Three treatments of diflubenzuron with either cottonseed oil or malathion ultra low volume were tested under Boll Weevil Eradication Program conditions in the Concho River Valley of Texas. All treatments were aerially applied as ultra low volume (ULV) at either 14 or 16 ounces per acre. These applications were compared for effect on boll weevil, beet armyworm, cabbage looper and beneficial arthropod populations. Treatments were also compared to a large acreage of cotton that had no insecticide treatments. The addition of di-flubenzuron protected cotton bolls as compared to those on the untreated.