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Month: Sep
Year: 2010
State: OR
County: Umatilla
Grower: Farm
Host Category: small fruits
Host Common Name: grape
Host Scientific Name: Vitis vinifera
Symptoms: fruit discoloration
Parts affected: fruit
Primary Pathogen Category: fungus
Diagnosis Common Name: grape powdery mildew
Diagnosis Scientific Name: Erysiphe necator
Popular Search Terms: powdery mildew