Experiments on Control of Liriomyza sativae Blanchard with 22.5% Chlorpyrifos+beta-cypermethrin EC

Experiments on control of Liriomyza sativae Blanchard with 22.5% Chlorpyrifos + beta-cypermethrin EC were conducted in tomato field.Field trial results showed that 22.5% chlorpyrifos + beta-cypermethrin EC had the better effect on the controlling of Liriomyza sativae Blanchard.The control effect of 50 mL/667m2 to 60 mL/667m2 of 22.5% chlorpyrifos + beta-cypermethrin EC were 89.2% to 92.4% after application three days,then after application seven days it reached 93.0% to 95.1%,which were significant different from 4.5% beta-cypermethrin EC and 40% chlorpyrifos EC.