My grapes are malformed. Any thoughts?

[oldmobie]

My grape vine seems as healthy as can be, but the fruits have something wrong. They get dark, usually black discoloration where they touch one another. Some of the fruits are shrivelling before ripening. This is the second or third year of this behavior, so not a fluke. I don't think I've had a grape ripen since this started. I sure would love to know why this is happening.

[steev]

Damn, that's a pain; wish I could help.

[reed]

Looks like one or more of the approximately 5000 different fungal diseases that grapes get now days. I haven't got enough Concord to make a jar of jelly in years. There are sprays you can use, I think copper sulfate is one but I did research and found some new varieties that resist the fungi and to my surprise they really do. They are mostly wine varieties but are very good, just smaller than I'm used too. I'm gonna take out my Concord vines except for maybe one just for nostalgia as it is the variety I love and remember from years ago.