Stop flies and mosquitoes in their tracks! Mosquito Halt repellent spray for horses protects your horse from mosquitoes and other annoying insects that may spread disease. Farnam's fly and mosquito spray for horses contains two insecticides and two repellents for residual control of mosquitoes, gnats, face flies, stable flies, house flies, mites, chiggers, and lice. Aloe and lanolin help soothe your horse's skin. Mosquito Halt is pleasant smelling and just what you need in the height of the season when mosquitoes can be at their worst! Get tough on mosquitoes as they can transmit serious diseases like West Nile Virus, Eastern Equine Encephalomyelitis, and Western Equine Encephalomyelitis.