I have a robust (table) grape plant, but something is picking off the immature grapes as they first bud. I had ants walking on the plant up to a few weeks ago before the buds emerged. I killed them off with ant baits located on the plant and on the ground. The only pest I've seen now is a couple of bound-up leaves with caterpillars inside. I've been able to kill all of them - there were probably only ten so far. Occasionally, I see some wasps flying around. Any help is appreciated.
Ed