Grapvine diseases

[texrose]

We have a grapvine ( white table) and all of a sudden the some of the little grapes are turning purple-black and rotting, it is spreading to the other grapes.
Any idea what it is and how to stop it?

Also is there a natural way to keep the birds and squirrel's from eating the grapes?

[Robin Barnhart]

I see this is an older post so I don't know if you received any replies. I am having the same problem and would love some help. I also haven't figured out how to cut away the old growth, last years without cutting away the new (this years so next years grapes will grow on it). I've read a couple of books but I'm not understanding it.

Thanks, Robin

[texrose]

Grapes will only grow on new growth, it will dies back some in the winter, in january cut away all the old canes and you will have new grape bearing vines comeout.