Friday, July 12, 2013

Disease risks 7/9-11

Boy, it's really hard to keep up with rains this year!

We had about 10 hours of wetness on both 9th and 10th, and about 9 hours on the 11th (yesterday).  Average temperature were in upper 60F to lower 70F.  These were events for downy mildew, black rot, and Botrytis.  However, as I noted in the previous post, berries should be out from the critical period of infection by downy, black rot, and powdery mildew.  However, with these frequent rains, risk of Botrytis is probably high overall, especially for tight cluster varieties.

1 comment:

  1. No kidding on the rain comment....dropped 4.6 inches Thursday night in Page County.

    ReplyDelete

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