As part of a horn fly control program many producers feed a loose mineral or some other type of supplement with an insect growth regulator (IGR) such as methoprene or diflubenzuron. Insect growth regulators do not kill adult flies but will prevent larvae and pupae in the manure from turning into adult flies. For insect growth regulators to be most effective, cattle need to consume a minimum dose for their weight on a regular basis. In many loose mineral supplements, methoprene is included at a rate of 0.010% or 0.014%; the higher rate is targeted for cows more than 1,000 pounds. Are you a certified Texas Beef Quality Assurance producer? Training is free and available online and at one-day in-person workshops. Read more…
Recent Posts
TSCRA commends USDA’s continued border closure to combat spread of New World screwworm
FORT WORTH, Texas (July 9, 2025)— Texas & Southwestern Cattle Raisers Association President Carl …
Crime watch: Black Angus bull missing in Coleman County
Texas & Southwestern Cattle Raisers Association Special Ranger HD Brittain, District 19 in West …
Continue Reading about Crime watch: Black Angus bull missing in Coleman County
Texas Ranch Receives Regional Environmental Stewardship Award
SAN DIEGO (July 8, 2025) – McFaddin Ranch in Victoria, Texas, was recognized today by the National …
Continue Reading about Texas Ranch Receives Regional Environmental Stewardship Award