I keep my grass mowed, weeds cut down as much as I can, and yet, my dogs seem to find the ticks wherever they are hiding. That's because the dirty little blood suckers are transported from place to place on other animals, where they lay their eggs. Then the eggs hatch and the ticks are successfully spread practically everywhere. Sure, my dogs have an insecticide treatment every month, but we humans don't and therein lies the problem. We humans have to be concerned about Lyme disease.