Farnam Mosquito Halt Horse Repellent Spray, 32-oz bottle, bundle of 2; Stop flies and mosquitoes in their tracks with Farnam Mosquito Halt Spray for Horses! This ready-to-use spray works to protect your horse from mosquitoes and other annoying insects that may spread disease. It contains two insecticides and two repellents for residual control of mosquitoes, gnats, face flies, stable flies, house flies, mites, chiggers and lice. The soothing spray also includes aloe and lanolin to comfort your horse's skin. Mosquito Halt is pleasant smelling and may be just what you need in the height of the season. Get tough on mosquitoes with Farnam