You need look for there nest they make spray can shoot 27 foot best done night all be at home on nest I buy 2 cans a year to keep population down. Do good scouting job today and tonight be ready if live close to other people they may have nest show them nest ask you destroy late evening. nest be under something out rain I got one in old mail box out back this year. Wasp feeding on old pears now on ground.

Hi Gator rider2,
I thank you for your suggestion. So far, I have not seen many of the wasps at all. I will look for their nest though. Do you ever use netting on your trellis or arbor? I guess I could apply both techniques, the spray and the netting. Thanks again gator rider 2!

Your muscadine fruit out number wasp next year on. No never net any plants I pick from under vines at that time if wasp pressure heavy I go looking watching they will make nest at trellis post if dry once get more fruit they stay on ones on ground feeding cracking and over ripe fruit deer eat off vines in day time and few feet away they feel safe under canopy.

Okay Gator Rider 2,
You have given me good advice. I will go looking because I am determined to outwit those wasps and the like. I am going to do what I have to do next year. What is the name of the spray that you use?

Wasp and Hornet killer I think they all kill brand makes no difference.

Why not make a wasp trap out of a 2 liter bottle? You can do a google image search and see what I mean. Bait it with sugary soda or the like.

Planting more vines will not necessarily quadruple your wasp population in future years, but will give you better odds of being able to enjoy your grapes. The netting will also help when possums and raccoons start hanging out there at night during harvest season.

Make or buy some traps, they work. I was getting major wasp damage until I got traps.

Scott

Thanks All for the great suggestions!
I will make a wasp trap with the 2-liter bottle of sugary solution, and buytraps as well. I take you all at your word, I am going to use every suggestion until I get some kind of control over this situation! It is enough to do all the work in maintaining the vines, the waiting, the anticipating only to have the wasps attack the fruit. No Sir! And I will also go back to my original idea and get netting with the tiniest holes if nothing else works. Thanks so much everyone, I love this website. Next season, I will let you know how it turned out and what I did...