Martin's Cyonara Plus Pour-On Insecticide provides effective control against horn flies, and season-long control of lice. For use on beef cattle, cows, and calves. Martin's Cyonara Plus Pour-On Insecticide is ready to use, no dilution necessary. One gallon treats up to 378 head of 600 lb. cattle. Apply 10 ml for calves under 600 lbs., 15ml for cattle over 600 lbs. down the backline. Contains 1% lambda cyhalothrin and 5% piperonyl butoxide. Ready-to-use liquid.