FlyRID Plus is a multi-species, multi-purpose insect control and fly spray that provides powerful yet safe protection against harmful pests. Controls flies, mosquitoes, and gnats on horses. Also provides 35-day control of fleas and ticks on dogs. This ready-to-use permethrin and citronella product is for use directly on animals (horses, dogs, goats, sheep, hogs, beef/dairy cattle) and their premises as well as other indoor/outdoor applications.