| Crynodeb: | Monitoring is an important component of insecticide resistance management. In this study, resistance monitoring was conducted on 18 field populations in China. The results showed that <i>S. furcifera</i> developed high levels of resistance to chlorpyrifos and buprofezin, and <i>S. furcifera</i> showed low to moderate levels of resistance to imidacloprid, thiamethoxam, dinotefuran, clothianidin, sulfoxaflor, isoprocarb and ethofenprox. <i>Sogatella furcifera</i> remained susceptible or low levels of resistance to nitenpyram. LC<sub>50</sub> values of nitenpyram and dinotefuran, imidacloprid, thiamethoxam, clothianidin and chlorpyrifos exhibited significant correlations, as did those between dinotefuran and thiamethoxam, clothianidin, sulfoxaflor, imidacloprid, isoprocarb and buprofezin. Similarly, significant correlations were observed between thiamethoxam and clothianidin, sulfoxaflor and imidacloprid. In addition, the activity of EST in field populations of <i>S. furcifera</i> were significantly correlated with the LC<sub>50</sub> values of nitenpyram, thiamethoxam and clothianidin. These results will help inform effective insecticide resistance management strategies to delay the development of insecticide resistance in <i>S. furcifera</i>.
|
|---|