Field Trial of Spinosad·Emamectin Benzoate 10% WG against the 3 Generation of Rice Stem Borer

The objective of this study was to investigate the synergic effect of the mixture of spinosad and emamectin on the rice stem borer.The control effect was evaluated by spraying of spinosad·emamectin benzoate 10% WG to the stems of rice plants in field.[Results] The higher the dose,the greater the protecting seedling and insecticidal effects on rice of spinosad·emamectin benzoate 10% WG,while the effects of spinosad 5% WG and emamectin 5% WG used separately were both significantly lower than those of the mixture.[Conclusions] The synergic effect of the mixture of spinosad and emamectin on the rice stem borer were obviously.