Control Test of 5% Spinosad·Emamectin Benzoate OF against Rice Leaf Roller

In order to discuss control effect and operation technology of 5% Spinosad·Emamectin benzoate OF against rice leaf roller,3 different concerntration treaments of 300 mL/hm2,450 mL/hm2 and 600 mL/hm2 were used to study control effect on rice leaf roller.The result showed that 5% Spinosad·Emamectin benzoate OF had better control effect,control effect of 600 mL/hm2 were 82.76% and 84.61% respectively in 2011 and 2012.