We have cedar trees and at certain times they are full of tiny ticks you can barely see. I had to put seven dust on the ground from the back door to the wash house for my mother because she could not go out there without being covered in them. I just punched holes in a gallon can and made a wire bale. Filled it with seven dust and sprinkled it in a wide path for her to use going and coming. We kept the washer, dryer, and freezer along with canned jars of food in what we called the wash house so she had to go out there fairly often. It worked.