Horse Lice Duster III – For use on horses, beef/dairy cattle, swine, dogs and cats. Contains 0.25% permethrin. Controls fleas, ticks & lice up to 10 days. Place contents in dust bag and suspend in areas frequented by animals such as gateways or lanes where animals pass to get water, feed, or minerals, loafing sheds and front of feeders. For face flies, bags must be located so animals will be forced to use daily & hung at height so face is dusted. Hand-apply 2 oz of dust per animal by shaker can or dust glove over head, neck, shoulders, back, legs & tailhead.