Patriot Insecticide Cattle Ear Tags are an economical and easy-to-apply system for controlling ticks, horn flies, lice and face flies on beef cattle and non-lactating dairy cattle. These injection molded ear tags containing 40.0% diazinon slowly release the active ingredient to substantially reduce pyrethroid-resistant horn flies for up to five months. 20 tags per package - orange. Apply with Allflex Total Tagger.