Say goodbye to pesky insects and lice with Prozap Protectus Pour-On Insecticide IGR Cattle Fly & Insect Control for beef cattle and calves. This triple active formula is designed to kill chewing and sucking lice, horn flies, stable flies, horse flies, and deer flies, providing relief for your cattle. With a unique combination of an insect growth regulator (IGR), adulticide, and a synergist, this pour-on solution is a reliable and cost-effective solution that minimizes handling, time, and labor costs. Plus, the addition of diflubenzuron ensures that louse eggs are killed before they hatch, providing season-long control in just one application.