玉米地昆虫及捕食性节肢动物群落结构及动态研究  

Studies on community structure,dynamics of insect and predacious arthropod in corn field

作　　者：侯美珍 [1] 张永强 [2] 王卫光 [1] 

机构地区：[1]广西师范大学生命科学学院,广西,桂林,541004 [2]广西大学农学院,广西,南宁,530005

出　　处：《植物保护》2005年第6期47-52,共6页Plant Protection

基　　金：广西自然科学基金项目(39660304)

摘　　要：南宁市郊玉米地害虫、捕食性昆虫、蜘蛛及中性昆虫由90科315种组成,害虫、蜘蛛及捕食性昆虫是玉米地节肢动物群落组成及功能作用的主要群落。禾谷缢管蚜(Rhopalosiphum padi)、玉米螟(Ostrinia furnacalis)、六斑月瓢虫(Menochilus sexmaculata)、龟纹瓢虫(Propylaea japonica)、食虫沟瘤蛛(Ummeliata insecticeps)、锥腹肖蛸(Tetragnatha maxillosa)、八斑鞘腹蛛(Coleosoma octomaculatum)、类奇异獾蛛(Trochosa ruricoloides)和脉娲蛛(Wadicosa fidelis)等是群落的主体。分析了4个亚群落的时空格局及数量变动规律以及天敌对害虫的控制作用。The community structure, dynamics of insect and predacious arthropod in corn field in Nanning suburbs were studied, The results showed that the pests, predadous arthropods and neutral insect community in corn fidds in the plain areas of Nanning surburbs were composed of 315 species in 90 families. The pests, precladous natural enemies and spiders were the dominant subcommunities in corn fields. Rhopalosiphum rnaidis, Pyrausta machoeralis, Menochilus sexmaculata, Propylaea japonica, Ummeliata insecticeps , Tetragnatha maxillosa, Coleosoma octomaculatum, Trochosa ruricoloides and Wadicosa fidelis were the main components of the community. The temporal and spatial structure of the four subcommunities and their numeral dynamics in early and late corn fields were analyzed in this paper. The coefficient analysis between different subcommunities showed that the predators played an important role in natural natural control of the pests in corn fields.

关 键 词：有害生物生物防治 玉米地生态系统 昆虫群落结构 捕食性节肢动物 

分 类 号：S467.2[农业科学—植物保护]