Pro-Force Fly Spray provides rapid knockdown, kill, and repellency of pests for up to 14 days. Pro-Force kills and repels biting flies, stable flies, horn flies, house flies, face flies, horse flies, deer flies, gnats, carpenter bees, no-see-ums, fleas, ticks, chiggers, lice, and mosquitoes. Pro-Force is for use on horses, ponies, foals, dogs, and as a premise spray. Kills fleas and ticks on dogs. Pro-Force Fly Spray contains 0.2% permethrin, 0.1% pyrethrins, and 0.48% n-octyl bicycloheptene dicarboximide. Water-based formula.