Disease
Fava Bean Chocolate Spot
Botrytis fabaeFava bean chocolate spot is a fungal disease associated with Botrytis fabae, especially during cool, wet and humid weather. It starts as small red-brown…
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Plant problem library
Detailed profiles of common plant diseases, pests, nutrient deficiencies and environmental problems.
Disease
Botryosphaeria canker and dieback
Botryosphaeria dothidea (Moug. ex Fr.) Ces. & De Not.Botryosphaeria dothidea is a wound- and stress-associated fungus that causes cankers, shoot or branch dieback, blights and fruit rots on many woody plants. In…
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Disease
Cherry leaf spot
Blumeriella jaapii (Rehm) ArxCherry leaf spot is a fungal disease caused by Blumeriella jaapii, especially damaging to tart and sour cherries in humid growing regions of the…
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Disease
Cereal Powdery Mildew
Blumeria graminisCereal powdery mildew is a fungal disease complex caused by host-specialized forms of Blumeria graminis. It produces distinctive white to gray, flour-like colonies on…
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Disease
Bipolaris Leaf Spot, Spot Blotch and Common Root Rot
Bipolaris sorokinianaBipolaris 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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Disease
Black Root Rot
Berkeleyomyces basicolaBlack 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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Disease
Rhizomania of Sugar Beet
Beet necrotic yellow vein virus (BNYVV)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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Disease
Beet mosaic
Potyvirus betaceumBeet 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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Disease
Bean yellow mosaic
Bean yellow mosaic virusBean 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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Disease
Bean common mosaic
Bean common mosaic virus (BCMV; Potyvirus phaseovulgaris)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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Disease
Southern blight
Athelia rolfsiiSouthern 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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Disease
Black mold
Aspergillus nigerBlack 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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