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[Objective] The paper was to explore the field efficacy of 22% fipronil FS against sugarcane stem borer and thrips( Baliothrips serratus Kobus).[Method]The field trial was conducted by foliar spraying of 22% fipronil FS and mixed broadcasting with fertilizer in 2014. [Result]Foliar spraying of 22%fipronil FS at the dose of 50 m L /667 m~2 had the best control effect against sugarcane stem borer,and the control effect at 90 d post administration was 70. 70%,significantly higher than that of control agent(61. 86%). Medium and high dose of 22% fipronil FS had better control effects against sugarcane thrips. [Conclusion] Considering control effects against sugarcane stem borers and thrips as well as sugarcane yield,it is recommended that 22% fipronil FS is sprayed at medium concentration(50 mL /667 m~2).
[Objective] The paper was to explore the field efficacy of 22% fipronil FS against sugarcane stem borer and thrips (Baliothrips serratus Kobus). [Method] The field trial was conducted by foliar spraying of 22% fipronil FS and mixed broadcasting with fertilizer in 2014. [Result] Foliar spraying of 22% fipronil FS at the dose of 50 m L / 667 m ~ 2 had the best control effect against sugarcane stem borer, and the control effect at 90 d post administration was 70. 70% Medium and high dose of 22% fipronil FS had better control effects against sugarcane thrips. [Conclusion] Considering control effects against sugarcane stem borers and thrips as well as sugarcane yield, it is recommended that 22% fipronil FS is sprayed at medium concentration (50 mL / 667 m ~ 2).