Field trials of 20% tebufenozide SC against Spodoptera exigua Hübner.

[Objective] The study was aimed to determine and evaluate control effect and security of 20% tebufenozide SC against Spodoptera exigua Hbner,which would provide technical support for its promotion and utilization. [Method] By using foliar spray method,control effects of different concentration of 20% tebufenozide SC and 25 g/L deltamethrin EC against S. exigua were determined. [Result] 20% tebufenozide SC had better control effects on S. exigua. After spraying for 3 and 7 d,control effects of 20% tebufenozide SC in each treatment could reach 81% and 84%,which was higher than 25 g/L deltamethrin EC treatment. [Conclusion] 20% tebufenozide SC for controlling S. exigua had good effect,which had permanent effectiveness for over 7 d. It also caused less environmental pollution,and was safe to cabbage,being the ideal pesticide for controlling S. exigua in vegetables.