Our NEW Perimeter Shield is an outer barrier protection program that is applied around the perimeter of your home every two to three months to reduce spiders and ants and help prevent them from entering your home through your foundation. Our Perimeter Shield product has been formulated with the same exceptional level of science used to develop our industry leading mosquito and tick control formulas. Perimeter Shield is one more way you can rely on us to help you enjoy your property more without having to worry about annoying pests.