Anyone noticed large, somewhat darker colored yellow jackets around your homes? If so, these are queens looking for places to nest. There are several home made traps one can make. One I use is a simple tripod with a piece of string and a piece of fish hanging about one inch above a dish of soapy water. The queen will take a piece of the fish then dip as she flies away, usually hitting the water where she will struggle and drown. I caught my first one today. An easy solution to a big problem in summer.