Comprehensive Control Technology of 20% Nitenpyram AS against Rice Hopper

[Objective] The aim was to study control effect of 20% Nitenpyram AS against rice hopper. [Method]The control effect of 20% Nitenpyram AS against rice hopper was studied through two-year field efficacy trials and field demonstration test. [Result]20% Nitenpyram AS had obvious control effect against rice hopper and was safe to natural enemy. So it is suggested that 20% Nitenpyram AS could be used to control rice hopper from newly-hatched nymph peak period to low instar nymphs peak period; the dose of 20% Nitenpyram AS was 300-450 ml/hm2; the water consumption was 750 kg/hm2,furthermore the water layer should be kept for 3-5 cm and 5-7 d. [Conclusion]The research result provides reference for the control of rice hopper.