This supplement prevents adult horn fly emergence from the manure of treated cattle.
When use as directed, Vitalix #5 IGR Fly Tub will provide sufficient (S)-methoprene insect growth regulator to prevent the emergence of adult horn flies from manure of treated cattle. Existing adult horn flies will not be affected. Start feeding before horn flies appear and continue use until cold weather marks the end of the horn fly season. Allow free choice to cattle.
Cattle should consume an average of 0.8 ounces of Vitalix #5 IGR Fly Tub per 100 lbs. of cattle body weight per day, which is equivalent to 8 ounces per day for a 1,000-pound cow