JustiFly Feedthrough for Cattle and Calves

Economically priced Insect Growth Regulator feed-through, non-toxic larvicide.
* Approved for pasture cattle and feedlot cattle
* Controls stable, horn, house, and face flies for pennies per head per day
* Just mix and feed. No oily insecticides, dusts, or sprays
* Zero animal-handling stress
* No withdrawal period. No milk disposal issues.
* The active ingredient, Diflubenzuron, affects the fly by inhibiting chitin, which retards the development of their exoskeleton, thus causing death shortly after they hatch.