Wang Shaoli, Zhang Youjun, Yang Xin, Xie Wen, Wu Qingjun
Department of Plant Protection, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, P. R. China (
J Econ Entomol. 2017 Apr 1;110(2):660-666. doi: 10.1093/jee/tox040.
The sweetpotato whitefly, Bemisia tabaci (Gennadius), is an important pest of many crops worldwide. Because control of B. tabaci still depends on the application of insecticides in China, monitoring the insecticide resistance of B. tabaci populations is essential for achieving control and for managing resistance. In this study, field populations of B. tabaci on vegetables were collected in three regions of China in 2011, 2012, and 2013. The resistance of these populations (all of which were determined to belong to biotype Q) to eight insecticides (abamectin, spinetoram, imidacloprid, thiamethoxam, acetamiprid, nitenpyram, chlorpyrifos, and bifenthrin) was assessed by the leaf-dip method. No resistance to abamectin and spinetoram was detected. All of the B. tabaci populations exhibited resistance to neonicotinoid insecticides; the resistance was 3.6- to 125.0-fold greater than that of a susceptible reference strain. The traditional insecticides chlorpyrifos and bifenthrin had very low toxicity. Bemisia tabaci specimens in some regions exhibited annual differences in resistance to some of the insecticides. The data presented will be helpful for making decisions on the proper insecticide usage in the field.
烟粉虱，即烟粉虱（Bemisia tabaci (Gennadius)），是全球许多作物的重要害虫。在中国，由于对烟粉虱的防治仍依赖于杀虫剂的使用，监测烟粉虱种群对杀虫剂的抗性对于实现防治和管理抗性至关重要。在本研究中，于2011年、2012年和2013年在中国三个地区采集了蔬菜上的烟粉虱田间种群。采用浸叶法评估了这些种群（所有种群均被确定属于Q型生物型）对八种杀虫剂（阿维菌素、多杀霉素、吡虫啉、噻虫嗪、啶虫脒、烯啶虫胺、毒死蜱和联苯菊酯）的抗性。未检测到对阿维菌素和多杀霉素的抗性。所有烟粉虱种群均对新烟碱类杀虫剂表现出抗性；抗性比敏感参考品系高3.6至125.0倍。传统杀虫剂毒死蜱和联苯菊酯的毒性很低。一些地区的烟粉虱标本对某些杀虫剂的抗性存在年度差异。所呈现的数据将有助于在田间做出正确使用杀虫剂的决策。
