应用罩笼法定量评价天敌对麦蚜的控害作用  

Effect of suppression of natural enemies on wheat aphids using enclosures in wheat fields

作　　者：于汉龙 李林懋[1] 张思聪[1] 于毅[1] 张安盛[1] 李丽莉[1] 周仙红[1] 庄乾营[1] 门兴元[1] 叶保华[2] 

机构地区：[1]山东省农业科学院植物保护研究所,山东省植物病毒学重点实验室,济南250100 [2]山东农业大学植物保护学院,泰安271018

出　　处：《应用昆虫学报》2014年第1期107-113,共7页Chinese Journal of Applied Entomology

基　　金：国家自然科学基金重点项目(31030012);公益性行业项目(201303024)

摘　　要：【目的】定量分析麦田自然天敌对麦蚜的控制作用。【方法】系统调查和罩笼接虫法。【结果】龟纹瓢虫Propylaea japonica Thunberg是麦蚜的主要天敌。在麦蚜发生平稳期、盛发期、消退期,自然天敌对麦蚜有稳定的控制作用,控害指数分别为35%、42%和32%。【结论】在制定麦蚜的防治策略时,应充分考虑自然天敌的控害作用,加强对自然天敌的保护利用。[Objectives] To evaluate the effects of suppressing the natural enemies of wheat aphids. [Methods] Systematic investigation and enclosures. [Results[ The results indicate that Propylaeajaponica Thunberg was the most dominant natural enemy of wheat aphids. Natural enemies could effectively suppress the population of wheat aphids; achieving biocontrol services indices of 35%, 42% and 32% during the aphid population＇s steady period, peak period and decline period, respectively. [Conclusion] The suppression of wheat aphids by natural enemies should be considered as part of the overall wheat aphid control strategy.

关 键 词：麦蚜 自然天敌 龟纹瓢虫 控害指数 

分 类 号：S435.122.2[农业科学—农业昆虫与害虫防治]