Use of pyrethroid impregnated tags in the control of sheep headfly disease.
Plastic tags containing 8.5 per cent w/w cypermethrin or 10 per cent w/w permethrin reduced the severity of damage caused to sheep by the headfly Hydrotaea irritans. A similar pattern of protection extended from the tagged ewes to their untagged lambs. Tags containing 8.5 per cent w/w fenvalerate failed to reduce the level of headfly damage in gimmers.
D000818:Animals; D004175:Diptera; D004478:Ectoparasitic Infestations / Q000517:prevention & control / Q000662:veterinary*; D005260:Female; D007306:Insecticides / Q000008:administration & dosage / Q000627:therapeutic use*; D009570:Nitriles; D026023:Permethrin; D011722:Pyrethrins / Q000008:administration & dosage / Q000627:therapeutic use*; D012756:Sheep; D012757:Sheep Diseases / Q000517:prevention & control*
D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; C017160:cypermethrin; D026023:Permethrin; C017690:fenvalerate