This was previously posted and we came up with a good solution.
I was wondering if anyone had an idea of how to take care of this problem?
We have 15 grape vines with a lot of grape clusters on them. And, we also have a lot of wasps and yellow jackets that eat them every year just as they are ripening, because they are next to our orchard(we don't have this problem with the grapes in the greenhouses). We have lava rock walls half-way around them to protect them from the wind during the winter.
So, we are trying to come up with a way to protect the clusters from the wasps.
We thought of covering the whole plant with fabric like window screen to keep the wasps out. But the lava rock walls have spaces between them and any wasps can get through.
If we covered the whole plant and rock wall with a 4x4x3 foot frame covered with screen fabric, that would work but consists of a lot of labor to make them, but we would re-use them every year.
The best idea and maybe the least amount of effort we can come up with is to loosely wrap each cluster (there are a lot of them) with window screen type of fabric to keep the wasps away from the grape clusters.
If birds were the only problem we could just cover each row with netting, like we do our raspberries. But, wasps can get through the netting. If we can get a large roll of window screen type of fabric netting and cover whole rows (we haven't looked for it yet) that would probably be the better.
Maybe some of you can see a solution which we don't see yet. Thanks, Lee Garrett.
*We were given a solution to use yellow jacket traps. We thought this would work because we use them in our fruit trees, but didn't want to have to buy so many more.
Our solution was to make net fabric socks/bag to go over the individual clusters. It works really well and is cheap and easy to make. We weren't sure if this was too much work for the return, but turned out to be a good idea. We just make ten or so a day on the sewing machine ( one minute apiece tops) and add a tie with a needle and thread. And we can reuse them every year.
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