MGK® Flynexx Granules in a 35-pound bag acts as an insect growth regulator and affects the fly larvae molting process. Applying Flynexx to fly breeding sites gradually reduces the fly population because flies never reach adulthood. The versatility of the water-soluble granule formulation allows you to select the most convenient application, either dry scattering or mixing with water and spraying. Flynexx is suitable for cattle, hog, poultry facilities, or horse barns.