There were carpenter ants in the framed part of my greenhouse/sunshed last year. I have just torn off the foil-covered insulation board and replaced it yesterday. Behind the insulation board in the greenhouse, what had those ants been up to? Nothing.
What damage had been done to the wood sill and studs?? None that I could see. No hole into the plywood so they didn't work their way out into the cedar exterior.
Where were they? Entirely in the foam board. And, "they" amounted to 1 ant . . . There was an area hollowed out with multiple entrance/exits. They/he riddled about 3sqft in 2 boards.
I suppose I should not complain since this is a first in about 15 years but I don't want an ant to cause me so much trouble again. I suppose he was building a nest to use this year. They don't eat wood? What do they eat? What do you do about carpenter ants?