This all natural fly spray is one of the best I have found, it is in a base of apple cider vinegar, and the flies just bounce off instead of land! It contains oils of cat nip, citronella, cedar wood, eucalyptus, lavender, calendula, myrrh, and tea tree, in fractionated coconut oil. Helps to keep away ticks and fleas, repels flies and helps to heal wounds. Can be used on mares and foals. The 8 oz size is $13.75 and the 16oz. size is $22.50 More details...