Finally A Natural Fly Spray That Really Works!! Proven to outperform other leading natural fly sprays* Repels and kills horn, stable, house, horse and deer flies, mosquitoes, gnats, controls lice. Contains the botanical repellent PyGanic®, the first pyrethrum listed by the Organic Materials Review Institute for use in organic farming. Also contains botanical and essential oils of citronella, clove stem, thyme and corn mint. Water based, alcohol free