[Sequoyah101]

PS, it does work in most areas depending on how much area you are trying to protect. I have one hung in a camper shell that is suspended from the barn ceiling and there is not a single dirt dobber or wasp nest in it. I convinced someone to put them up in the rafters of his airplane hanger, no wasps anywhere.

[Pete from Shawnee Mission]

Decoy wasp nests. Some people say it does not work, but others say it does. I would be willing to try it.

https://askentomologists.com/2020/07/14/do-wasp-nest-decoys-work/

https://www.amazon.com/AIRCROW-Wasp-Fake-Hornets-Deterrent/dp/B01KLMDXKK

Painting your porch ceiling blue is supposed to deter them from nesting on it.