Some months ago, I found some damage which I assumed was termite damage. The damage was in some very old posts in some very old sheds.
Then, a couple of months ago, I found carpenter ants in a huge, old, gorgeous oak tree. A mess of them and I'm pretty sure, their main colony.
I sprayed with malathion --- no effect --- and put down some fire ant stuff --- no real effect. But I finally got hacked off and poured bleach, then vinegar down the middle of the tree. No more ants.
True, the survivors likely moved the colony. But I've found no evidence they moved it further into my property.
:yeeha: