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当前位置: 首页 > 文章 > 烯啶虫胺、醚菊酯及其混剂对褐飞虱的毒力测定 南方农业学报 2011,42 (8) 88-91
Position: Home > Articles > Toxicity of nitenpyram, ethofenprox and their mixtures on Nilaparvata lugens Journal of Southern Agriculture 2011,42 (8) 88-91

烯啶虫胺、醚菊酯及其混剂对褐飞虱的毒力测定

作  者：
凌炎;钟勇;韦淑丹;尹文兵;龙丽萍
单  位：
广西大学农学院;广西农业科学院a植物保护研究所;广西农业科学院b水稻研究所
关键词：
烯啶虫胺;醚菊酯;褐飞虱;毒力
摘  要：
【目的】了解烯啶虫胺、醚菊酯单剂及其混剂对褐飞虱3龄若虫的毒力作用,为开发防治褐飞虱的复配制剂提供科学依据。【方法】用稻茎浸渍法测定烯啶虫胺、醚菊酯单剂及其混剂对褐飞虱的毒力效果。【结果】烯啶虫胺、醚菊酯对褐飞虱3龄若虫的LC50分别为0.4922和9.1847mga·i·L-1,两单剂按有效成分质量比为1∶12和1∶27(烯啶虫胺∶醚菊酯)时,共毒系数分别为249.89和138.15。【结论】烯啶虫胺和醚菊酯按有效成分质量比为1∶12和1∶27(烯啶虫胺∶醚菊酯)时有明显的增效作用。
译  名：
Toxicity of nitenpyram, ethofenprox and their mixtures on Nilaparvata lugens
作  者：
LING Yan1a, ZHONG Yong 2, WEI Shu-dan2, YIN Wen-bing 2, LONG Li-ping 1b* (1a Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences; 1b Rice Research Institute, Guangxi Academy of Agricultural Sciences: Nanning 530007, China; 2 Agricultural College, Guangxi University, Nanning 530005, China)
关键词：
nitenpyram; etofenprox; Nilaparvata lugens; toxicity
摘  要：
[Objective]The present experiment was conducted to study the toxic effects of nitenpyram, ethofenprox and their mixtures on Nilaparvata lugens, and to provide scientific basis for developing chemical pesticide for its control. [Method]The toxic effects of nitenpyram, ethofenprox and their mixtures on N. lugens were determined by using rice stem dipping method. [Result]The values of LC50 for nitenpyram, etofenprox on the 3rd nymph of Nilaparvata lugens were recorded as 0.4922 and 9.1847 mg a·i·L-1, respectively. When the efficiency mass ratio of the two single insecticides was 1∶12 and 1∶27 (Nitenpyram∶Etofenprox), the co-toxicity coefficients (CTC) were 249.89 and 138.15, respectively. [Conclusion]The data revealed that combined mixture of two insecticides in the ratioes of 1∶12 and 1∶27 (Nitenpyram∶Etofenprox) gave excellent synergistic effect.

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