Disease risks from yesterday’s rain

Winchester area received rain around midnight on June 21st then although there were not much of precipitations, there were a few showers passed the region, and the relative humidity was high (>90%) until around 9AM.  It was 9 hours of an estimated wetness event with an average temperature of 68F.  Then there was another rain event started 11:15PM until 8:15AM on 22nd (today).  It was 9 hours of an estimated wetness with an average temperature of 73F.  Both events were infection risk events for Phomopsis, black rot, Botrytis, and downy mildew.  In addition, we are having about a week of consecutive high humidity warm nights that promote downy mildew spore production.

FYI: I’m still at the conference, if you would like to contact me, email is the best way.

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