A Trial of Imidachothiz on Prevent and Control of Nilaparvata Iugens Control

10% of Imidachothiz WP brought about excellent effect on prevent and control of Nilaparavata lugens in the field trials.When applying the dilution of 1000-folds,imidachjothiz resulted in the prevent and control effect of 83.46%, 94.03% and 96.12% respectively every 1,3 and 5 days;At the dilution of 1500-folds,the prevent and control effect of Imidachothiz against N.lugens were 80.23%,92.12% and 94.34% respectively every 1,3 and 5 days;At the dilution of 2000-folds,the effect resulted in 71.96%,84.59% and 88.38% respectively every 1,3 and 5 days after application.The results of the trials also indicated that the prevent and control effect of the mixture of buprofezin + monosultap 25% WP against N.lugens were 45.46%,50.03% and 54.73% at the dilution of 800-folds every 1,3 and 5 days after application;At the dilution of 800-folds,imidacloprid 25% WP only brought about 46.20%,49.29% and 54.18% of prevent and control eff3ect respectively every 1,3 and 5 days after application.It is suggested that imidachothiz had more effect against N.lugens than imidacloprid and the mixture of buprofezin+monosultap.