Country Vet Instant Knockdown CV-80D Farm & Dairy Liquid Insect Control 18.5 oz0. 50% Pyrethrins and 4. 0% PBO instantly kill biting flies, house, flies and mosquitoes, as well as many crawling insects. Labeled for use in beef cattle operations, dairy farms, milk rooms, poultry houses, barns and stables Kills and repels flies and mosquitoes that may carry the west nile virus Also combats small flying moths, gnats, cockroaches, ants, fleas, crickets, asian beetles, lice, clover mites and mud daubers Use as a premise spray or