Farnam SimpliFly Feed Through Fly Control Daily Supplement for Horses, 3.75 lb, EPA Approved Palatable Pellets, Prevents Stable Flies in Manure and Break and Prevents the Fly Life Cycle, 60 Day Supply

Feed-Through Fly Control for Horses: SimpliFly breaks and prevents the fly life cycle in manure, helping reduce stable fly populations and providing reliable fly control for horses in barns, stalls, and pastures
Stops Flies Where they Breed: The active ingredient diflubenzuron passes through the horse unabsorbed and works directly in manure to prevent fly larvae from developing into adult flies
Safe for Daily Use in All Horse Breeds: Add palatable alfalfa-based pellets to your horse’s daily feed for consistent fly control in stalls, pastures, paddocks and dry lots