For years now we have had swarms of wood bore bees eating our house and storage buildings. I THINK we have found the solution to get rid of them without insecticides. I saw recently where a fellow used large brown paper grocery bags blown up or stuffed to resemble a hornet's nest hung in the area when the bees are. So far it looks like it is working. Just after I hung two of them up we saw one bee, since then we have seen none. I hope it continues.