title: Clinical evaluation of insecticide-impregnated tags attached to chains and used as backrubbers for control of Haematobia irritans.
abstract: Fenvalerate and permethrin insecticide tags were tested for horn fly (Haemotobia irritans) control. Three fenvalerate-impregnated ear tags attached to a chain and used as a backrubber controlled horn flies on steers for 8 weeks, and six tags provided 18 weeks control. Ten tags impregnated with permethrin failed to control horn flies. The choice of insecticide in tags attached to chains and used as backrubbers for horn fly control may be important, as fenvalerate and permethrin (both pyrethroids) varied in effectiveness.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control; D004175:Diptera; D004478:Ectoparasitic Infestations / Q000517:prevention & control / Q000662:veterinary; D007300:Insect Control / Q000379:methods*; D007306:Insecticides; D009570:Nitriles; D026023:Permethrin; D011722:Pyrethrins
chemical_list: D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; D026023:Permethrin; C017690:fenvalerate