I am having a carpenter ant problem, at my house. I have been treating the problem myself, with only marginal success. I have treated the outside of the house with some diazonon I had left over. I sprayed all of the widow sills and cracks I have seen with permetherin. I have also treated the entire lawn with Talstar. Im still having problems. I hate to call in a professional if I dont have to. Anyone know how to more effectively treat this problem?