858 mosaic cornovirus, 499, snowball, 474 Spotted wilt, tomato, 57, 513 508 southem red oak, 472 Sprayers,22 root rot, 369 water oak, 472 Spraying, 22 stern blight, 142

bacterial ÄÄ vsA.Ä dusting, 28 wilt, 86 beets, 93 dusting, contras ted, 28 winter, bacterial spot, 99 camation, 96 hand-operated sprayers, Squash-bush, 860 cereal, 89 25 Squaw-apple, 860 com,89 hydraulic sprayers, 23 Squill,841 grass, 89 Sprays Squirrel-com, 651 nasturtium, 93 all-purpose, 29 St. Andrew's cross, 836 pumpkin,99 dusts, 29 St. Augustine grass, 836 sweet com, 90 application techniques, 24 puccinia stemotaphricola, winter squash, 99 containing copper, copper 439

black, delphinium, 93 injury, rose, Color St. John's bread, 600 blister, apple, 94 Plate 6C St. Johnswort, 836 brown pressurized, applicators melampsora hypericorum,

orchid,90 for, 22 428 wild rice, 95 Sprenger, 559 southem bligtht, 168

flower, zinnia, 98 Spring-Bak,16 St. Peterswort, 836 leaf Spring beauty, 622 Stachy, 860

barberry, 90 bromovirus, 508 Staggerbush, 742 basil, 91, 96 Spring dwarf nematode, Stagonospora curtisii, 237 bird's nest fern, 91 strawberry, 303 Stagonosporopsis hortensis, cabbage, 91, 98 Spruce, 856 241 cauliflower, 91 butt rot, 374 Stanleya, 643 celery,93 chrysomyxa ledicola, 415 Staphylea, 860 Chinese cabbage, 91 chrysomyxa moneses, 415 Star cactus, 591 compass plant, 96 chrysomyxa pirolata, 415 Star-of-Bethlehem, 861 crucifers, 91 cytospora canker, 189 leaf spot, 254 cucurbits, 93 lophodermium filiforme, Starflower, 861 dracaena,88 297 stern smut, 460 English ivy, 100 lophodermium piceae, Stargrass, 861 geranium,91,99 297 golden,861

998 • Index

Statice, 861 downy mildew, 222 witches' broom, 106

Steccherinum septentrionale, 406

Steceherinum abietis, 406 Stegophora ulmea, 258 Steironema, 739 Stellaria, 612 Stern anthracnose, 71

bean, 71 c1overs,71 lentil,71 lima bean, 71 soybean,71

Stern blight asparagus fern, 120 azalea,l71 eupatorium, 125 phlox, 164 pumpkin, 142 soybean, 137 Spanish moss, 142 squash,142

Stemcanker black walnut oak, 195 castorbean, 178 flannel bush, 394 labumum, 192 morning glory, 213 peanut, 195 pointsettia, 195 prickly-ash,192 sweetpotato, 195 texasweed,178

Stern disease, phlox, 307 Stern gall, ragweed, 231 Stern lesion, sunflower, 119 Stem-pitting, apple, 476 Stern rot

adzukibean,90 African violet, 124 birdsfoot trefoil, 380 cacti,373 celery, 404 cocklebur, 405 exacum,369 lettuce, 404 lily,392 lupine, 400 parrotfeather, 399 pepper, 404 poinsettia,349,401 sesame,373 sunflower, 388 sweetpotato, 367 tomato,91

Stern rust, grain, 435 Sternsmut

anemone, 460 starflower, 460

Stern spot California poppy, 262 wild rice, 96

Stern wilt, asparagus, 369 Stemphylium

blight, onions, 171 bolickii, 287 botryosum, 279,287 callistephi, 287 cucurbitacearum, 287 lycopersici, 287 sarcinaeforrne, 279 solani, 287 vesicarium, 171

Stenanthium, 862 Stenier's spiral nematode,

309 Stenocarpella maydis, 363 Stenolobium, 862 Stenotaphrum, 836 Stephanomeria, 862 Stereum

fasciatum, 407 hirsutum, 407 purpureum, 407

Stembergia, 862 Stevia, 862 Stewart's disease, com, 88 Sthughesia juniperi, 111 Stictidiaceae, 46 Stigmateae,44 Stigmea

geranii, 287 rubicola, 287

Stigmella platani-racemosae, 288

Stigmina carpophila, 133 liquidambaris, 256

Stigminia platani racemosae, 288

Stigmonose, 335 Stilbaceae, 52 Stilbellaceae, 52 Stillingia, 863 Stirnina palmivorum, 256 Stinking smut, 460 Stippen, 326 Stizolobium, 889 Stock,863

bacterial blight, 100 mosaic,509 myrothecium roridum,

271 Stokes-aster, 863 Stokesia, 863 Stone fruit

bacterial canker, 94 bacterial spot, 102 brown rot, 378 rust, 442

Stone plant, 863 Stonecrop, 842 Stonemint, 647 Stony pit, pear, 503 Storage rot

apple, 386 carrot, 354, 470 sweetpotato, 380 tomato,411

Strangler fig, leaf spot, 274 Stranvaesia, 864 Strawberry, 864

angular leaf spot, 99 anthracnose, 67,68 black root, 318 blossom blight, 132 Chamber's dagger

nematode, 324 clover proliferation, 104 colletotrichum, 67 crinkle, 509 diplocarpon earlianum,

