I've found if you have wasps nesting somewhere that there is an entrance or a sheltered place for them to build their nest, it's best to cover or fill the entra

I've found if you have wasps nesting somewhere that there is an entrance or a sheltered place for them to build their nest, it's best to cover or fill the entrance if possible. Caulking or Great Stuff foam is a great choice here. Any cracks or holes they use to get behind siding or the like, for example. We had persistent nest problems in an underhang of our Little Free Library, which is a terrible place for a wasp nest, and I filled that gap with great stuff. We have paper wasps predominantly around here, and they will tend to nest in secluded areas, often voids or overhangs. I built my shed specifically to limit the ability for wasps to have a great place to make home.