不同水生蔬菜对斜纹夜蛾药剂敏感性的影响

Effects of Feeding Different Aquatic Vegetables on Sensitivity to Insecticides of Spodoptera litura(Lepidoptera:Noctuidae)

采用浸叶法测定了取食不同水生蔬菜的斜纹夜蛾对5种药剂的敏感性,对取食不同水生蔬菜的斜纹夜蛾幼虫进行了解毒酶活性测定。结果表明:取食莲藕、芋、水芹、人工饲料的斜纹夜蛾幼虫对氟啶脲(chlorfluazuron)、毒死蜱(chlorpyrifos)、茚虫威(indoxacarb)、溴虫腈(chlorfenapyr)和甲维盐(emamectin-benzoate)的敏感性不同,取食不同水生蔬菜的斜纹夜蛾幼虫解毒酶活性有差异,羧酸酯酶活性依次为莲藕>人工饲料>水芹>芋,乙酰胆碱酯酶活性依次为芋>人工饲料>莲藕>水芹,谷胱甘肽-S-转移酶活性依次为为人工饲料>水芹>莲藕>芋,多功能氧化酶活性依次为水芹>芋>莲藕>人工饲料,解毒酶活性提高与取食不同水生蔬菜的斜纹夜蛾幼虫对药剂产生的敏感性差异有关。

In order to test Spodoptera litura fed by different aquatic vegetables on sensitivity of 5 different insecticides,the activity of detoxifying enzymes was assayed by leaf dipping method.The results indicated that the sensitivities of S.litura to chlorfluazuron,chlorpyrifos,indoxacarb,chlorfenapyr and emamectin-benzoate were different when feeding on different aquatic vegetables.Activity of detoxifcation enzymes of S.litura was different when feeding on different aquatic vegetables,and sequence of the activit...