Help...my grapes are dying right on the vine. Last year we had a bumper crop...
Help...my grapes are dying right on the vine. Last year we had a bumper crop from my very old grape arbor. This year the leaves don't look healthy and the grapes are shriveling up.
Albany County New York grapes
Sorry it's taken a little while for us to get back to you about your question. From the picture of the fruit that you sent, it looks like you might be dealing with one of two possible diseases - black rot or downy mildew. If you could send a picture or two of any discoloration on the leaves (yellowing, dying around the edges, etc.) that could help give a more definitive answer. Also, let us know what variety of grape it is as well, if you know it.
The leaves in your picture don't have any symptoms of black rot (the chewing on them is likely from Japanese beetles, but it's not enough to worry about at all), but I still think that's what's happening with your fruit.
My two suggestions would be: 1) This winter, be sure to remove all of the stems from the vines. If they are left in place, the fruit that is attached to them will be a source of disease spores next year. Don't just drop them on the ground - dispose of them somewhere else. 2) Talk to your local extension office's Master Gardeners (most counties in NY have them) about where you could get a fungicide that works on fruit diseases (local garden centers are a usually a decent place to start too). That should help next year too.
Best of luck!