pretty sure the carpenter ants are IN the northeast corner of my house. Last year's chase didn't work, found some in ground at that corner when digging weeds yesterday. I have a friend who is an exterminator who I didn't call last year, I used a multi species bait instead. Sprayed Bayer systemics on queen carpenter ants and they kept on moving til I got some wasp spray after them, don't know how many got away while I was running for the garage.. I don't buy home depot bug sprays anymore except the wasp spray