Equi-Spot® Spot-On Fly Control contains 45% Permethrin to effectively protect your horses. This treatment stays on for longer than sprays. There are three defense zones that need to be covered to effectively apply this fly control treatment. The chest, head and neck are defense zone 1, the sides of your horse's body are defense zone 2, and the legs or your horse are defense zone 3 (video below).
Note: Safe enough for horses as young as 12 weeks. One easy to apply 10 mL applicator lasts for 14 days. One 3-pk lasts 6 weeks.