Detailed profiles of common plant diseases, pests, nutrient deficiencies and environmental problems.
Golovinomyces orontii is a living-tissue-dependent powdery mildew fungus associated with cucurbits and several other broadleaf hosts. It produces conspicuous white patches on leaves and…
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Golovinomyces cichoracearum is an obligate powdery mildew fungus associated with cucurbits and several other documented hosts. It produces white, flour-like colonies on living foliage…
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Chestnut brown rot is a fungal disease caused by Gnomoniopsis smithogilvyi. It primarily damages chestnut kernels, often without obvious external symptoms at harvest. Brown…
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Golden nematode, Globodera rostochiensis, is a soil-dwelling quarantine pest of potato and other susceptible solanaceous plants. Feeding on roots can produce stunting, yellowing, wilting…
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Globodera pallida is a regulated, soil-borne nematode pest of potato and other solanaceous hosts. It attacks roots, causing patchy poor growth, chlorosis, wilting during…
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Take-all root rot is a soilborne disease of grasses and cereal crops caused by members of the Gaeumannomyces graminis group. In the United States,…
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Fusarium solani is now understood mainly as a species complex containing several closely related soilborne fungi. Depending on the host and pathogen lineage, it…
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Fusarium wilt is a soilborne vascular disease caused by host-specific pathogenic strains within the Fusarium oxysporum species complex. Infected plants commonly show one-sided or…
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Fusarium graminearum is a major cereal disease fungus in the United States, best known for Fusarium head blight, or scab, of wheat and barley.…
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Fusarium culmorum is a soil- and residue-associated fungal pathogen that most consistently affects wheat and other small grains. It can cause crown, foot, root…
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A Frankliniella occidentalis, vagyis a nyugati virágtripsz apró, sok tápnövényen előforduló szívó-rágó kártevő. Főként virágokban, zsenge levelekben és hajtáscsúcsokban táplálkozik, ahol ezüstös hegesedést, barnuló…
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Northern corn leaf blight is a fungal leaf disease caused by Exserohilum turcicum, most important on susceptible field, sweet and popcorn hybrids. It produces…
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