Grapes Drying on the Vine

Asked July 9, 2019, 4:39 PM EDT

I have some Frontenac grape vines on an arbor in my garden, and some of the grapes look good, while others are turning brown and drying up. Do you know what may be causing this problem? I attached photos of the grapes and also leaves. Thanks!

Hennepin County Minnesota

2 Responses

It could also be black rot, and it is a fungal disease.