棉田天敌·蚜虫及室内龟纹瓢虫各虫态历期调查  

Investigation on Natural Enemies,Aphids in Cotton Field and Indoor State of Propylaea japonica( Thunb. )

作　　者：郭传斌 

机构地区：[1]安徽省望江县农业行政执法大队,安徽望江246200

出　　处：《安徽农业科学》2017年第14期139-140,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]明确棉田天敌、蚜虫及室内龟纹瓢虫各虫态历期。[方法]调查棉田天敌、蚜虫发生情况,并观察室内龟纹瓢虫的各虫态历期。[结果]龟纹瓢虫6月在室内常温饲养历期为28.8 d。蚜虫盛期5 d后棉田出现龟纹瓢虫成幼虫盛期。生产实践中宜放宽棉蚜防治指标,以提高龟纹瓢虫的种群数量,控制棉铃虫等主要害虫。[结论]试验结果为龟纹瓢虫的化学防控提供了参考。[ Objective ] The aim was to clear natural enemies, aphids in cotton field and indoor state of Propylaea japonica （ Thunb. ）. [ Method ] We investigated the occurrence of natural enemies and aphids in cotton field, and observed the indoor state of Propylaea japonica （ Thunb. ）. [ Result ] The indoor feeding state of Propylaea japonica （Thunb.） under normal temperature was 28.8 days. There was a peak of Propylaea japonica （Thunb.） adults and larvae in cotton field after five days of aphids stage. So we should relax cotton aphid indexes, and improved the pop- ulation quantity of Propylaeajaponica （Thunb.） to control main insects. [ Conclusion] The results provide reference for the chemical control of Propylaea japonica （Thunb.）.

关 键 词：龟纹瓢虫 棉蚜 虫态历期 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]