Co-Ral 1% Livestock Dust may be used to fill cattle dust bags or it may be applied directly to cattle, swine or swine bedding by use of a shaker can. When used as recommended, Co.Ral 1% Livestock Dust controls horn flies and lice on beef and dairy cattle and lice on swine. Co.Ral 1% Livestock Dust will also reduce face fly populations on cattle; however, as face flies are able to travel over an area of several miles, best reduction of face fly populations is achieved when Co-Ral 1% Livestock Dust is used on an area-wide basis.