235 downy mildew, 221 European dagger

nematode, 324 fruit spot, 250 gnomonia comari, 258 gnomonia fragariae, 258 green petal, 106 leaf blight, 136, 157 leather rot, 392 mild crinkle, 509 mold,292 mottle,509 multiplier disease, 509 mycosphaerella fragariae,

269 necrotic shock, 509 pallidosis virus, 509 petiole rot, 386 pezizella oenotherae, 273 pseudo mild yellow edge

carlavirus, 509 purple leaf spot, 270 red stele disease, 394 rhabdovirus, 509 root rot, 374, 386 spot anthracnose, 472 spring dwarf nematode,

303 stunt, 509 sununer dwark nematode,

303 veinbanding

caulimovirus, 509 witches' broom, 510 yellow edge, 509, 510

Strawberry-tree, 866 Strawflower, 866 Streak

camation, 483 cocksfoot, 492 pea, 501 phlox, 503 potyvirus, 476 raspberry, 506 rose, 507 tobacco, 509,512 tomato, 514 wheat, 515

Strelitzia, 575 Streptanthera, 866

mosaic,510 Streptobotry arisaemae, 128 Streptocarpus, 866 Streptomyces

acidiscabies, 448 ipomoea, 407 scabies, 448

Streptomycin, 21 Streptopus, 866 Streptosolen jamesonii, 584 Strike,18 String butt rot, conifer, 398 String of pearls, 465 Stripe

com,89 maize,498

Stripe rust, wheat, 439 Stripe smut, grass, 461, 463 Striped chlorosis

badnavirus, mimosa, 498

Strobilurin, 5, 14, 19 Stroby,14 Stromatinia

gladioli, 408 narcissi, 408

Strophostyles, 866 Strumella

canker,211 coryneoidea, 211

Stubbom disease, citrus, 489

Stubby twig, peach, 502 Stunt

blueberry, 106, 482 chrysanthemum, Color

Plate 3A, 3E, 488 com,104,106 maize,498 peanut, 502 ratoon, sugarcane, 82

sorghum, 508 strawberry, 509

Stunting closterovirus, alligatorweed,476

Stunting disease, bermuda grass, 82

Stylosanthes, 867 Styrax, 867 Subalpine fir, brown pocket

rot, 373 Subdue,15 Subdue Maxx, 15 Subterranean clover, red leaf

luteovirus, 510 Sugar, cristulariella

depraedans,251 Sugar beet

aphaomyces cochlioides, 349

false root-knot nematode, 317

nematode, 312 Sugar palm, 781 Sugarberry, 695 Sugarcane

bacilliform badnavirus, 510

leaf scald, 97 ratoon stunt, 82 stylet nematode, 323

Sulfur, 18 Sulfur injury, 335 Sulphur fungus, maple, 397 Sultan, 715 Sumac,866

canker, 185 cuscuta exaltata, 217 pileolaria patzcuarensis,

432 Sumi-8,1O Sumilex,17 Summer-cypress, 726 Summer dwark nematode,

strawberry, 303 Summer-hyacinth, 675 Summer patch, grass, 377 Summer squash

gummy stern blight, 149 powdery mildew, 344

Sun blotch viroid, avocado, 477

Sunchus, yellow net nucleorhabdovirus, 508

Sunflower, 231, 868 ascochyta compositarum,

241 black patch, 107 blight, 156

Index - 999

bud rot, 125 canker, 191 charcoal rot, 377 head rot, 403 leaf spot, 93 mosaic potyvirus, 510 rust, 416, 436 stern lesion, 119 stern rot, 388 wilt,86

Sunrose, 869 Sunscald, 335

tomato, 440 Sunstroke, 335 Super CU, 9 Suzu H, 19 Swamp-bay, 826 Swamp-lily, 840 Swamp-privet, 671 Swampbay, black mildew,

112,113 Swan river daisy, 583 Swedish ivy, 866 Sweet acacia, 713 Sweet alyssum, 869 Sweet bay, 728 Sweet cherry, twig blight,

148 Sweet clover,

nucleorhabdovirus, 510

Sweet com, 628 crown rot, 374 downy mildew, 222 leaf spot, 90 phaeosphaeria maydis,

274 phoma terrestris, 388

Sweet-fem, 869 Sweet-fem blister rust, pine,

417 Sweet-flag, 869 Sweet gale, 869 Sweet gum, 870

bleeding canker, 206 hymenochaete canker, 197 leaf spot, 256 leptothyrella

liquidambaris, 264 root rot, 361

Sweet marjoram, 776 Sweet-olive, 870 Sweet onion, 892 Sweet pea, 871

blossom blight, 125 cercospora lathyrina, 246 fasciation, 82 phaeoisariopsis griseda,

263

1000 • Index

Sweat pea (cont.) root rot, 370 white mold, 293

Sweet pepperbush, 623 Sweet-root, 873 Sweet vetch, 873 Sweet William, 873

fusarium wilt, 523 Sweetleaf, 870

bud gaU, 228 Sweetpotato, 871

black rot, 355 caulimovirus, 510 dorylaimus, 309 dry rot, 362 feathery mottle potyvirus,

510,511 foot rot, 396 internal cork, 510 leaf spot, 283 mold,291 mosaic,511 pox,407 russet crack, 511 scurf,453 soft rot, 402 stern canker, 195 stern rot, 367 storage rot, 380 white rust, 517

