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中文摘要：
测定了溴氰虫酰胺对小菜蛾、斜纹夜蛾不同种群的毒力,结果表明,小菜蛾对溴氰虫酰胺具有中等水平的抗性,而斜纹夜蛾对其敏感性较高,未表现出明显的抗性.不同剂量10％溴氰虫酰胺悬浮剂、15％茚虫威悬浮剂和24％虫螨腈悬浮剂对小菜蛾和斜纹夜蛾的田间药效试验结果表明,溴氰虫酰胺1 500倍液防治小菜蛾效果最好,防效为91.49％;溴氰虫酰胺1 500倍液和2 000倍液防治斜纹夜蛾效果最好,防效均达到90％以上.溴氰虫酰胺是防治斜纹夜蛾的首选药剂,应有限制地使用其防治小菜蛾.
英文摘要：
Toxicity of cyantraniliprole on Plutella xylostella and Spodoptera litura with sensitive and field populations was determined. The results showed that P. xylostella had medium level resistance, but S. litura had higher sensitivity, and didn＇t show significant resistance. Field trials by different doses of 10% eyantraniliprole SC, 15% indoxacard SC and 24% chlorfenapyr SC indicated that the cyantraniliprole 1 500 times had the best control effect （91.49%） on P.xylostella. Its 1 500 and 2 000 times had the best control effect（above 90%） on S.litura, Cyantraniliprole was the preferred insecticide on S.litura, but should be limited on P. xylostella.
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