Keep your horses free from the annoyance of stable flies, horn flies, and house flies all season long with this convenient, long-lasting solution! This easy-to-use formula provides 76 daily doses and is simply added to your horse's top-dressed feed. The larvicide passes through the horse and targets flies developing in the manure, eliminating them without harming dung beetles, nature's manure disposal crew. Enjoy a calmer, healthier environment for your horses with this season-long fly control solution!