Disease on 'America'

[SundownVineyard]

What disease I'm lookin at here? Southwestern CT (zone 6a). Trying to learn my grape diseases. Thanks.

 

[BitterrootGirl]

If no one hear answers, you might check with your local extension office.

 

[SundownVineyard]

If no one hear answers, you might check with your local extension office.

I haven't even tried looking it up, to be honest. Thought it might be something I can get a quick answer to, but apparently not. Thanks.

 

[KevinL]

They look like black rot spots, but they're too close to the edges. Black rot typically has those spots, but randomly on the leaf. I'd bet a fungus of some kind is your culprit. Good luck!

 

[SundownVineyard]

Thanks. It's very minor, and I have a good program in place (as long as I find the time to spray).