| 多杀菌素对小菜蛾及其天敌的毒力研究 |
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| 引用本文： | 徐建祥,乔 静,仲崇翔.多杀菌素对小菜蛾及其天敌的毒力研究[J].中国生态农业学报,2005,13(4):161-163. |
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| 作者姓名： | 徐建祥 乔 静 仲崇翔 |
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| 作者单位： | 扬州大学农学院植物保护系,扬州,225009 |
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| 基金项目： | “十五”江苏省科技攻关项目(BE2001328)资助 |
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| 摘 要： | 研究评价多杀菌素(菜喜)对小菜蛾及其主要天敌的毒力结果表明,菜喜对小菜蛾具有很高的毒力和良好的田间防治效果,菜喜对青翅蚁型隐翅虫和菜蛾绒茧蜂具有直接杀伤作用,其1000倍稀释液24h使菜蛾绒茧蜂死亡率达62.2%,36h死亡率达88.7%,药液直接处理寄生蜂茧或饲喂均导致很高的死亡率,但对拟环纹狼蛛影响较小。多杀菌素对小菜蛾有很好的控制效果,但对小菜蛾天敌,特别是寄生蜂有相当的负面影响。
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| 关 键 词： | 小菜蛾 多杀菌素 毒力 天敌 |
| 收稿时间： | 2004-12-21 |
| 修稿时间： | 2005-01-30 |
Toxicity of spinosad to Plutella xylostella (L.) and its natural enemies |
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| XU Jian-Xiang,QIAO Jing and ZHONG Chong-
Xiang.Toxicity of spinosad to Plutella xylostella (L.) and its natural enemies[J].Chinese Journal of Eco-Agriculture,2005,13(4):161-163. |
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| Authors: | XU Jian-Xiang QIAO Jing and ZHONG Chong-
Xiang |
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| Institution: | Department of Plant Protection, Agricultural College, Yangzhou University, Yangzhou 225009, China |
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| Abstract: | The toxicities of spinosad to Plutella xylostella and its natural enemies are evaluated in this paper. The results show that spinosad has a high toxicity to P. xylostella and a high efficacy against the pest in fields. Spinosad has a lethal effect on Paederus fuscipes and C. plutellae, but no significant effect on Lycosa psedoannulata. For C. plutellae, the treatment with 1000 times dilution of 2.5% CAIXI causes its mortality of 62.2% after 24h and 88.7% after 36h. The side-effects of spinosad on parasitoid of P. xylostella are very high and should be considered when the pesticide is used. |
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| Keywords: | Plutella xylostella Spinosad Toxicity Natural enemy |
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