安徽农业科学2011，Vol.39Issue(17)：10310-10311,2.
2种生物农药对菜青虫的控制作用及对天敌的影响
Effects of Two Biological Insecticides on Pieris rapae and Its Natural Enemies
高曙晖1
作者信息
- 1. 安徽省繁昌县农业技术推广中心,安徽,繁昌,241200
- 折叠
摘要
Abstract
[ Objective ] The effects of Bt and avermectin on population dynamics of Pieris rapae, the characteristic indices of predatory enemy communities and the ratio of nature enemies to Pieris rapae in cabbage fields were studied. ［ Method] Medicine treatment and systematical investigation were adopted. ［ Result] Avermectin had evident control effect on population growth of Pieris rapae, but the control effect of Bt on Pieris rapae wasn't ideal. Bt and avermectin treatments had obvious negative effects on species richness and number of individuals of predatory enemy communities, but had no evident effects on the ratio of natural enemies to Pieris papae in the period of peak occurrence of Pieris rapae.[ Conclusion] Bt and avermectin treatments could protect the natural control effects of natural enemies on Pieris rapae.关键词
Bt/阿维菌素/菜青虫/天敌Key words
Bt/ Avermectin/ Pieris rapae/ Natural enemy分类
农业科技引用本文复制引用
高曙晖..2种生物农药对菜青虫的控制作用及对天敌的影响[J].安徽农业科学,2011,39(17):10310-10311,2.
