Prozap Insectrin Dust Shaker is a ready-to-use insect repellent for direct application to poultry, swine, horses, and livestock. It works on animals or animal bedding to control ticks, fleas, Northern Fowl Mites, flies, and lice. It is effective in difficult-to-reach crevices and cracks. | Neogen Prozap Insectrin Dust Shaker | Size 2 lb