This story appeared on television recently (see link below). Right about this time of year in our area we are inundated with paper wasp and yellow jacket activity. If you have a nest (or nests) on your property that you want to be rid of, call a professional. Attempting to destroy nests with water hoses or trying to knock them down can be dangerous.
Pictured: A Whitworth Pest Solutions certified technician removing a dangerous “bald-faced hornet” nest.