新疆南部地区棉田捕食性天敌种群动态  

Population dynamics of predatory enemies of cotton field in Southern Xinjiang

作　　者：李进步[1] 吕昭智[1] 袁伟超[2] 刘天池[2] 王登元[2] 

机构地区：[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]新疆农业大学农学院,新疆乌鲁木齐830052

出　　处：《植物保护》2005年第5期50-53,共4页Plant Protection

基　　金：中国科学院资助项目(K2CX2-40404);中国科学院知识创新重大项目(KZCX1-08-01);中国科学前沿领域资助项目(KZCX-XJ02-01)

摘　　要：为开展棉田害虫生态控制,于2004年5～8月系统调查了新疆阿克苏棉区捕食性天敌的种群数量消长动态.结果表明:该地区捕食性天敌种类多数量大,有7目15科28种以上,高峰期天敌虫量平均达到8.86头/株;无干扰情况下能建立稳定的自然种群,对棉田发生的害虫基本上可有效控制;不同天敌田间消长动态存在差异,瓢虫和草蛉为优势种类.In order to implement ecological pest control effectively, the population dynamics of predatory enemies of cotton field were investigated. The results showed that natural enemies not only had a large number of kinds, but also could establish rather stable population in field, which had an effective control on pests. There were 28 species of predators belong- ing to 15 families of 7 classes;during the peak period, the number of enemies could reach 8.86 per plant. Natural population dynamics from various types of enemies were different. Lady beetles and green lacewing were the dominant species of predatory entreties.

关 键 词：有害生物生物防治 捕食性天敌 种群动态 优势种 

分 类 号：S467.2[农业科学—植物保护]