Specifically designed for use on horses, Flyspray 44 is Fiebing’s premium fly control product. This unique blend of four insecticides provides a long-lasting protective barrier against pests. One application provides days’ worth of protection from mosquitos, house flies, stable flies, horse flies, horn flies and gnats. This product also contains lanolin to give the horse’s coat a high sheen after brushing. Contains pyrethrins, piperonyl butoxide and citronella oil.