小菜蛾室内继代饲养技术及抗性选育  

Continuous Rearing Techniques in Laboratory for Diamondback Moth and Toxicity Testing

作　　者：魏娟[1,2] 肖铁光[1] 张友军[2] 

机构地区：[1]湖南农业大学生物安全科技学院,长沙410128 [2]中国农业科学院蔬菜花卉研究所,北京100081

出　　处：《作物研究》2009年第2期129-132,共4页Crop Research

基　　金：湖南省科技计划;编号05NK1004

摘　　要：比较了甘蓝饲养笼法与甘蓝饲养箱法对饲养小菜蛾的差异,结果表明,用甘蓝饲养笼法饲养的小菜蛾种群产卵量高,发育更整齐。同时,用Cry1Ac毒蛋白及Bt制剂对小菜蛾进行了室内抗性选育,获得Cry1Ac毒蛋白抗性倍数为804.60和1 329.00的两个小菜蛾高抗性种群及Bt制剂抗性倍数为74.47的一个小菜蛾中抗性种群。The difference in effect of rearing-cage method and rearing-box method on diamondback moth （Plutella xylostella L. ） was compared. The results showed that the first one was better than the last one. Diamondback moth in the rearing cage had higher fecundity and more orderly development. Three resistant diamondback moth populations with resistance ratios of 804.60 and 1 329.00 folds to CrylAc and 74.47 folds to Bt preparation, respectively, were achieved by the selection with CrylAc toxin and Bt preparation.

关 键 词：小菜蛾 室内继代饲养 毒力测定 

分 类 号：S436.341.24[农业科学—农业昆虫与害虫防治]