If the above doesn't work, call a bee keeper. I had a BIG hive under my shed last year that cost me 1/4 of the floor. I got swarmed a couple of times, but no stingers. I'm one of the most unlucky people in the world too. If they do have stingers they probably won't use them.
__________________ "Aw! Why does everything that only happens to stupid people happens to me?" - Homer J. Simpson
I don't think this is an "approved" method, but it's just what I have done.
the aerosol carburetor cleaner that you buy at car parts stores works amazingly well on ANY insect. It kills nearly instantly. Must be some sort of chemical that attacks their nervous system. It will drop a bumble bee or carpenter bee right out of the air. The small spray tubes work well for spraying inside holes that they have bored. When you see one go in a hole, just spray some inside and within a few seconds, they normall fall out to the ground and die.