Yellow Jackets on the other hand? As soon as I see them starting to build a nest I do whatever it takes to kill them ASAP.
Yeah, that's my problem. That's what i am the most allergic to...like i won't even walk on that side of the house if i know they are there, and we flagged 3 separate hives and had them treated last year (all in the roots of my oak) and we had a termite guy come out, who flagged a bunch of holes that are new for this year, although we don't know if they are yellow jackets this time. We do have paper wasps, too, but i thought they rarely hived underground. I have also seen the classic fat bumble bee around, so some of those nests could be them, or considering the size of the tree, i wouldn't be surprised to find carpenter bees either.
Unfortunately, it has rained every weekend i've been home when i could try to watch them this year, so i don't know what is what in those holes. Damn ground bees.
But if i find yellow jackets again....sheesh. This is why i tried to start this thread for good answers.
I appreciate that it has been as active as it has, you guys are awesome. I'm glad this is a popular topic.
-Skinny