One of the easiest ways to discourage wasps from hanging around your porch, patio or picnic site is by using this simple mock wasp nest. Because wasps are territorial, they recognize the nest as a hazard to avoid.
Made from durable polypropylene, it has an integral hanging loop and measures 12" high. You can fill it with plastic bags to help maintain its shape. In our tests, we found it deterred wasps, including yellowjackets, up to 20' away. You may need two or more to cover large areas. A great alternative to conventional traps.