Sweetshrub, 595 Swietenia, 744 Swiss chard, 874 Switchgrass, 874 Sword bean, 720 Sword fern

anthracnose,74 tip blight, 74

Sycamore, 807,874 American, 807 anthracnose, 75 California, 807 canker, 181

Sydowia dothideoides, 193 polyspora, 212

Syllit,l1 Symphoricarpos, 849

occidentialis, 903 orbiculatus, 627

Symplocarpus,846 Symplocos, 870 Syncarpia, 887 Synchytrium

anemones, 231 aureum,231 endobioticum, 231 vaccinii, 232

Syngonium, 874

cephalosporium cinnamomeum,244

Synthyris, 874 Syringa,733 Systhane, 16 Systremma acicola, 171

Tabebuia, 874 prospodium plagiopus,

433 Tabernaemontana, 875 Tachigaren,14 Taenidia, 875 Tagetes, 749 Tahitian bridal veil, 875 Taifer,17 Tairel, 5, 13 Tallowtree, Chinese, 614 Tamarind, 875 Tamarindus, 875 Tamarish, 875 Tamarix, 875 Tanbark oak, 737 Taphrina

caerulescens, 232 carnea,233 castanopsidis, 233 communis, 233 confusa,234 coryli,233 deforrnans, 233 farlowii, 234 faulliana, 234 flava,234 flectans, 234 japonica, 234 populina, 234 robinsoniana, 234 thomasii, 234 ulmi,234 weisneri, 234

Taphrinaceae, 42 Taphrinales, 42 Tarspot

aster, 278 azalea, 267 bog rosemary, 281 goldenrod, 278 lyonia, 281 maple, 281, 295 persimmon, 267 pines, 296 polygonum, 281 redtop grass, 278 tulip-trees, 255 willow, 281

Taraxacurn, 641 Tarjan's sheath nematode,

celery,310

Tassel-tree, 676 Tasselflower, 656 Tatter leaf cappillovirus,

citrus, 489 Taxodium, 564 Taxus, 905 TBZ,18 Tea,876 Teaberry, 676 Teasel, 875

mosaic potyvirus, 511 Tebuconazole, 18 Tecoma

prospodium appendiculatum, 433

prospodium transformans, 433

Tecomaria, 598 Teliospores, 477 Tellima, 876 Telone,21 TeloneC,8 Telone 11 Soil Fumigant, 21 Temik,21 Tennessee Brand Tri-Basic

Copper Sulfate 53 Wp,9

Tepary bean, 570 Teremec Sp, 8 Termil,8 Tern, 12 Ternstroemia, 876 Terr-O-Cide 11, 16 Terr-O-Gas, 16 Terrachlor Super X, 11 Terracur, 21 Terraneb,8 Terrazole, 11 Terreya taxifolia, 295 Tersan,5 Tesselate stylet nematode,

322 Tetragonia, 768 Tetrapanax, 829 Teucrium, 679 Texas bigeminivirus, pepper,

503 Texas bluebeU, 662 Texas mistletoe,

phoradendron tomentosum, 290

Texas root rot, 388 Texasweed, 876

stern canker, 178 Thalia, 876 Thalictrum, 752

leaf gall, 231 Thalonil,8 Thames' root-knot

nematode, Chinese silk-plant, 315

Thanatephorus cucumeris, 165 cucumerus, 383

Thanetephorus, cucumeris, 152

Thea sinensis, 876 Thecaphora deformans, 459 Thelephora

spiculosa, 171 sterrestris, 171

Thelephoraceae, 50 Theobroma cacas, 624 Thermopsis, 876 Thiabendazole, 18 Thiazole,19 Thielaviopsis basicola, 408 Thionic,19 Thiophal, 13 Thiophanate

ethyl, 18 methyl,18

Thiram,18 Thiram plus cadmium

chloride hydrate, 18 Thistle, 877

milk,755 slenderflower, 846

Thistle musk, 877 Thlaspi, 877 Thorne's needle nematode,

peppermint, 314 Thornless blackberry, canker,

180,194,195,198 Thorn's meadow nematode,

wheat, 319 Thoroughwax, 877 Thread blight, 133

fig,152 tung, 152

Threshing, mechanical injury, baldhead, 326

Thrift,554 Thuja,553 Thujopsis, 877 Thunbergia, 877 Thyme,878 Thymus,878 Thyronectria

Austro-Americana, 212 balsamea, 200, 203 berolinensis, 212

Tiarella, 671 Tibouchina, 683, 878 Tichodorus primitivus,

322 Tickseed, 627 Tidestrominia, 878

Tidy-tips, 729 Tiger-flower, 878 Tigre bigeminivirus, pepper,

503 Tigridia, 878

mosaic,511 Tilia,735 Tillandsia, 853 Tilletia

buchloeana, 459 caries, 459 foetida, 460 pallida, 460

Tilletiaceae, 49 Timber rot, dead sapwood,

376 Tip blight

balsam fir, 164 Boston fern, 74 boxwood, 156 conifer, 154 crape-myrtle, 157 dracaena,158 fern, 157 fir, 136 poinsettia, 125 sword fern, 74

