My seedless white grape has black blotches on 50% of the berries . My purple...

Asked September 7, 2016, 5:33 PM EDT

My seedless white grape has black blotches on 50% of the berries . My purple grapes are fine. What's up?

St. Clair County Michigan

1 Response

My guess is that the white grape has anthracnose and the purple grape is less susceptible.http://www.ipm.msu.edu/grape_diseases/anthracnose