Said it before and I'll said it again RAID !!!!!
@Itsme :
Raid WASP/Hornet killer does the trick....In fact, I always keep at least 2 cans of that stuff on-hand at all times during the summer....Works great...Had many a nest I hit with it and the bees just "froze" in place stuck to the nest...That's what I call fast acting!....