Tipburn, 335 Tirpate,22 Tithonia, 878 TNCS53,9 Toadstool disease, 350 Tobacco

blackfire, 90, 96 blue mold, 222 broad ring spot, 511 brown spot, 239 cyst nematode, 312 etch potyvirus, 511 flowering, 768 leaf spot, 281 mild green mosaic

tobamovirus,511 mosaic tobamovirus, 511 necrosis necrovirus, 514 ozone injury, 431 rattle tobravirus, 503, 512 ring spot nepovirus, 512 seedling root rot, 408 streak ilavirus, 509, 512 vein mottling potyvirus,

512 wildfire, 96 yellow net luteovirus, 512,

514 Tobamovirus, tomato, 513 Tolclofos-methyl, 18 Tolmiea, 801

sphaerotheca, 346

Index. 1001

Tomato, 878 anthracnose, 68, 71, 74 aphanomyces

cladogamus, 349 aspermy cucumovirus,

512 awl nematode, 308 bacterial canker, 79 bacterial speck, 96 bacterial spot, 102 bigbud,512 black ring nepovirus, 512 blight, 119, 164 blossom-end rot, 401 branched broomrape, 177 buckeye rot, 392 bushy stunt tombusvirus,

513 didymella Iycopersici, 241 double streak, 514 enation mosaic, 513 fernieaf, 513 fruit rot, 354, 395 fusarium wilt, 524 helicotylenchus

pseudorobustus, 309 infections chlorosis

closterovirus, 513 isaria rot, 375 late blight, 159-163, 160 leaf mold, 293 leaf spot, 287 Louisiana broomrape, 177 mosaic,494 mosaic tobamovirus, 513 nailhead spot, 240 necrosis neopvirus, 514 oidium,343 olipidium brassicae, 382 phoma rot, 387 postharvest rot, 380 powdery mildew, 340 pseudo curly top

hybrigeminivirus, 513 pseudomonas syringae pv,

91 ring rot, 380 ring spot, Color Plate 4E,

493, 495, 502, 513 ripe fruit rot, 381 root rot, 357, 368, 398, 399,

400 rootlet necrosis, 395 septoria leaf spot, 285 spotted wilt, 57, 513 stern rot, 91, 404 storage rot, 411 streak,514 sunscald, 440

1002 • Index

Tomato (cont.) verticillium wilt, 486 watery fruit rot, 382 weed-killer injury, 447 western yellow blight, 514 wilt,524 yellow net, 514 yellow top, 514

Top-spotting badnavirus, kalanchoe, 497

Topple, gladiolus, 335 Topsin, 18 TopsinM,18 Torch-lily, 726 Torena, oidium, 343 Torenia, 881 Torilis, 699 Toronto creeping bentgrass,

bacterial wilt, 82 Torreya, 882

caeomatorreyae,414 Torula maculans, 294 Tospovirus, 57 Toyon,801 TPTH,19 TPTOH,19 Tracheiphilum, cowpea, 526 Trachelospermum, 627 Trachymene, 580 Tradescantia, 514, 882 Tragopogon, 837 Trailing arbutus, 658 Trailing four-o' dock, 540 Trametes pini, 366 Trametes suaveolens, 409 Trametes versicolor, 398 Transvaal daisy, 679 Tranzschelia

discolor, 442 pruni-spinosae var.

discolor, 442 pruni-spinosae var. typica,

442 Trautvetteria, 882 Trecatol,5 Trechispora alnicola, 227 Tree fern, 666 Tree-huckleberry, 663 Tree-of-heaven, 538 Tree-poppy, 882 Tree-tomato, 882 Treemallow, 729 Trefoil, 882 Trembling fungi, 50 Tremellales, 50 Tri-Clor,8 Tri-VCI3,21 Triadimefon, 18 Triadimenol, 18

Trianthema, 711 Triarimol, 19 Triasyn,11 Triathlon, 5, 20 Triaxine, 11 Triazine,5 Triazole, 6, 9, 10, 11, 12, 13,

16,17,18 Triazophos, 22 Tribulus, 819 Trichaptum abietinum, 398 Trichocomaceae,43 Trichoderma

harzianum,19 viride, 409

Trichodex,19 Trichodorus obtusus, 322 Trichosanthes, 687 Trichoscyphella hahniana,

190 Trichostema, 579 Trichothecium roseum, 212,

411 Trichothyriaceae, 44 Tricop,9 Tricydazole,19 Tridan, 18 Tridemorph, 19 Trientalis, 861 Trifloxystrobin, 19 Triflumizole,19 Trifmine, 19 Trifocide, 11 Triforine, 19 Trifrina, 11 Trifungoi, 12 Trigger sprayer, 26 Trillium, 883 TrimangoI, 15 Triosteum, 711 Triphenyltin

acetate, 19 hydroxide, 19

Triphragmium, ulmariae, 442

Tripie Tin, 19 Tristeza dosterovirus, citrus,

489 Tritoma, 726 Tritonia, 883

mosaic,514 Trizole,19 Trollius, 883 Trombone sprayers, 25 Tropaeolum, 766 Trotis,17 Trout-lily, 660 Truban,11 Trumpet-creeper, 883

Trumpet-tree, 874 Trumpetvine,883

leaf blight, 131 Trunk canker, apple, 208 Tryb lidiella rufula, 172 TS-53 WP,9 Tsuga, 700

shoot blight, 170 Tubakia dryina, 238, 264, 278 Tuber rot, caladium, 369 Tuberaceae, 47 Tuberales, 47 Tubercularia ulmea, 212 Tuberculariaceae, 52 Tuberose, 883

wild,746 Tubothane, 15 Tubotin,19 Tuburcinia trientalus,

starflower, 460 Tulare, 514

apple, mosaic ilavirus, 476 Tulbaghia, 851 Tulip, 884

anthracnose, 72 basal rot, 367 blindness, 327 botrytis blight, 123 breaking potyvirus, 514 gray bulb rot, 401

