玉米田蚜虫种群的空间动态  

Spatial dynamics of aphids in corn fields

作　　者：白树雄[1] 张聪[1] 闫占峰[1] 何康来[1] 王振营[1] 

机构地区：[1]中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京100193

出　　处：《应用昆虫学报》2014年第3期661-667,共7页Chinese Journal of Applied Entomology

基　　金：现代农业产业技术体系建设专项(CARS-02)

摘　　要：【目的】明确我国黄淮海地区玉米蚜虫种类及其空间分布，掌握玉米蚜虫田间发生规律。【方法】采用系统调查法于2009--2010年在河北廊坊对春玉米、夏玉米上玉米蚜虫种群的发生动态进行了研究。【结果】结果表明，该地区取食为害玉米的蚜虫有5种；玉米蚜Rhopalosiphum maidis（Fitch）和禾谷缢管蚜R．padi（L．）混合发生，为玉米田蚜虫的优势种群。【结论】几种蚜虫的混合种群在玉米田间的动态分布始终呈聚集分布；二项分布k和聚集型指标m／x判断表明，随着玉米的生长发育，玉米蚜虫表现扩散-聚集-再扩散-再聚集的趋势。[Objectives] To clarify the species of corn aphids and their spatial dynamics in north China cornfields. [Methods] Systematic investigations of aphid population dynamics and spatial distribution patterns were carried out in cornfields in 2009-2010 in Langfang, Hebei Province. [Results] Five species of aphids occurred in the cornfields; of which Rhopalosiphum maidis （Fitch） and R. padi （L） co-occurred and were the predominant species. [Conclution] Mixed aphid populations generally had an aggregated distribution on the corn plants but the degree of aggregation varied seasonally.

关 键 词：玉米蚜虫 玉米 空间分布型 聚集指标 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]