摘要
敏感小菜蛾Plutellaxylostella (L .)经苦皮藤素 2 0代的抗性选育 ,其抗性增长 2 1 5 7倍。选育的小菜蛾抗性品系对杀虫双、杀螟丹和叶蝉散分别有 4 6 3、 4 11和 3 71倍的交互抗性 ;对溴氰菊酯、氯菊酯、氯氰菊酯分别有 0 2 2、 0 0 1和 0 2 6倍的负交互抗性。高抗杀螟丹、杀虫双小菜蛾品系对苦皮藤素无明显交互抗性 ,而高抗溴氰菊酯小菜蛾品系对苦皮藤素有3 6 1倍的交互抗性。
After artificial selection for resistance to 0 .2% celangulin EC for 20 generations, resistance of the diamond back moth, Plutella xylostella (L.) fourth instar larvae to this pesticide increased 21 .6-fold. The development of resistance was slow initially, faster in the mid stage, and stable in the later stage. The celangulin resistant strain had positive cross resistance to dimehypo, cartap and isoprocarb (R/S was 4 .63, 4 .11 and 3 .71 respectively), and negative cross resistance to deltamethrin, cypermethrin and permecthrin (R/S was 0 .22, 0 .26 and 0 .01 respectively). The cartap-, dimehypo- and deltamethrin-resistant strains had 1 .06-, 1 .76- and 3 .61-fold resistance to 0 .2% celangulin EC, respectively.
出处
《昆虫学报》
CAS
CSCD
北大核心
2003年第1期18-21,共4页
Acta Entomologica Sinica
关键词
小菜蛾
苦皮藤素
抗药性
Plutella xylostella
celangulin
insecticide resistance