Tulip break, lily latent mosaic virus, Color Plate le, lD

Tulip fire, botrytis tulipae, 128

Tulip poplar, root rot, 360 Tulip-tree, 884

leaf spot, 281 mycosphaerella

liriodendri, 269 root rot, 361 sooty mold, 467 tar spot, 255

Tulipa, 884 Tung

canker, 206 thread blight, 152

Tung tree, 885 Tupelo, 886

aplopsora nyssae, 414 leaf spot, 278 mycosphaerella

nyussicola, 270 Tupidanthus, 886 Turdacupral, 9 Turf, 689-692

bird's nest fungus, 225 blight, 147, 149, 155 copper spot, 257, 280

dollar spot, 404 hoplolaimus galeatus, 313 pink patch, 359 root rot, 376 Seinhorst stubby root

nematode, 322 slime mold, 454 snowmold, B, Color Plate

6A, Color Plate 6A, 6B, 466

tylenchorhynchus maximus, 323

Turfcide,8 Turkeybeard,904 Turnip, 835, 886

anthracnose, 69 boron deficiency, 328 cercosporella brassicae,

248 leaf spot, 91, 102 mosaic potyvirus, 482, 515 powdery mildew, 339 white spot, 244

Turocystis anemones, 460 Turpentine tree, 887 Turtle-head, 887 Tussilago, 626 Twigblight

ailanthus,l42 ailanthusedit, 142 American bladdernut, 133 arbovitae, 124 bladdernut, 145 blueberry, 137, 157 Chinese elm, 157 citrus,l72 dogwood,132,134,150 Japanese honeysuckle, 156 kerria, 156 maple, 156 mulberry, 150 oak,134,140 oxydendron, 170 pear, 156 persimmon, 156 sourwood,170 spruce, 120 sweet cherry, 148 vinca, 132 yew, 157

Twigcanker acacia, 195 black cherry, 191 elm, 179 hemlock, 191 oak,208 peach,195 southern pine, 179 white oak, 208

willow, 193 Twig dieback, fir, 212 Twin-flower, 736 Twinflower, 649 Twisted leaf, cherry, 487 Twisted-stalk, 866 Tylenchorhynchus

annulatus, 323 brevidus, 322 capitatus, 322 claytoni,322 dubius, 322 martini, 323 maximus, 323

Tylenchulidae, 314 Tylenchulus semipenetrans,

323 Tympanis confusa, 212 Typha,604 Typhon, 18 Typhula

idahoensis, 466 incarnata, 466

Udo, 553, 888 Ulmus, 655 Ulocladium cucurbitae, 288 Umbellularia, 593 Umbrella-pine, 888 Umbrella tree, alternaria,

240 Umbrellawort, 888 Uncinula

adunca,347 circina ta, 346 clintonii, 346 flexuosa, 346 macrospora, 346 necator, 346 parvula, 347 prosopidis, 347 salicis, 347

Uncinuliella flexuosa, 346 Unicorn-plant, 888 Unicrop,15 Unix, 10 Urd bean, 571 Uredinales,49 Urediniomycetes, 48 Uredinopsis

macrosperma,443 osmundae, 442 phegopteridis, 443 pteridis, 443 struthiopteridis, 443

Uredo artocarpi, 443 coccolobae, 443 ericae,443

Index. 1003

phoradendri, 443 sapotae, 441

Urocystis agropyri, 460 colchici, 460, 461 gladiolicola, 461 kmetiana, 461 magica,460 trientalus, 460 tritici, 461

Uromyces appendiculatus,443 appendiculatus var.

appendiculatus,443 betae,443 caladii, Color Plate 7 A, 7B,

7C, 7D caryophyllinus, 443 ciceris-arietini, 443 costaricensis,443 dianthi, 443 fabae,443 galii -californici, 443 phaseoli,443 punctatus, 443 sp., birdsfoot trefoil, 444 trifolii, 444

Uropyxis daleae var. eysenhardtiae,

444 eysenhardtiae,444

U.S. Environmental Protection Agency, 30

Ustilaginaceae,48 Ustilaginales, 48, 49 Ustilago

avenae,461,463 buchloes, 461 bullata, 461 esculenta, 461 heufleri, 461 hordei,461 kolleri,461 maydis, 462 mulfordiana, 463 perennans, 461 segetum,462 striiformis, 463 violacea, 463

