Prozap Insectrin Dust is a ready-to-use dust containing .25% permethrin for use on animals, poultry, and bedding. Controls lice, fleas, northern fowl, mites, face flies, horn flies, and ticks found on-animal and in bedding, cracks, and crevices. For use on beef and dairy cattle, horses, swine, poultry, dogs, and cats.