| 豇豆荚螟对阿维菌素的敏感性分析 |
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| 引用本文： | 张永丽,李戈,莫圣书,陈青. 豇豆荚螟对阿维菌素的敏感性分析[J]. 农药, 2007, 46(6): 413-415 |
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| 作者姓名： | 张永丽 李戈 莫圣书 陈青 |
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| 作者单位： | 中国热带农业科学院热带生物技术研究所,海口,571101;中国热带农业科学院环境与植物保护研究所,海南,儋州,571737 |
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| 基金项目： | 中国热带农业科学院科研基金 |
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| 摘 要： | 采用浸渍法和分光光度法进行了豇豆荚螟对阿维菌素的敏感性分析。结果表明,不同种群豇豆荚螟对阿维菌素的敏感性存在明显差异。从两院豇豆荚螟种群对阿维菌素的LC50抗性比值可以看出,定安和东方豇豆荚螟种群对阿维菌素的抗药性分别提高3.5701倍和2.8650倍;羧酸酯酶活性测定结果表明,用阿维菌素18、9、4.5、3、0.225mg/kg处理豇豆荚螟后,各处理豇豆荚螟的羧酸酯酶活性均明显增强。上述结果表明,豇豆荚螟种群对阿维菌素的敏感性降低主要是由于羧酸酯酶活性显著增强所致。
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| 关 键 词： | 豇豆荚螟 阿维菌素 羧酸酯酶 敏感性 |
| 文章编号： | 1006-0413（2007）06-0413-03 |
| 修稿时间： | 2006-11-182007-02-10 |
Analysis of the Susceptibility of Maruca testutalis Geyer to Abamectin |
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| ZHANG Yong-li,LI Ge,MO Sheng-shu,CHENG Qing. Analysis of the Susceptibility of Maruca testutalis Geyer to Abamectin[J]. Pesticides, 2007, 46(6): 413-415 |
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| Authors: | ZHANG Yong-li LI Ge MO Sheng-shu CHENG Qing |
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| Affiliation: | 1.Institute of Tropical B ioscence and Biotechnology, Haikou 571101, China; 2.Environment and Plant Protection Institute of Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, Hainan, China |
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| Abstract: | The susceptibility of Maruca testutalis Geyer to abamectin was studied by leaf immersion method and spectrophotometry. The results showed that Maruca testutalis in different areas had different susceptibility to abamectin; the resistance of Maruca testutalis increased 3.5701-fold in Dingan and 2.8650-fold Dongfang based on the results of the LCs0 of Maruca testutalis in Liangyuan LCs0, the bioassay of carboxylesterase indicated that carboxylesterase activity in Maruca testutalis significantly increased after treated by abamectin 18, 9, 4.5, 3, 0.225 mg/kg. The results above all showed that the susceptibility of Maruca testutalis to abamectin declined mainly because of carboxylesterase activity in Maruca testutalis significant increase. |
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| Keywords: | Maruca testutalis Geyer abamectin carboxylesterase susceptibility |
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