“…Sogatella furcifera (Horváth) belongs to the order Hemiptera (formerly known as Homoptera) and the family Delphacidae; It is a significant pest that primarily damages crops such as rice, corn, and sorghum by transmitting the rice black-streaked dwarf virus. As a migratory insect pest, Sogatella furcifera is among the three major planthoppers that pose a threat to rice production. , For a long time, chlorpyrifos, imidacloprid, thiamethoxam, pymetrozine, and buprofezin were the main insecticides used to control S. furcifera in Sichuan; however, their long-term misuse has led to varying degrees of resistance in the field populations. , Since 2016, the field populations of S. furcifera in the primary rice-growing regions of Sichuan have been monitored, and we found that they showed low to moderate resistance toward chlorpyrifos and thiamethoxam but were still susceptible to imidacloprid, buprofezin, and pymetrozine . The resistance of S. furcifera collected from Anhui, Hebei, Jiangxi, and Hunan were monitored, revealing that their resistance ratios (RRs) toward pymetrozine were more than 469-fold, up to 3605-fold .…”