Forget the other tips about building a bird house-like trap with a soda bottle on the bottom, to entrap and kill carpenter bees. I built one, and mounted it right next to the existing bee hole. They buzzed around it and checked it out, but not a single bee ever entered it. A waste of time.
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I read about those traps and bought one, then made 3 more with Pint canning jars. Over two seasons, they caught ONE bee....works better for wasps than bees. Been reading about the WD40 as the little nastys play games on my porch (I don't even want to think about the eaves on the house) and will give it a try. My exterminator told me to wrap Sevin in tissue and stuff it into the hole and then plug it. He said he did it for 3 years running and never had any bees come back....
You have to put the trap in the sun. We have had great luck with it. If it is by there hole they know they can continue to chew on the already made hole.
Ok not everyone is successful with traps for carpenter bees, I have built 4 and put two on my log house one on a potting shed and one under a over hang. in one trap it only had 4 wasp. the other I had to empty twice because of being full of carpenter bees, the other nothing. a sure thing is WD 40 it works great . also i use liquid nail squirt in to the hole after WD has dried, and let it harden. I've used mothballs pushed into the holes then a aluminum in a ball and shove it in then cut off a dowel rod glueing it in.
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