I try to avoid chemicals when possible,so I throw soapy water on em all and thats the DEAD end for em.It really works great.That is,when Im out of dynamite.
I heard soapy water works quite well, never tried it. But thought at least an M80 with a long fuse would do the trick. Never tried that either. Another method for ground bees is to just bury them if you have an FEL. They can't dig out. Shotgun approach might work with hives in a tree or something like that, never tried that either, could work if you were a good shot at the right distance.
FYI. The MEK approach was something I was told, never tried it, but I can understand how it works.
