Farnam 100528257 Fly Spray, 15 oz Bottle

You can't seal your horse in a fly-free zone, but Endure® sweat-resistant fly spray for horses is the next-best option. Its unique formula keeps on working, even in wet conditions such as sweat and rain. Protect your horse from biting and nuisance flies, gnats and deer ticks that may transmit Lyme disease.