Carpenter bees can bee someone's nightmare when they invest in property, like myself, in the middle of somewhere USA. As some of you know, I have purchased a cabin in Kentucky that I do rent out from the company that leases the cabin from me. In the process of getting it back up to live able standards, the carpenter bees are trying to turn this into Swiss cheese. After doing a shit load of research, I found a product called "drione" powder. This powder is shot into the holes of the carpenter bees & you see instant results (within 5 minutes).