Stop mosquitoes in their tracks with Farnam Mosquito Halt Horse Repellent Spray. This unique formula provides quick knockdown, stopping and repelling pests before they have a chance to bite. This easy-to-use spray works to combat against mosquitoes, gnats, face flies, stable flies, house flies, mites, chiggers and lice. Made with two insecticides and two repellents, this spray also includes aloe and lanolin to help soothe skin and keep your horse looking his best. Mosquito Halt is great for uses on horses, ponies and foals to keep them guarded against pesky insects.