Evaluation of the field control efficacy of different insecticides against Nilaparvata lugens in rice
To compare the control effects and residual efficacy of different insecticides on Nilaparvata lugens in rice,as well as its safety to rice,a field efficacy comparison trial was conducted.The results showed that 20%Triflu-mezopyrim water-dispersible granules,10%Yizuochongmiding suspension,50%Nitenpyram soluble granules,and 22%Sulfoxaflor suspension had good control effects on Nilaparvata lugens and were relativly safe for rice growth.In par-ticular,20%Triflumezopyrim water-dispersible granules at 135 g/hm2 had a good control effect on Nilaparvata lugens and a long residual effect,with an efficacy of over 92%still maintained 14 days after application.It was recommended to use 20%Triflumezopyrim water-dispersible granules at 135 g/hm2,10%Yizuochongmiding suspension at 300 g/hm2,50%Nitenpyram soluble granules at 150 g/hm2,and 22%Sulfoxaflor suspension at 600 g/hm2 in rice production,alternat-ing and rotating their application.
万方数据
维普
