摘要
采用生物测定法，比较了斜纹夜蛾ＮＰＶ对取食芋叶等７科８种蔬菜的斜纹夜蛾幼虫的毒力反应差异性。结果表明ＮＰＶ对取食番茄叶的幼虫毒力最高，比取食芋叶的毒力高６．８２倍；但再经菜心饲养一代后，ＮＰＶ的毒力差异消失。
Toxicity difference of cotton leafworm NPV to larvae of cotton leaf worm feeding on & vegetables of 7 families has been studied through bioassay. The results indicate that the toxicity difference is remarkable, and the LC_50 to the larvae feeding on tomato leaf is 6. 82 times higher than to the larvae feeding on taro leaf. But the toxicity difference disappeares when larvae feeding on Chinese flowering cabbage in next generation.
出处
《昆虫知识》
CSCD
1999年第3期164-166,共3页
Entomological Knowledge
关键词
NPV
斜纹夜蛾
毒力差异
NPV, Prodenia litura Fabricius, toxicity difference.
