7种农药对瓜蚜的室内毒力测定  

Toxicities of Seven Types of Pesticide to the Melon Aphid Aphis gossypii

作　　者：宫亚军[1] 石宝才[1] 康总江[1] 王泽华[1] 朱亮[1] 魏书军[1] 

机构地区：[1]北京市农林科学院植物保护环境保护研究所,北京100097

出　　处：《农药》2012年第4期296-297,311,共3页Agrochemicals

基　　金：国家重点基础研究发展计划(2009CB119004);北京市科技计划项目(Z0906050060009017);北京市科技新星计划(2010B027);北京市优秀人才培养资助(2010D002020000010);北京市农林科学院科技创新能力建设专项(KJCX201104009)

摘　　要：[目的]采用浸叶法测定7种药剂对瓜蚜的毒力。[结果]结果表明:阿维菌素活性最高,LC50值为8.2728 mg/L,其次为甲氨基阿维菌素苯甲酸盐,LC50值为23.2278 mg/L,啶虫脒的LC50值为29.2927 mg/L,吡虫啉和毒死蜱的敏感性最低,LC50值分别为46.0487、48.9797 mg/L。螺虫乙酯各测试质量浓度处理后48、72 h时的平均死亡率仅为8.9%、11.2%,高效氯氰菊酯测试质量浓度达2000 mg/L时,24 h校正死亡率仅为37.97%。[结论]7种药剂对瓜蚜的毒力排序为阿维菌素>甲氨基阿维菌素苯甲酸盐>啶虫脒>吡虫啉>毒死蜱>高效氯氰菊酯>螺虫乙酯。[Aims] The toxicities of seven insecticides to melon aphid Aphis gossypii were studied by leaf-dipping method. [Results] The results showed that abamectin had the highest toxicity with LC50 of 8.2728 mg/L, next was the emamectin benzoate with LC50 of 23.2278 mg/L. The LC50 of acetamiprid, imidacloprid and chlorpyrifos were 29.2927, 46.0487 and 48.9797 mg/L respectively. The average mortality was 8.9 and 11.2% under the treatment of spirotetramat after 48 and 72 h. The corrected average mortality was 37.97% under the treatment of beta- cypermethrin with concentration of 2000 mg/L after 24 h. [Conclusions] The toxicity of the seven pesticides to the Aphis gossypii from high to low is abamectin〉emamectin benzoate〉acetamiprid〉imidacloprid〉chlorpyrifos〉betacypermethrin〉spirotetramat.

关 键 词：药剂 瓜蚜 室内生物测定 

分 类 号：S482.3[农业科学—农药学]