Use of Insecticide-Impregnated Ear Tags for the Control of Face Flies and Horn Flies on Pastured Cattle

摘要: Three studies were conducted to evaluate the effectiveness of insecticide-impregnated ear tags in controlling face flies, Musca autumnalis DeGeer, and horn Haematobia irritans (Linn.), on pastured beef cattle. In one 16-week trial, polyvinyl chloride (PVC) treated with stirofos (Rabon) insecticide reduced fly numbers by 79% (P less than .05) 30% .05). Coumaphos (Co-Ral) dust bags used a separate herd produced an 86% reduction flies 18% flies. second study, 5 10% permethrin (Atroban), PVC-treated one-piece design tested. this 11 week control averaged 95% tag 77% 5% tag. Face 49% for 8 weeks No significant was achieved coumaphos bags, 93% 34% The third study tested permethrin, two-piece permethrin-treated polyurethane matrix. Fourteen-week 88% tag, 83% 71% polyurethane-treated 74% bags. 50% greater throughout trial all treatments.