On 8/6 a wetness event (~10 h in lower 70F) was recorded at Winchester, and there was another event today (~16 h in lower 70F)… Both are risk event for Botytis and downy mildew.
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Risk events
Disease risks from 8/6 and 8/7
Grape Disease Management Tips from Mizuho Nita (Grape Pathologist at Virginia Tech)