Reference · Diseases

Powdery mildew

9 657 items — choose below or search on the left.

9 657 items

Results

Omphalotus Omphalotus Omphalotus illudens Omphalotus illudens Omphalotus japonicus Omphalotus japonicus Ghost fungus Omphalotus nidiformis Jack-o'-lantern mushroom Omphalotus olearius Oncobasidium Oncobasidium Onion yellow dwarf Onion yellow Onnia Onnia Onnia subtriquetra Onnia subtriquetra Woolly velvet polypore Onnia tomentosa Onygena Onygena Onygena corvina Onygena corvina Horse hoof fungus Onygena equina Onygenaceae fungi Onygenaceae Oomycetes Oomycetes Oomycetes Oomycota Oospora Oospora Rice oosporosis Oospora oryzetorum Opalina Opalina Opalina ranarum Opalina ranarum Opalinea Opalinea Opalinidae Opalinidae Opegrapha Opegrapha Opegraphaceae Opegraphaceae Ophiobolus stem blight Ophiobolus acuminatus Ophiocordyceps Ophiocordyceps Ophiocordyceps clavulata Ophiocordyceps clavulata Ophiocordyceps dipterigena Ophiocordyceps dipterigena Ophiocordyceps entomorrhiza Ophiocordyceps entomorrhiza Ophiocordyceps forquignonii Ophiocordyceps forquignonii Ophiocordyceps hirsutellae Ophiocordyceps hirsutellae Ophiocordyceps pruinosa Ophiocordyceps pruinosa Ophiocordyceps robertsii Ophiocordyceps robertsii Chinese cordyceps Ophiocordyceps sinensis Ophiocordyceps truncata Ophiocordyceps truncata Ophiocordycipitaceae fungi Ophiocordycipitaceae Ophiocytium Ophiocytium Ophiocytium majus Ophiocytium majus Ophiodothella leaf spot Ophiodothella Ophiodothella neurophila Ophiodothella neurophila Ophiodothella panamensis Ophiodothella panamensis Blueberry leaf spot Ophiodothella vaccinii Ophiognomonia Ophiognomonia Butternut canker Ophiognomonia clavigignenti-juglandacearum Walnut anthracnose Ophiognomonia leptostyla Ophioparma Ophioparma Ophioparma ventosa Ophioparma ventosa Ophioparmaceae Ophioparmaceae Ophiosphaerella patch Ophiosphaerella Ophiosphaerella agrostidis turf disease Ophiosphaerella agrostidis Ophiosphaerella root rot Ophiosphaerella herpotricha Necrotic ring spot Ophiosphaerella korrae Ophiosphaerella narmari spring dead spot Ophiosphaerella narmari Dutch elm disease Ophiostoma Ophiostoma bicolor Ophiostoma bicolor Ophiostoma blue stain Ophiostoma brunneociliatum Walnut ophiostomatosis Ophiostoma juglandis Ophiostoma megalobrunneum Ophiostoma megalobrunneum Blue stain Ophiostoma minus Dutch elm disease Ophiostoma novo-ulmi

Plant disease reference

Catalogue of crop diseases: fungal, bacterial, viral diseases and nematodes. For each disease — the pathogen, typical symptoms, affected crops, effective control and prevention measures.

Diseases are linked to the catalogue: a disease page lists resistant varieties, and a variety's specs show its resistance to specific diseases. Use the filter on the left to select diseases by pathogen type or affected crop.