State Key Laboratory of Veterinary Etiological Biology, Key Lab of Grazing Animal Diseases MOA, Key Laboratory of Veterinary Public Health of Ministry of Agriculture, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China.
Exp Parasitol. 2013 Aug;134(4):405-8. doi: 10.1016/j.exppara.2013.04.001. Epub 2013 Apr 26.
Currently, the most efficient and widely used method for tick control is the application of acaricides, especially deltamethrin and alpha-cypermethrin, two pyrethroids with neurotoxic action. In this study, the in vitro efficacy of deltamethrin and alpha-cypermethrin was assessed on engorged female Haemaphysalis qinghaiensis ticks. An in vitro bioassay (adult immersion test) was carried out to determine the LC (lethal concentration) 50 and LC90 of both compounds, calculated by probit analysis. The LC50 and LC90 values of deltamethrin and alpha-cypermethrin were 5.67 (LC50) and 51.72ppm (LC90), and 166.56 (LC50) and 1366.69ppm (LC90), respectively. This study provides important information on the efficacy of deltamethrin and alpha-cypermethrin for the control of H. qinghaiensis.
目前，控制蜱虫最有效和广泛使用的方法是使用杀蜱剂，特别是具有神经毒性的两种拟除虫菊酯：氯菊酯和氯氰菊酯。在这项研究中，评估了氯菊酯和氯氰菊酯对已饱血的青海血蜱雌蜱的体外功效。通过浸浴法（成虫浸浴试验）进行了体外生物测定，以通过概率分析计算出两种化合物的致死浓度 50（LC50）和 90（LC90）。氯菊酯和氯氰菊酯的 LC50 和 LC90 值分别为 5.67（LC50）和 51.72ppm（LC90），以及 166.56（LC50）和 1366.69ppm（LC90）。这项研究为控制青海血蜱提供了氯菊酯和氯氰菊酯的功效的重要信息。
