Resistance detection of field populations of Nilaparvata lugens andSogatella furcifera to flupyradifurone in 2017

Flupyradifurone is a new neonicotinoid insecticide developed by Bayer CropScience. In order to explore the application prospects of flupyradifurone on rice planthopper, the resistance of ten field populations of Nilaparvata lugens from seven provinces in China and eight field populations of Sogatella furcifera from five provinces in China to flupyradifurone were evaluated using the rice-seedling dip method. The results showed that the populations of N. lugens in those ten areas showed low to moderate resistance resistance ratio (R_R)=6.1−17.4, among which the populations from Nanchang in Jiangxi, Xinyang in Henan, Liuan in Anhui, and Hangzhou in Zhejiang exhibited moderate resistance (R_R=10.1−17.4). In contrast, all field populations of S. furcifera were relatively sensitive to flupyradifurone (R_R=1.1−3.6) except the population (R_R=6.3) in Xiaogan. This study investigated the current resistance status of field populations of N. lugens and S. furcifera to flupyradifurone, and provids a theoretical basis for the scientific application of flupyradifurone in the control of rice planthopper.