Reduced risk pesticide status from the EPA

Continual treatment prevents house and stable fly development in your horses manure

No organophosphates

Quick and easy. Just add to horses feed

Drastically reduce your fly problem by breaking the fly life cycle with SimplyFly Feed-Thru Fly Control. Regular use of this Farnam product prevents fly larva from maturing into adults. The EPA has granted this product reduced risk pesticide status. Diflubenzuron is the active ingredient in SimplyFly Feed-Thru Fly Control. This is a 50 lb. container.