Hi. We have these "wild" grapes growing all over the place. For whatever reason, they produce lots of clusters of pea-sized (or a bit larger) grapes; not as big as you see in supermarkets, but the ones around here produce respectable clusters of grapes. They seem well-adapted to this climate and you often have to compete with the birds to get your fair share. Probably by September or October, the grapes turn dark purple and are quite edible. They have a very grape-y flavor that is simultaneously tart, yet there is sweet in there too. They are not as sweet as the grapes you get in the supermarket which, to me, are pleasant and sweet but don't have much flavor. I'm the only one in my family who likes them, but the neighbor lady makes a tasty grape jelly from them that everyone loves. They have a lovely tang that I find exceptional, and it heightens the strong grape-yness of the flavor. But taste is highly individual and varies greatly from person to person. If there are some low hanging branches from trees or bushes nearby, drape the vines over the branches. You would probably need a fairly heavy trellis to support them, so use the surrounding sturdy trees and bushes for support, if possible. The ones that grow near my compost pile are pretty good, but we find them growing all over, neglected, and they seem to do just fine. Treating them better might increase the yield and/or size of the fruit.

There is no typical skeletonizing in your images. The common Grape Leaf Skeletonizer is not associated with webbing, so your caterpillars may be Leaf Tiers or Leaf Rollers, too small yet to deform the leaves. In any of the above, Bt would be effective. The adult moth that layed the eggs may well be done for the season, so picking off the leaves might be the end of it.

I recently identified the tiny grapes I've been enjoying as "champagne" grapes, otherwise known as the black corinthian or Zante Currant variety of grapes. If anyone has a vine, I would like to trade. I have cuttings of "Anastasia" Kiwi berries of both male and female(though the females are pretty good at self fruiting alone) as well as Flame Seedless grape. I also have a semi large collection of heirloom vegetable seeds (~100 variants) and some specialty plant seeds such as the Szechuan buzz button, groundcherry, and mouse melon so feel free to ask and I'll send you a list to see if anything catches your interest. Have a good day!

I recently identified the tiny grapes I've been enjoying as "champagne" grapes, otherwise known as the black corinthian or Zante Currant variety of grapes. If anyone has a vine, I would like to trade for some cuttings. If you have an large grape variety that is sweet and good table fare, I also might be interested. I have cuttings of "Anastasia" Kiwi berries of both male and female(though the females are pretty good at self fruiting alone) as well as Flame Seedless grape. I also have a semi large collection of heirloom vegetable seeds (~100 variants) and some specialty plant seeds such as the Szechuan buzz button, groundcherry, and mouse melon so feel free to ask and I'll send you a list to see if anything catches your interest. Have a good day!