I didn't believe this until I tried it, but an old farmer told me to put some dishwashing liquid in water and throw it on them. He said they drop dead on the ground instantly. At first I thought he was pulling my leg to watch me get swarmed, but he said it straight as could be. Since I had a big wad of wasp nest near a water spigot and no spray handy, I tried it. Darn things dropped faster than all my years of shooting them with expensive wasp and hornet spray. Now I throw some Dawn and water in a sprayer and nuke 'em anytime I want.
Not to beat the function of the decoy nests, but I thought it was a great trick and I still don't know how it works so well.
I use Bifen mixed in water and spray it under soffits, in door jambs, along ceiling corners in the barn and shed. That proactively controls 95% of my pest wasps, with a single spray. It has no scent, is water based, and doesn't stain. It lasts for at least a month, but some years a single spray is enough. I buy it from the domyownpestcontrol website. Permethrin works too, and it kills them faster, but only lasts a week or two.
I didn't believe this until I tried it, but an old farmer told me to put some dishwashing liquid in water and throw it on them. He said they drop dead on the ground instantly. At first I thought he was pulling my leg to watch me get swarmed, but he said it straight as could be. Since I had a big wad of wasp nest near a water spigot and no spray handy, I tried it. Darn things dropped faster than all my years of shooting them with expensive wasp and hornet spray. Now I throw some Dawn and water in a sprayer and nuke 'em anytime I want.
Not to beat the function of the decoy nests, but I thought it was a great trick and I still don't know how it works so well.
I have read that the "brown paper bag" trick works. I meant to use it to deter carpenter bees this spring, but it slipped my mind.
How To Get Rid Of Wasps Using A Brown Paper Bag. I'm So Happy I Learned THIS
Steve