THIS ITEM MAY ONLY BE SHIPPED VIA GROUND Insecticidal spray and backrubber for livestock. Contains the powerful active ingredient, phosmet. Controls horn flies, lice, sarcoptic mange and ticks on cattle. Controls lice and sarcoptic mange on swine. Prolate/Lintox-HD is a liquid product that kills pests on contact. Diluted and used as a spray or in a backrubber, it provides effective treatment of flies, lice, mange mites and ticks on cattle. Prolate/Lintox-HD also can be used as a spray for treatment of swine with lice or sarcoptic mange infestations. Following appropriate label instructions, apply diluted product directly to beef and nonlactating dairy cattle as a spray or backrubber treatment. For swine, apply only as a dilute spray solution.