Tuesday, July 9, 2013

Disease risks from July 7-8th

We had about 18-19 hours of wetness event in lower 70F in July 7-8th.  It was infection risk event for black rot, downy mildew, Botrytis, and Phomopsis.  At this point, most of your berries are out of critical period for downy mildew, powdery mildew and black rot infection.  Rain today looks like bring another infection events...

Also, please keep in your mind about the 66-day PHI of mancozeb products.  Many of early varieties are at or near the limit at this point

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