Ustomycetes,48 Ustulina deusta, 411 Uvularia, 888

Vaccinium, 578, 631, 900 arboreum, 663

Vaidacin,19 Valerian, 889

red,889 Valeriana, 889

1004 • Index

Valerianella, 889 Valida,19 Validamyein, 19 Valimum,19 Vallota, 841 Valsa

cineta, 213 leucostoma, 213 salicina, 213

Valsaceae, 45 Vancouveria, 889

Vanda ring spot, Color Plate 1E, 1F

Vangard,10 Vanilla,889 Vanilla-Ieaf, 889 Varicosavirus, eamellia, 482 Variegation, 335

blackberry, 481 ilavirus, citrus, 488 infectious, lonicera, 498

VC13 Nematicide, 21 Vein banding

pepper, 503 potato, 505 strawberry, 509

Vein chlorosis chlosterovirus, diodia,494

Vein clearing cherry,487 malva,498

Vein enation, citrus, 489 Vein mosaic carlavirus

clover,490 red clover, 507

Vein mosaic potyvirus, wisteria, 515

Vein mottle potyvirus carnation, 483 tobacco, 512

Vein necrosis carlavirus, muskmeion, 499

Velvet bean, 889 Velvet leaf, 534

colletotrichum eoccodes, 250

Venturia cerasi, 451 chlorospora, 446 inaequalis, Color Plate 6F,

451, 479 pyrina,452

Venturol, 11 Venus looking-glass, 854 Venus's flytrap, 890 Veratrum, 890 Verbascum,764 Verbena, 890

hortensis, 890 Verbesina, 891 Vermicularia ipomoearum,

213 Vernonia, 718 Veronica, 891

fusarium wilt, 524 peronospora grisea, 221 wilt, 524

Veronieastrum, 636 Verticicladieila, procera, root

rot, 411 Verticicladiella

abietina, 411 penicillata, 411 wagenerü, root rot, 411

Verticillium albo-atrum, 528-529 fungicola, 529 wilt, 528-529

potato, 490 snapdragon, 491 tomato,486

Verticillum, dahliae, 529 Vetch,891

chocolate leaf spot, 242 crown, 635 kidney,725 leaf blight, 120 sweet, 873

Viburnum,891 aecidium rubromaculans,

414 downy mildew, 223 leafblight, 148 leaf spot, 96 tinus, 729

ViCad,7 Vicia, 891 Vicuron,17 Vidalia, 892

bulb rot, 354 Vigna,571

sesquipedalis, 571 sinensis, 630

Viguiera,684 Vinca, 892

canker, 205 diebaek, 205 twig blight, 132

Vineetoxicum, 893 Vmclozolin,19 Viola

gray mold, 125 odorata, 893 tricolor, 782

Violet, 893 African, 537 anthracnose, 71

dogs-tooth,660 leaf spot, 119 root rot, 373, 401 scab,474

Vipers-bugloss, 894 Virescenee, horseradish,

106 Virgella, robusta, 296 Virginia, cowslip, 755 Virginia creeper, 894

elsinoe parthenocissi, 472 Virgins-bower, 622 Virocides, defined, 1 Virus A, potato, 505 Viruses,55-61,475-516 Vitavax,8 Vitex, 895 Vitis, 688 Volutella

buxi, 172,213 pachysandrae, 173

Vondozeb Plus, 15 Vorlex,22 Voronit,13

Wake-robin, 883 Wakil,16 Waldsteinia, 567 Walking fern, 667 Wallflower, 895

ascochyta cheiranthi, 241 Walnut, 895

anthracnose, 75 blight,100 branch wilt, 526 brooming disease, 515 canker, 199 cylindrosporium

juglandis, 136 dieback, 192 leaf spot, 267 pratylenchus musicola,

318 ring spot, 241

Walnut meadow nematode, 319

Wampi,622 Wandering jew, 882 Wandflower, 853 Wart, peach, 502 Washington palm, 96, 781

cylindrocladium pteridis, 252

Washingtonia, 781 Water-cress, 897 Water deficiency, 335 Water dragon, 840 Water-elm, 897 Water-horehound, 897

Water hyacinth, 897 aquathanatephorus

pendulus, 165 cercospora piaropi, 247

Water-lily, 897, 898 dichotomophthoropsis

numphaearum,253 Wateroak

feIt fungus, 210 spot anthracnose, 472

Water-primrose, 899 Water shield, 253, 899 Waterleaf,714 Watermeion, 898

angular leaf spot, 92 anthracnose, 69, 70 cercospora citruIlina, 245 cribopeltis citrullina, 227 curly mottle

bigeminivirus, 515 fusarium wilt, 525 gummy stern blight, 149 leaf spot, 284 mosaic potyvirus, 515 pythium periplocum, 399 root rot, 348, 380 wilt, 525, 527

Watery fruit rot, tomato, 382 Watery leak

leak,399 potato, 399

Watsonia, 899 Wax myrtle, 899

black rnildew, 111 Pacific, 778

Waxflower, 903 Waxgourd, Chinese, 614 Web blight, 133

bean,66 lima bean, 152 snap bean, 152

Web blotch, peanut, 176 Weed-killer injury, 336

tomato, 447 Weigela, 900 West African spiral

nematode, banana, 321

West Indian holly, 707 blight, 163 leaf spot, 163

Western dwarf mistletoe, arceuthobium campylopodum, 291

Western gall rust paintbrush pine, 417 pine-pine gall rust, 421

Western larch blight, 200

needle cast, 297 Western maple, leaf blister,

232 Western osier dogwood, 649 Western soapberry, 850

cylindrosporium griseum, 136

Western wheat grass, yellow gum disease, 82

Western wild cherry, Taphrina flectans, 234

Western X-disease, peach, 104

Western yellow blight, tomato, 514

Western yellow pine, canker, 179

Western yellows luteovirus, beet, 481

Wetwood elm,88 poplar,79

Wheat anthracnose, 69 dwarf bunt, 459 flag smut, 460, 461 nematode, 302 snowmold, 466 streak mosaic rymovirus,

