 out they will drill holes coming out so instead of having one hole from one carpenter bee you'll have four five six seven eight from all the babies from last year chewing through so it's important to treat that hole before you seal it because you don't want them and they will return every year so if you let it go and you don't deal with it it will grow into a bigger problem over the course of years so it's best to deal with it very quickly and we found the best way to deal with carpenter bees is to actually insert uh