Summit Mosquito and Gnat Barrier spray is a convenient way to rid your backyard of mosquitoes, gnats, ants, ticks, fleas, and other outdoor insects. Easy to mix and apply with your own sprayer. By spraying the vertical surfaces that mosquitoes use as resting places such as fences, decking, and shrubbery, the homeowner can effectively kill and repel mosquitoes, gnats, and other annoying pests for up to four weeks. Summit Mosquito and Gnat Barrier spray contains permethrin, a residual insecticide that has been used in mosquito control for many years. In addition to mosquitoes, it also controls a wide variety of outdoor insects including ants, fleas, ticks, earwigs, and more. Spray on the lawn to also control chichbugs, crickets, grasshoppers, Japanese beetle grubs, mole crickets and sod worms. Use on trees and shrubs to kill tent caterpillars, aphids, bagworms, leafminers, mealybugs, spider mites, whitefly, and more.