Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, PR China.
State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Science, Hubei University, Wuhan, PR China.
J Econ Entomol. 2019 Aug 3;112(4):1866-1874. doi: 10.1093/jee/toz109.
In this study, the sensitivity of 20 field populations of Chilo suppressalis (Walker) from five provinces in China to seven insecticides was evaluated during 2016-2018. The results indicated that 20 field populations of C. suppressalis had evolved moderate to high levels of resistance to triazophos (RR 64.5-461.3) and chlorpyrifos (RR 10.1-125.0). Furthermore, C. suppressalis exhibited low to moderate levels of resistance to abamectin (RR 6.5-76.5) and decreased susceptibility to cyantraniliprole (RR 1.0-34.0). The population collected from Nanchang in Jiangxi Province (JXNC) showed high resistance to chlorantraniliprole (RR 148.3-294.3), and other geographical populations remained susceptible to moderate levels of resistance (RR 1.0-37.5). In contrast, C. suppressalis remained susceptible to low levels of resistance to spinetoram (RR 1.0-6.7) and spinosad (RR 1.0-4.6). Significant correlations were found between the Log LC50 values of chlorantraniliprole and cyantraniliprole, chlorpyrifos and triazophos, as well as cyantraniliprole and chlorpyrifos and triazophos. Similarly, significant correlations were found among abamectin, chlorpyrifos, and triazophos. In addition, a significant correlation was also observed between the activity of the detoxification enzymes and the log LC50 values of chlorantraniliprole, cyantraniliprole, abamectin, chlorpyrifos, and triazophos. The findings provide an important reference for implementing effective resistance management strategies and the development of new insecticides in insect pest control.
在这项研究中，评估了 2016-2018 年间来自中国五个省份的 20 个二化螟田间种群对 7 种杀虫剂的敏感性。结果表明，20 个二化螟田间种群对三唑磷（RR64.5-461.3）和毒死蜱（RR10.1-125.0）表现出中等至高水平的抗性。此外，二化螟对阿维菌素（RR6.5-76.5）表现出低至中等水平的抗性，对氰氟虫腙的敏感性降低（RR1.0-34.0）。来自江西南昌的种群（JXNC）对氯虫苯甲酰胺表现出高抗性（RR148.3-294.3），而其他地理种群对中度至高度抗性仍然敏感（RR1.0-37.5）。相比之下，二化螟对螺虫乙酯（RR1.0-6.7）和多杀菌素（RR1.0-4.6）仍保持低水平的抗性。氯虫苯甲酰胺和氰氟虫腙、毒死蜱和三唑磷的 LogLC50 值之间存在显著相关性，氯虫苯甲酰胺和毒死蜱、三唑磷之间也存在显著相关性。同样，阿维菌素、毒死蜱和三唑磷之间也存在显著相关性。此外，解毒酶的活性与氯虫苯甲酰胺、氰氟虫腙、阿维菌素、毒死蜱和三唑磷的 LogLC50 值之间也存在显著相关性。这些发现为实施有效的抗性管理策略和开发新的杀虫剂防治害虫提供了重要参考。
