Field Efficacy Trial of Emamectin Benzoate.Chlorpyrifos AgainstCnaphalocrocis Medinalis

Results of field efficacy trial showed that,25% emamectin benzoate.chlorpyrifos EW had a better control effect against cnaphalocrocis medinalis,which means 73.85%~82.01% at 60~80 ml/667m 2 after application in 16 days,and that was the same or slightly higher to CK pesticides: 1% emamection-benzoate EC at 60 ml/667m 2 with control effect of 79.99% and 40% chlorpyrifos EC at 100ml/667m 2 with control effect of 76.01%,that is to say,cnaphalocrocis medinalis could be effectively controlled with 25% emamectin benzoate.chlorpyrifos EW,and the pesticide was recommended for application.