This is a Perimeter pest control application that is sprayed around the base of your home to help prevent bugs and insects from entering your home. This will control for up to 6 weeks. An insecticide perimeter treatment serves as a first line of defense around your home, stopping pests before they enter. This type of treatment offers one of the best insecticide defenses against outdoor pests that migrate inside for winter, including boxelder bugs, stink bugs, and Asian lady beetles. Perimeter treatments form a barrier on exterior surfaces – house, exposed foundation, soil and nearby plant material. Typically a perimeter treatment blankets a 3-foot-wide zone in two directions: from the ground up the house wall and from the house wall outward. Timing Is Key For fall treatments, timing is critical. Get the perimeter treatment in place before insects start gathering in large numbers. Insects migrate toward winter shelter based on changes in temperature and day length. Contact your local extension office to learn approximate times you can expect insect invasions.