515 stripe rust, 439 Thorn's meadow

nematode, 319 Wheatgrass

brown leaf blotch, 176, 283 phyllachora graminis, 275 speckled leaf blotch' 177 yellow gum disease, 82

Wheelbarrow sprayer, 25, 26 Whipplea, 900 White-alder, 623 White blister, 516 White clover, mosaic

potexvirus, 515 Whitefir

canker, 204 needle cast, 296

White heart rot, hardwood, 411

White leaf spot, mustard greens,279

White line mosaic, 515 maize,498

Whitemold narcissus, 280 sweet pea, 293

Whiteoak tubakia dryina, 264 twig canker, 208

Index - 1005

Whitepine blister rust, 418 blister-rust, 190 root rot, 411

White rot, 397 apple, 359 aspen, 360 black ash, 397 cherry, 398 conifer, 366 fig,403 grapes, 358 hardwood, 358, 361, 370,

376 heartwood, 365 maple,397 onion,405 sapwood, 397 willow,409

White rust, 516-517 chrysanthemum, 437 crucifers, 516 four-o'clock,517 portulaca, 517 salsify,517 spinach, 517 sweet potato, 517

Whitesmut boltonia, 456 calendula, 456

White snakeroot, 661 White spot

plum, 504 turnip,244

White streak, narcissus, 499 White tip blight, grass, 168 White-topped aster, 843 Whitlow-grass, 650 Whortleberry, 900 Wild rice, 900

anthracnose, 71 blight, 168 brown spot, 95 foliar,95 head blight, 142 helminthosporium

sorokiniana,260 leaf spot, 96 sclerotiumhydrophilum,

168 smut, 457, 461 stern spot, 96 zonate leaf spot, 143

Wildfire, tobacco, 96 Wildrye, 901 Willow, 901

black canker, 206 bleeding canker, 206 canke~ 185,190,213

1006 • Index

Willow (cant.) dieback, 213 feit fungus, 210 gray scab, 474 leaf spot, 253 powdery mildew, 347 scab,446 tar spot, 281 twig canker, 193 white wood rot, 409

Willow-herb,658 Wilt, 517-430

Arizona purple top, 106 asparagus, 369,523 aster, 523 baby's breath, 527 bacterial

bean,82 carnation, 90 cocurbits, 88 corn,88 cucumber, 88 kidney bean, 82 lima bean, 82 muskmeion, 88 pumpkin,88 Southern,92 soybean,82 squash,88 Toronto creeping

bentgrass, 82 banana,524 basiI, 522 bean,82 blue laceflower, 527 broad bean, 482 cabbage, 523 carnation, 90, 524 cattela orchid, 523 celery, 523 cephalosporium, 522 chick-pea, 526 chili pepper, 522 chrysanthemum, 368, 523 cocurbit, 88 corn,88 cowpea,526 creeping bentgrass, 82 cucumbe~88,524 cyclamen, 524 draceana, 86 erythroxylum, 524 exacum,369 fabavirus, broad bean, 482 fusarium, 523

asparagus, 523 banana, 524 carnation, 524 chick-pea, 526

chili pepper, 522 chrysanthemum, 523 cowpea, 526 cucumber, 524 cyclamen, 524 erythroxylum, 524 hebe buxifolia, 524 lettuce, 524 mimosa,525 muskmeion, 525 pea,526 radish,526 spinach, 526 sweet william, 523 tomato, 524 veronica, 524 watermeion, 525

hebe buxifolia, 524 ice plant, 527 kalanchoe, 86 kidney bean, 82 laceflower, 527 lettuce, 102, 524, 527 lima bean, 82 lupine, 527 maple, 528-529 mimosa, 525 muskmeion, 88, 525 nicotiana, 527 oak,518 orchid,523 pea,501,526 peanut, 527 persimmon, 518 pineapple, 503 potato, 490 pumpkin,88 pyracantha, 522 radish,526 rhododendron, 527 snapdragon, 125,491 Southern,92 soybean,82 spinach, 526 squash, 86, 88 sunflower, 86 sweet William, 523 sweet william, 523 tomato, 57, 486, 513, 524 Toronto creeping

bentgrass, 82 veronica, 524 verticillium, 528-529 walnut, 526 watermelon, 525, 527 zucchini squash, 86

Wine-flower, 854 Wineberry virus, 515 Winged bean, 902

Winged elm, uncinula macrospora, 346

Winged loosestrife, 742 Winter cress, 902 Winter injury, 336 Winter squash, bacterial

spot, 99 Winterberry, 902 Wintergreen, 676,902,903

black mildew, 113 leaf spot, 282

Wire-Iettuce, 862 Wisteria, 903

leaf spot, 276 mosaic,515 vein mosaic potyvirus,

515 Witch-hazel, 903

leaf spot, 259, 276 Witches' broom, 295

ash, 103,477 cedar, 426 cherry, 234 cherry-Iaurel,234 coulter, 295 gymnosporangium ellisii,

423 holodiscus, 496 Japanese persimmon, 106 juniper, 424, 426 lilac, 497 locust, 498 pigeon pea, 106 potato, 505 rhododendron, 230 serviceberry, 110 statice, 106 strawberry,510

Witchweed, 530 Witloof chicory, 657 Wolfberry, 903

cercospora symplocarpi, 247

puccinia crandallii, 434 Wolfiporia cocos, 398 Wood-betony, 904 Wood fern, 667 Wood-nymph, 759 Wood rot. ÄÄSee alsokÄ

