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根据1995年和1997年烟田系统调查资料,得出烟蚜Myzuspersicae(Sulzer)的种群数量动态呈双峰曲线,第一高峰消长阶段烟蚜茧蜂AphidiusgifuensisAshmead和食蚜绒螨Alothrombiumsp.以及第二高峰消长阶段龟纹瓢虫Propylaeajaponica(Thunberg)、中华草蛉ChrysopasinicaTjeder和大灰食蚜蝇MetasyprhuscorolaeFabricius数量波动趋势与烟蚜同步。相关分析、Fuzzy聚类分析和通径分析表明:影响烟田烟蚜种群数量变化的天敌分为:草间小黑蛛Erigonidiumgraminicolum、烟蚜茧蜂和食蚜绒螨以及中华草蛉、龟纹瓢虫、大灰食蚜蝇和小花蝽QriusminutusL.三个功能类群,其中烟蚜茧蜂与中华草蛉和龟纹瓢虫分别是控制烟蚜第一、第二高峰消长阶段种群数量增长的优势种群。
According to the data of tobacco field system in 1995 and 1997, the population dynamics of Myzus persicae (Sulzer) showed a bimodal curve, Aphidiusgifuensis Ashmead and Alothrombium sp. In the first peak period. And Propylaeajaponica (Thunberg), Chrysopasinica Tjeder and Metasyprhus coronella Fabricius in the second peak-growth stage were synchronized with those of the control. Correlation analysis, Fuzzy clustering analysis and path analysis showed that the natural enemies that affected the population change of Myzus persicae were divided into two groups: Erigonidium graminicolum, Aphidium aphid and Aphis gossypii; , Greyhound beetle and Qrius minutus L. Three functional groups, of which tobacco aphid Brachionus pochaemon and Chinese ladybug and ladybug beetle are the dominant populations that control the population growth of the first and second peaks of the tobacco aphids respectively.