The best solution is this petroleum based substance. I`ll show you how to make your own which is the most effective way to eliminate carpenter bees with no unsightly traps hanging around. It`s put into a 60cc syringe and a small amount is injected into each hole making the hole a bee trap. The ingredients are basically harmless to humans.  It can be made by you and used by you but the EPA will not allow you to sell it .

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