For me, yellowjackets are the most fierce. You never know when or where you will stir up a nest. They get nasty in a hurry, and stay that way. I ran over a nest last year when mowing with a rider, and at the same time, got stuck on a buried wooden beam from an old raised bed. Several hours alter, they were still attacking the mower. Sprayed all sorts of stuff on the mower. Next day, there were hundreds dead on the seat. The rest were still buzzing around.

Bumble bees are much more docile, but more deadly.

Last edited by burgermeister; 03/04/10 08:09 PM.