Bronco E Equine Fly Spray insecticide and repellent spray is for horses, ponies, foals and their premises. Repels and kills stable flies, horse flies, house flies, face flies, horn flies, deer flies, mosquitoes, lice, fleas, ticks, chiggers and gnats. Bronco-e Equine Fly Spray contains 0.033% prallethrin, 0.50% piperonyl butoxide, and 0.10% permethrin. Citronella scent.