春棉田昆虫群落结构研究  

The Study on Insect Community Structures in Spring Cotton Field

作　　者：吕文彦[1] 秦雪峰[1] 徐艳聆[1] 

机构地区：[1]河南科技学院资源与环境学院,河南新乡453003

出　　处：《河南农业科学》2009年第1期78-80,共3页Journal of Henan Agricultural Sciences

基　　金：农业部农业结构调整重大技术研究专项(06-03-03B)

摘　　要：采用田间调查方法,对棉田昆虫群落结构的研究表明:棉田昆虫群落组成较为丰富,有9目,30科,39种,优势种是棉蚜(Aphis gossypii Glover.)、烟粉虱(Bemisia tabaci Gennadius)、朱砂叶螨[Tetranychus cinnarinus(Bois)]和棉蚜茧蜂(Lysiphlebia japonica)。优势种随时间而变化,6月底至7月上旬优势种为朱砂叶螨,7月上旬优势种为棉蚜茧蜂,7月中旬至8月中旬优势种为棉蚜和烟粉虱。棉田在7月中旬和7月底这2个时期内的优势集中性指数(C)较小,而多样性指数(H′)与均匀度(E)都较大,说明昆虫群落的结构较为合理。The study on insect community structures in spring cotton field shows that the insect community structures in spring cotton fields consists of 9 orders including 30 families with 39 species. The dominant species are Aphis gossypii Glover, Bemisia tabaci Gennadius, Tetranychus cinnarinus and Lysiphlebia japonica. The dominant species changes with time. The dominant species is Tetranychus cinnarinus （Bois） in the end of June and the early 10 day of July. The dominant species is Lysiphlebia japonica in the beginning of July. The dominant species are Aphis gossypii Glover and Bemisia tabaci Gennadius from mid-July to mid-August. In the mid 10-day and the end of July, the ecological concentration is lower, while the diversity and evenness are higher, which indicates that the insect structure is more rational.

关 键 词：春棉 昆虫群落 多样性 

分 类 号：S435.622[农业科学—农业昆虫与害虫防治]