Tri-Tec 14 Fly Repellent by Farnam is a powerful, long-lasting insect control solution designed to repel and kill six types of flies, plus gnats, mosquitoes, lice, and deer ticks. This fast-acting formula combines botanically-derived pyrethrins with cypermethrin for superior fly protection. The water-based formula is gentle on sensitive-skinned horses and contains sunscreen to shield against harmful UV rays. Offering up to 14 days of continuous protection, Tri-Tec 14 can be applied as a spray or wipe for effective, all-around coverage. Product Details: Combines pyrethrins and cypermethrin for fast-acting fly control Provides 14-day protection against horse, house, stable, face, horn, and deer flies Also repels and kills gnats, mosquitoes, lice, and deer ticks Water-based formula is gentle on sensitive-skinned horses Contains sunscreen to protect against harmful UV rays Can be applied as a spray or wipe for convenience