刘慧平, 韩巨才, 徐琴, 吕朝军, 刘慧芹. 杀虫剂对苹果黄蚜与七星瓢虫的毒力及选择性研究[J]. 中国生态农业学报(中英文), 2007, 15(2): 126-129.
引用本文: 刘慧平, 韩巨才, 徐琴, 吕朝军, 刘慧芹. 杀虫剂对苹果黄蚜与七星瓢虫的毒力及选择性研究[J]. 中国生态农业学报(中英文), 2007, 15(2): 126-129.
LIU Hui-Ping, HAN Ju-Cai, XU Qin, XU Qin, LU Chao-Jun. Selective toxicity of insecticides between Aphis citricola and Coccinella septempunctala[J]. Chinese Journal of Eco-Agriculture, 2007, 15(2): 126-129.
Citation: LIU Hui-Ping, HAN Ju-Cai, XU Qin, XU Qin, LU Chao-Jun. Selective toxicity of insecticides between Aphis citricola and Coccinella septempunctala[J]. Chinese Journal of Eco-Agriculture, 2007, 15(2): 126-129.

杀虫剂对苹果黄蚜与七星瓢虫的毒力及选择性研究

Selective toxicity of insecticides between Aphis citricola and Coccinella septempunctala

  • 摘要: 采用FAO 推荐的点滴法,测定了15种常用杀虫剂对苹果黄蚜及其天敌七星瓢虫幼虫的毒力,比较了药剂在二者之间的毒力选择性。结果表明,供试杀虫剂中以吡虫啉对七星瓢虫幼虫和苹果黄蚜的选择性最高,其选择性比值(七星瓢虫LD50/苹果黄蚜LD50)为135.56,其次为氟氯氰菊酯、氯氰菊酯和马拉硫磷,其选择性比值分别为114.00、62.86 和45.43。吡虫啉、氟氯氰菊酯、氯氰菊酯和马拉硫磷等选择性高的杀虫剂对苹果黄蚜相对毒力高,而对其天敌七星瓢虫相对安全,在协调苹果黄蚜的化学防治与生物防治策略中应选用对害虫毒力高,而对天敌相对安全的杀虫剂。

     

    Abstract: The selective toxicity of 15 insecticides between Aphis citricola von der Goot and Coccinella septempunctala L.was investigated with a topical application method recommended by FAO.The results show that the selective toxicity of imidacloprid is the highest among 15 insecticides tested, and its selective toxicity ratio(STR, ladybird LD50/aphid LD50)is 135.56. Other insecticides with higher selective toxicity are cyfluthrin, cypermethrin and malathion, of which STRs are 114.00, 62.86 and 45.43, respectivly. Therefore these insectivides,such as imidacloprid, cyfluthrin and malathion, show a higher toxicity to the aphid but safe for the natural enemay ladybird. They coulud be selected as a relatively idael alternative for integrated chemcial and biological control of aphids in the field.

     

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