Used to use Diazion, sp?, and it worked great so naturally they took it off the market. Last year we had a column of ants coming from up in the woods, right to our house. I followed the column into the woods and found their nest about 100 yards from the house. They certainly will travel. Poured every insecticide I had on hand into and around their lair and put the hurts to them because all activity stopped and has not resumed since. I just checked the nest last week and no activity. If you can track down their nest it gives you an advantage. Carpenter ants get into the house and it can be a REAL big deal. My wife freaks out when she sees an ant anywhere near the house.
