Detailed profiles of common plant diseases, pests, nutrient deficiencies and environmental problems.
Bipolaris sorokiniana is a seed- and residue-associated fungal pathogen of grasses that causes spot blotch and common root rot in wheat and barley, black…
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Black root rot is a persistent soilborne disease caused by the fungus Berkeleyomyces basicola, formerly known as Thielaviopsis basicola. It attacks roots and sometimes…
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Sweetpotato whitefly, Bemisia tabaci, is a small sap-feeding pest complex that attacks vegetables, field crops, ornamentals and weeds throughout warm regions of the United…
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Rhizomania is a serious soilborne viral disease caused by beet necrotic yellow vein virus (BNYVV), especially damaging to sugar beet. Infected plants may remain…
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Beet mosaic is a viral disease caused by Beet mosaic virus, now classified as Potyvirus betaceum. It mainly affects sugar beet, garden beet and…
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Bean yellow mosaic is a viral disease caused by Bean yellow mosaic virus (BYMV), most often recognized by sharply contrasting yellow and green mottling…
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Bean common mosaic is a virus disease of beans that produces light- and dark-green mosaic patterns, leaf puckering, curling, distortion and plant stunting. It…
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The potato/tomato psyllid, Bactericera cockerelli, is a tiny, mobile sap-feeding insect that attacks potatoes, tomatoes, peppers, eggplants and related plants in the United States.…
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The silver Y moth, Autographa gamma, is a migratory, highly polyphagous noctuid whose caterpillars chew vegetable, field-crop and ornamental foliage. Heavy infestations can skeletonize…
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Southern blight, caused by the soilborne fungus Athelia rolfsii, can rapidly kill tomatoes, peppers, beans, peanuts, onions, ornamentals and many other plants during hot,…
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Black mold caused by Aspergillus niger is primarily a wound- and stress-associated disease of stored bulbs, fruits, grains, and some field crops. It produces…
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Aspergillus flavus is a soil- and residue-associated fungus that can colonize developing corn kernels, peanuts, cottonseed and tree nuts, particularly when crops experience heat,…
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