I have a problem with wood boring bees.......I watched some videos on YouTube.......and decided to try this solution.......had some left over 4x4 from my saw horse build......bought some Mason jars.......and made these traps........
Results after less than one day.........they work!!
I am hopeful that you go to YouTube to watch some videos on this for information that is lacking here.......but, note that the access holes were drilled with a ½" drill into the central hole of about ¾".......and were drilled upward at a 45° angle.......this gives the bees an opening just wide enough to accommodate their bodies.......and they are apparently attracted to light.......so, once in the trap via the access hole they are attracted downward into the glass jar.......and are (hopefully) unlikely to find their way out.......
The above uses 2x4's and has a cute little roof. I'm going to make a longer one with multiples levels and a small front desk and call it the Hotel California, where they can check out anytime they like but can never leave.
I made several of these and they did not work. I made the hole 3/8" and maybe it was too small.
What seems to have worked was to take a gray plastic bag and fluff it up with other bags and tie a knot in the top and hang it up under a rafter so that it looks lik a hornet's nest. The bumble bees are afraind of hornets and go away.
Well, I've got 12 carpenter bees in my three traps and counting.......certainly, the size of the holes they use to get into the traps are important......so is where you place the traps.......and the choice of wood you used is important (soft woods like cedar are ideal)......
I'm new at this and just learning......maybe some well placed saw dust might help??.......or other enticements......but, they do work.
My house is trimmed with western red cedar and the bees were having a field day with it. There were so many we used to paly "Bee Tennis" with them. I would go out with an old tennis racket and swat as many as I could. On the first day they were threatening and I would swat maybe a dozen. They learned quickly and the next day they were not as threatening and I would only get three or four. After that they would not approach and I got few or none. They seemed to learn the location and return year after year. (?) Eventually I had the house covered in vinyl and aluminum and I told the guys to do a really thorough job on the rear. You should have seen all the buzzing around and heard all the angry buzzing from the ones that were trapped. They gave up and moved to my shed. I tried the traps and then the fake hornets nest. Not nearly so many any more.
I do wonder if there is anything beneficial about them?
Don't get any around your wooden statuesque friend or your may have some examples of boring that will answer your question......and you will not feel your usual level of "excitement"......