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treatment for powdery mildew

grapes

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United Kingdom

how do I treat powdery mildew on black hamburg grapes


On plant botrytis cinerea

  • Question asked on 6 Aug, 2008

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Answers

Owdboggy
Owdboggy
 

If you are sure it is mildew and not botrytis then it is a very serious problem. A suitable systemic fungicide is needed.

6 Aug, 2008

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