Abstract: Experiments were conducted on control against Hippota dorsalis adults in bamboo forests of Suicang, Zhejiang province with Sendebao and different concentration of fenvalerate+DDVP+somke agent(1:0.5:70 and 2:1:70). Test in outdoor cage showed that the corrected mortality rate of H. dorsalis adults reached 100% 2 days later. Field test demonstrated that the population of H. dorsalis adults decreased by 96% 15 days later. Comparisons on tested methods indicated that fenvalerate had advantage of lower cost, but Sendebao had more, like not affected by the weather, and safer to the environment