White rot apple, 375 ash,362 birch,407

Wood-sorrel, 777 Wood-waxen, 677 Woodland-star, 737 Woodrush,904 Woodsia, 667 Woodwardia, 667

Woodwardia fern, 667 Woody gallluteovirus,

citrus, 488 Worker Protection Standard,

3 Wormwood, 555 Woundrot

beet, 352 elm,395 maple,403

Wound tumor phytoreovirus, clover, 492

Woundwort, 860 Wyethia, 904

X-disease, peach, 104 Xamthomonas campestris,

98 XanbacD,20 Xanthium, 624 Xanthomonas

begoniae,97 campestris, 97, 98

pv. asclepiadis, 98 pv. begoniae, 97 pv. carotae, 98 pv. citri, 98 pv. corylina, 98 pv. cucurbitae, 99 pv. cyamopsidis, 98 pv. dieffenbachiae, 99 pv. fragariae, 99 pv. glycines, 99 pv. gummisudans, 99 pv. hederae, 100 pv. hyacinthi, 100 pv. incanae, 100 pv. juglandis, 100 pv. malvacearum, 98 pv. oryzae, 101 pv. papavericola, 101 pv. pelargonii, 99, 101 pv. pruni, 102 pv. raphani, 102 pv. vesicatoria, 102 pv. vignicola, 102 pv. vitians, 102 pv. zinnae, 98 pv. zinniae, 101

carotae,98 corylina, 98 cucurbitae, 99 dieffenbachiae, 99 glycines, 99 gummisudans, 99 hederae, 100 hyacinthi, 100 incanae, 100

juglandis, 100 nigromaculans, 101 oryzae,l01 pavericola, 101 pelargonii, 99 pruni,102 pv. albilineans, 97 vesicatoria, 102 vignicola, 102 vitians, 102

Xanthorhiza, 905 Xanthosma, 904 Xanthosoma, 625 Xanthoxylum Americanum,

817 Xerophyllum, 904 Xiphinema

Americanum, 323 bakeri,324 chambersi, 324 diversicaudatum, 324 index, 324 radicicola, 324

Xylaria hypoxylon, 412 mali,412 polymorpha, 412

Xylariaceae,46 Xylella fastidiosa, 102 Xyloporosis, citrus, 489

Yaltox,21 Yam,904

nematode, 321 Yardlong, 571 Yarrow, 905 Yaupon, 905 Yeast spot

lima bean, 381 soybean, 381

Yellow bud, peach, 502 Yellow Cuprocide, 9 Yellow dwarf

barley, 477 onion, 500 spinach,508

Yellowedge pseudo, strawberry, 509 strawberry, 509, 510

Yellow gum disease, Western

wheat grass, 82 Yellow ironweed, 536 Yellow leaf blister

birch,234 gray birch, 234 poplar, 234

Yellow leaf roll, peach, 105 Yellow mosaic

Index - 1007

bean,479 grape,495 raspberry, 507 rose, 507 soybean, 508 zucchini, 516

Yellow mottle tymovirus, desmodium, 494

Yellow net beet, 481 rubus, 507 sunchus, 508 tobacco, 512, 514 tomato, 514

Yellow pondily, 898 Yellow poplar, 884 Yellow-root, 905 Yellow rot, Dutch hyacinth,

100 Yellow rust, 427 Yellow spot

celery, 485 potato, 505

Yellow stipple, bean, 480 Yellow strike potyvirus,

narcissus, 499 Yellow top, tomato, 514 Yellowvein

citrus, 489 clover, 491 grape,495 sowthistle, 508

Yellow witches' broom rust, 428

Yellowing, palms, 106 Yellowtuft, 542 Yerba buena, 905 Yerba santa, 905 Yew, 905

needle blight, 170 twig blight, 157

Yucca, 906 aecidium yuccae, 433 leaf blight, 146 leaf mold, 294 leaf spot, 256 microspaeropsis

concentrica, 250

Z-78,19 Zamia, 906 Zantedeschia, 594 Zanthoxylum clava-herculis,

702 Zaron, 6 Zauschneria, 906 Zea mays, 628 Zebra plant, 547, 907

croton, 230

1008 • Index

Zebrina, potyvirus, 514 Zephyr-lily, 907 Zephyranthes, 907

stromatinia narcissi, 408

Zigadenus, 907 Ziman-Dithane, 15 Zimmerman' s spiral

nematode, 309 Zinc deficiency, 333, 336 Zinc sulfate, 21 Zineb, 19, 29 Zinnia, 907

blight,119 leaf spot, 98, 101

lesions nematode, 318 petal blight, 125

Ziram,19 Zizania, 900 Zizia, 908 Zizyphus, 723

jujuba, phakopsora zizyphi-vulgaris, 430

Zonate canker, elm, 494 Zonate leaf spot, 260

cowpea, 241 wild rice, 143

Zonate ring spot, c1erodendron, 489

Zoysia, 908

criconema spinalineatum, 306

hoplolaimus galeatus, 313 Zucchini

wilt, 86 yellow mosaic potyvirus,

516 Zygocactus

Montana X potexvirus, 516

truncatus, 616 Zygomycete, 38, 40 Zygomycota,40 Zygophiala jamaicensis, 177,

227