Yellow Jackets (which are paper wasps, not bees) create by far the greatest number of service calls for bees and wasps in Waukesha county. Paper wasps build hives that can be either exposed, within a void or both.

If you see bees or wasps going in or out of a hole, you should never attempt to plug it as this will cause the bees/wasps to go into a frenzy looking for another way out. Often paper wasps will nest above a ceiling and cause a staining that looks like a water spot. In this case you should never touch the ceiling tile, because the only thing separating you from the nest is paper.

Colonies can have anywhere from a dozen to several thousand individuals and without proper protection you will get stung.