Perkins post control was recommended to me by a good friend. I had a bad box elder bug problem. They were everywhere on the south side of my house. They showed up on time and they treated my whole yard as well as the inside of my house. The past week I keep checking for bugs, and guess what? Their gone, absolutely no sign of them. I love these guys, they really know how to get rid of bugs. Highly recommend these guys, there 5he best.