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当前位置: 首页 > 文章 > 氟雷拉纳与4种杀虫剂对斜纹夜蛾的室内毒力及其联合作用 中国农学通报 2020 (9) 113-116
Position: Home > Articles > Toxicity and Joint Action of Fluralaner and Four Insecticides Against Spodoptera litura Fabricius Chinese Agricultural Science Bulletin 2020 (9) 113-116

氟雷拉纳与4种杀虫剂对斜纹夜蛾的室内毒力及其联合作用

作  者：
刘迪;布琼;唐涛;凌汉;赵春青
单  位：
南京农业大学植物保护学院;湖南省农业科学院植物保护研究所
关键词：
杀虫剂;斜纹夜蛾;氟雷拉纳;农药混配;共毒系数
摘  要：
为明确氟雷拉纳对斜纹夜蛾Spodoptera litura Fabricius的毒力及其与毒死蜱、茚虫威、溴氰菊酯、甲氨基阿维菌素苯甲酸盐(简称:甲维盐)复配后的联合作用,筛选出最佳配比,从而为其混剂研发提供科学依据。笔者采用室内人工饲料混毒法,测定了氟雷拉纳与毒死蜱、茚虫威、溴氰菊酯、甲维盐单剂及其混剂对斜纹夜蛾三龄幼虫的毒力,并通过共毒系数法评价复配药剂的联合作用。单剂结果表明:氟雷拉纳、溴氰菊酯和甲维盐对斜纹夜蛾具有高毒力,药后48 h的LC_(50)值分别为0.48、0.65、0.38 mg/kg;毒死蜱和茚虫威对斜纹夜蛾的毒力中等,药后的LC_(50)值分别为8.71、3.08 mg/kg。混配结果表明:氟雷拉纳与毒死蜱混配具有良好的增效作用,且配比为3:2时,共毒系数最高为164.2;与茚虫威混配时,具有相加作用;而与溴氰菊酯或甲维盐混配时,却均表现为拮抗作用。总之,本研究为氟雷拉纳的增效混剂研发提供了科学依据;而因其与溴氰菊酯或甲维盐混配存在拮抗作用,应避免用于混剂研发。
译  名：
Toxicity and Joint Action of Fluralaner and Four Insecticides Against Spodoptera litura Fabricius
作  者：
Liu Di;Bu Qiong;Tang Tao;Ling Han;Zhao Chunqing;College of Plant Protection, Nanjing Agricultural University;Institute of Plant Protection, Hunan Academy of Agricultural Sciences;
关键词：
insecticide;;Spodoptera litura F.;;fluralaner;;insecticide mixture;;co-toxicity coefficient
摘  要：
To identify the toxicity of fluralaner and its joint action with four traditional insecticides(chlorpyrifos, indoxacarb, deltamethrin and emamectin benzoate) to Spodoptera litura F. and explore the optimum ratio of insecticides, the 3 rd instar larvae of S. litura and artificial food mixing insecticides were used in the study, the toxicity was measured and the joint action was evaluated by co-toxicity coefficient. The results of single dosage showed that fluralaner, deltamethrin and emamectin benzoate exhibited high activity with LC_(50) values of 0.48, 0.65 and 0.38 mg/kg at 48 h, respectively. Meanwhile, chlorpyrifos and indoxacarb exhibited moderate activity to S. litura with LC_(50) values of 8.71 and 3.08 mg/kg, respectively. The results of joint action showed that fluralaner mixing with chlorpyrifos at 3:2, the mixture showed the highest synergistic effect with co-toxicity coefficient(CTC) as 164.2, the mixture with indoxacarb showed additive effect, the mixture with deltamethrin or emamectin benzoate showed antagonistic effect. In conclusion, these results demonstrate that fluralaner and chlorpyrifos could be considered as effective insecticidal mixture to be used for control of S. litura. On the contrary, the fluralaner and deltamethrin or emamectin benzoate should avoid combined application due to their antagonism.

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