Black rot concord grapes

Asked July 30, 2018, 8:22 AM EDT

I think my Concord grapes have black rot. Does not appear to be a large amount now. Have only 4 plants about 10 years old. About 50 ft. of vines loaded. What can I do about it? From what I can find out I think it's too late for fungicide. If so, what should I do? Thank you.

Midland County Michigan

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