A lot of my grapes are starting to get that look to them as well up here by Minneapolis. 30 planted last year and 103 this year, northern grapes. I was kind of thinking (maybe hoping) this is what they look like as autumn starts creaping in. Curious to hear the answer.
I hope too it's fall setting in...this is 1st year for them and I have no spray program for them yet...doing some digging in forums and have come up with one for next year.....these spots started showing up in september....thanks for your input!