Insect problems, like diseases, are apt to develop when conditions are favorable to them. As the weather warms up, insect populations and activity increase. Your first and best line of defense against these pests is to provide optimal growing conditions for your lawn. The objective is to cultivate a thick, healthy turf which isn't overly attractive to pests as either habitat or food. Being more resilient, such lawns are also better able to survive the inevitable foraging of insects.