| 6种杀虫剂对小菜蛾幼虫的室内毒力活性比较 |
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| 引用本文： | 程东美,何龙凤,张志祥.6种杀虫剂对小菜蛾幼虫的室内毒力活性比较[J].长江蔬菜,2010(2):68-70. |
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| 作者姓名： | 程东美 何龙凤 张志祥 |
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| 作者单位： | 仲恺农业工程学院植保系,广东,广州,510225;华南农业大学农药与化学生物学教育部重点实验室 |
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| 基金项目： | 农药与化学生物学教育部重点实验室项目(药重开04-06);;仲恺农业技术学院项目(G3051215)资助 |
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| 摘 要： | 采用浸叶法测试了虫螨腈、氯虫苯甲酰胺、埃玛菌素、丁醚脲、阿维菌素、氟虫腈6种药剂对小菜蛾3龄幼虫的室内毒力。结果表明，处理后24h，埃玛菌素的毒力最高，丁醚脲的毒力最小，其LC50值分别为22．21mg／L和996．17mg／L：处理后48h，埃玛菌素和氯虫苯甲酰胺的毒力最高，丁醚脲的毒力最小，其L如值分别为13．08mg／L，13．90mg／L和244．57mg／L：处理后72h，氯虫苯甲酰胺和埃玛菌素毒力最高，丁醚脲的毒力最小，其LC50值分别为4．77mg／L．8．59mg／L和135．94mg／L。
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| 关 键 词： | 小菜蛾 杀虫剂 毒力测定 |
Activities of 6 Kinds of Insecticides Against the Larvae of Plutella xylostella |
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| CHENG Dongmei,HE Longfeng,ZHANG Zhixiang.Activities of 6 Kinds of Insecticides Against the Larvae of Plutella xylostella[J].Journal of Changjiang Vegetables,2010(2):68-70. |
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| Authors: | CHENG Dongmei HE Longfeng ZHANG Zhixiang |
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| Institution: | 1.Department of Plant Protection;Zhongkai University of Agriculture and Engineering;Guangzhou 510225;2.Key Lab. of Pesticide and Chemic Biology;Ministry of Education |
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| Abstract: | The toxicities of Chlorfenapyr, Chlorine insects benzamide, Emma streptozotocin, Diafenthiuron, Abamectin and Fipronil to 3 instar larvae of Plutella xylostella were tested by leaf-dipping method. The results indicated that Emma streptozotocin activity was the highest after 24 h with the LC50 of 22.21 mg/L. Diafenthiuron activity was the lowest with the LC50 of 996.17 mg/L. The most toxic insecticides were Emma streptozotocin and Chlorine insects benzamide after 48 h with the LC50 of 13.08 mg/L and 13.90 mg... |
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| Keywords: | Plutella xylostella Insecticides Toxicity test |
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