Invest in a cattle and swine fly spray that works. Diluted and used as a spray or in a backrubber, the powerful, active ingredients in the Starbar Prolate/Lintox-HD Insecticidal Spray and Backrubber for cattle & Swine kill a variety of insects on contact. This fly repellent controls horn flies, lice, mites, ticks and even mange. With a number of different application styles, this pour-on insecticide makes your animal's life easier.