Having problems with ants in our cabin. They're getting in on the metal roof somehow. But, here's the kicker, they are climbing up the telephone pole out by the road and following the phone line onto the roof of the cabin.I sprayed some Orkin bug spray all around and on the telephone pole as well as the phone line itself. Seems like I should have some sort of physical barrier on the phone line itself, but, what the heck would work??