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Month: Dec
Year: 2010
State: OR
County: Marion
Grower: Greenhouse
Host Category: woody ornamentals
Host Common Name: rose
Host Scientific Name: Rosa sp.
Symptoms: stem discoloration
Parts affected: stem
Primary Pathogen Category: fungus
Diagnosis Common Name: downy mildew
Diagnosis Scientific Name: Peronospora sparsa
Popular Search Terms: downy mildew