Reeves W K, Lloyd J E, Stobart R, Stith C, Miller M M, Bennett K E, Johnson G
USDA-ARS, Arthropod-Borne Animal Diseases Research Laboratory, 1000 East University Avenue, Laramie, WY 82071, USA.
J Am Mosq Control Assoc. 2010 Sep;26(3):302-5. doi: 10.2987/10-6005.1.
Culicoides sonorensis is the primary vector of bluetongue and epizootic hemorrhagic disease viruses in North America. Bluetongue disease is one of the most economically important arthropod-borne diseases of sheep in North America, because it causes significant morbidity and mortality and can lead to local quarantines and international trade restrictions. Long-lasting repellent pesticides could be applied to sheep as they are moved down from mountain pastures to protect them from biting midges until the 1st frost. We tested long-lasting pesticides on sheep as repellents against C. sonorensis. Both Python ear tags with 10% zeta-cypermethrin (9.8 g/tag) synergized with 20% piperonyl butoxide (PBO) and a 12-ml low-volume spray application of ready-to-use sheep insecticide (Y-TEX) with 2.5% permethrin and 2.5% PBO in an oil-based formulation were repellent to C. sonorensis for at least 3-5 wk after a single application.
索诺拉库蠓是北美蓝舌病病毒和流行性出血病病毒的主要传播媒介。蓝舌病是北美绵羊最重要的节肢动物传播疾病之一，因为它会导致显著的发病率和死亡率，并可能导致当地检疫和国际贸易限制。当绵羊从高山牧场转移下来时，可以给它们使用长效驱虫农药，以保护它们免受蠓虫叮咬，直到第一次霜冻。我们在绵羊身上测试了长效农药作为对索诺拉库蠓的驱避剂。带有10%高效氯氟氰菊酯（9.8克/标签）并与20%胡椒基丁醚（PBO）协同的蟒蛇耳标，以及一种即用型绵羊杀虫剂（Y-TEX）的12毫升低容量喷雾制剂，该制剂含有2.5%的氯菊酯和2.5%的PBO，呈油基配方，在单次使用后对索诺拉库蠓的驱避效果至少可持续3至5周。
