Monday, June 3, 2013

Disease risks from yesterday's rain event

Winchester area received a series of thunderstorms from 3:00 PM yesterday, and relative humidity remained high (>90%) until 9:00 AM this morning.  Thus we had a wetness event of 18 hours with an average temperature of 66-67F.  It was warm and long enough for Phomopsis, black rot, downy mildew, and Botrytis infection.

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