Plant Disease Lessons

Anthracnose of turfgrass
Anthracnose of turfgrass (Antracnosis del césped - Español)
Aphanomyces root rot or common root rot of legumes
Apple powdery mildew
Apple scab
Armillaria root disease, shoestring root rot
Bacterial fruit blotch of cucurbits
Bacterial fruit blotch of cucurbits (Mancha aquosa das cucurbitáceas - Português)
Bacterial leaf scorch (BLS) of shade trees
Bacterial spot of pepper and tomato
Bacterial spot of pepper and tomato (Mancha bacteriana de pimentão e tomate - Português)
Barley yellow dwarf
Black knot
Black shank of tobacco
Black sigatoka
Black sigatoka (Sigatoka negra - Español)
Black sigatoka (Sigatoka negra - Português)
Blackleg of oilseed rape
Blackleg of potato
Blackleg of potato (Canela Preta da cultura da batata - Português)
Brown root rot
Brown rot of stone fruits
Burrowing nematode disease
Citrus canker
Citrus Canker (Cancro cítrico - Português)
Coffee rust
Coffee rust (Roya del café – Español)
Common smut of corn
Common Smut of Corn (Carvão comum do milho (Bolha do milho) (Morrão do milho, pt) - Português)
Crown gall
Cucumber mosaic virus
Daylily rust
Dollar spot of turfgrass
Dollar Spot of Turfgrass (Mancha Dólar del Césped - Español)
Downy mildew of cucurbits
Downy mildew of grape
Dutch elm disease
Dwarf mistletoes
Early blight of Potato and Tomato
Early blight of potato and tomato (Early lehemädanik {Alternaria} kartulite ja tomatite - Estonian)
Early blight of potato and tomato (Pinta-preta {Alternariose} da batata e tomate - Português)
Ergot of rye
Ergot of rye (Cornezuelo del centeno - Español)
Ergot of Rye (Esporão do Centeio - Português)
Fire blight of apple and pear
Frogeye Leaf Spot of Soybean
Fusarium head blight
Fusarium head blight (Giberela ou fusariose da espiga do trigo - Português)
Fusarium wilt of watermelon and other cucurbits
Late blight of potato and tomato
Late blight of potato and tomato (Chinese Translation)
Late blight of potato and tomato (Requeima (míldio, pt) da batateira e tomateiro - Português)
Lesion nematode disease
Lesion Nematode Disease (Nematoides das lesões radiculares- Português)
Lethal yellowing of palm
Leucostoma canker of stone fruits
Mofo branco (podridão branca, pt) (Sclerotinia)
Monosporascus root rot (Podridão radicular de Monosporascus e declínio dos ramos do meloeiro - Português)
Monosporascus root rot and vine decline of melons
Mummy Berry
Papaya lethal yellowing virus
Papaya lethal yellowing virus (Amarelo Letal do Mamoeiro - Português)
Papaya Ringspot virus
Papaya ringspot virus (Mancha Anelar {Anéis Necróticos, pt} - Português)
Pecan Scab
Petal Blight of Camellia
Phomopsis Stem Canker of Sunflower
Phytophthora blight of cucurbits
Phytophthora root and stem rot of soybean
Pine wilt disease
Potato spindle tuber
Pythium blight of turfgrass
Pythium blight of turfgrass (Quemazón del césped por Pythium - Español)
Rapid Blight of Turfgrass
Rhizoctonia diseases of turfgrass
Rice blast
Rice blast (Brusone {Piriculariose, pt} do arroz- Português)
Rice Sheath Blight
Root-knot nematode
Root-knot nematode - (Nematoide das galhas - Português)
Septoria nodorum blotch of wheat
Septoria tritici blotch (STB) of wheat
Septoria tritici blotch (STB) of wheat (Mancha salpicada da folha {Septoriose, pt} do trigo - Português)
Soil-borne wheat mosaic
Southern blight, southern stem blight, white mold
Soybean cyst nematode disease
Soybean rust
Soybean rust (Ferrugem da soja - Português)
Stem rust of wheat
Stem rust of wheat (Ferrugem do colmo do trigo (Ferrugem Negra do Trigo, pt) (Português)
Stewart's wilt of corn
Sting nematode
Stinking smut of wheat
Sudden death syndrome of soybean
Sudden death syndrome of soybean (Síndrome de la muerte súbita {SMS} de la soja - Español)
Sudden oak death, sudden larch death, and ramorum blight
Take-all root rot
Tan spot of cereals
Taro leaf blight
The Life Cycle of Wheat Stem Rust (Video)
Tobacco mosaic virus
Tobacco mosaic virus (Virus del mosaico del tabaco)
Tomato spotted wilt
Verticillium wilt
White mold (Sclerotinia)
White mold (Sclerotinia) (Mofo Branco - Portuguese)
White pine blister rust