贵州玉米田昆虫群落组成及优势种种群动态研究  

Structure of Insect Communities and Population Dynamic of Dominant Species in Corn Fields in Guizhou

作　　者：杨昌利 刘芳 苏丽 朱德远 张长禹 YANG Chang-li;LIU Fang;SU Li(Institute of Entomology, Guizhou University,Guizhou Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region,Guiyang,Guizhou 550025)

机构地区：[1]贵州大学昆虫研究所贵州省山地农业病虫害重点实验室,贵州贵阳550025 [2]贵州工商职业学院,贵州贵阳551400

出　　处：《安徽农业科学》2019年第6期136-139,152,共5页Journal of Anhui Agricultural Sciences

基　　金：国家重点研发计划项目(2017YFD0200900);贵州省农业科技公关项目"玉米螟绿色防控关键技术研究与示范"(黔科合NY字[2012]3007号);国家自然科学基金项目(31407154)

摘　　要：[目的]研究贵州玉米田昆虫群落组成及优势种种群动态。[方法]通过对贵州花溪玉米田昆虫群落的系统调查,研究贵州玉米田昆虫群落组成及优势种种群动态。[结果]共发现昆虫纲10目21科46种昆虫;主要类群为同翅目、鞘翅目、鳞翅目、膜翅目、直翅目和半翅目,数量占比达98.63%。昆虫群落的物种丰富度在7月中旬最高,达24种;主要优势种有亚洲玉米螟、玉米蚜和双斑长附萤叶甲,以及天敌昆虫龟纹瓢虫、异色瓢虫和二星瓢虫;其中,龟纹瓢虫对玉米蚜有明显的跟随效应。[结论]该研究阐明了贵州玉米田昆虫群落组成及优势种种群动态特征,为保护利用天敌、控制玉米害虫提供理论依据。[Objective] To study structure of insect communities and population dynamic of dominant species in corn fields in Guizhou.[Method]Insect communities in corn fields in Guizhou Province were investigated systematically,structure of insect communities and population dynamic of dominant species in corn fields in Guizhou was studied.[Result] A diverse community that 46 species, belonging to 10 orders and 21 families was found in the field. Insects in Homoptera, Coleoptera, Lepidoptera, Hymenoptera, Orthoptera and Hemiptera were the main species, and the proportion of individual was 98.63%. The peak of insect community richness appeared in mid-July, and 24 species were found. Rhopalosiphum maidis, Ostrinia furnacalis, Monolepta hieroglyphica and the natural enemies including Propylaea ajaponica, Harmonia axyridis and Adalia bipunctata , were the dominant species in corn fields. Population density dynamic of P. ajaponica changed with R. maidis .[Conclusion] Insect communities and population dynamic of the dominant species in corn fields in Guizhou were clarified, which provided theoretical foundation for protection of natural enemies and control of corn pests.

关 键 词：昆虫群落 玉米田 种群动态 贵州 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]