jaroti
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Joined: Wed Mar 08, 2017 10:53 pm

black spot on grape leaves

what is happening to these grape leaves?, can I still treat them?
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!potatoes!
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Posts: 1938
Joined: Tue Apr 14, 2009 2:13 pm
Location: wnc - zones 6/7 line

probably some kind of mildew/fungal issue (grapes get them a lot)...but it doesn't look bad at all. not sure about treatment, but there probably is something you can do.

JONA
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Posts: 812
Joined: Fri Jul 25, 2014 7:11 am
Location: Sussex. England

Probably the safest so near to harvest would be sodium bicarbonate...baking powder.... it's quite effective as a fungicide.



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