Grapes have white on them - Ask Extension
Hi, trying to figure out what is going on with our grapes. They were looking so good but now are getting white on them. We just have a couple of plant...
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Grapes have white on them #875336
Asked June 30, 2024, 12:08 PM EDT
Hi, trying to figure out what is going on with our grapes. They were looking so good but now are getting white on them. We just have a couple of plants. They are either Valiant or Marquette variety of grapes.
Stearns County Minnesota
Expert Response
The grapes appear to be affected by powdery mildew. Compare here:
https://www.canr.msu.edu/ipm/diseases/powdery_mildew
This reply to a similar question discusses the problem and what to do about it.
https://ask2.extension.org/kb/faq.php?id=873577
https://www.canr.msu.edu/ipm/diseases/powdery_mildew
This reply to a similar question discusses the problem and what to do about it.
https://ask2.extension.org/kb/faq.php?id=873577