user 36973
owner, winemaker
- Joined
- Jun 13, 2017
- Messages
- 706
- Reaction score
- 534
I'm wondering if someone out there with an experienced eye can help identify what the disease is causing the lesions on these vine shoots. This is a "Sheridan" grapevine (labrusca) that seems to be sensitive to a wide variety of diseases throughout the season. The photo is from early Sept. Apologies for it being out of focus (thanks, phone auto-focus). I've subsequently noticed some downy mildew affecting the leaves. Earlier in the season, I had successfully controlled anthracnose, blackrot, and downy that typically like to attack these vines. I'm figuring this issue stemmed from a mistimed late-summer spray.