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Position: Home > Articles > Spatial dynamics of aphids in corn fields Chinese Journal of Applied Entomology 2014 (3) 67-73

玉米田蚜虫种群的空间动态

作  者:
白树雄;张聪;闫占峰;何康来;王振营
单  位:
植物病虫害生物学国家重点实验室;中国农业科学院植物保护研究所
关键词:
玉米蚜虫;玉米;空间分布型;聚集指标
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。
译  名:
Spatial dynamics of aphids in corn fields
作  者:
BAI Shu-Xiong;ZHANG Cong;YAN Zhan-Feng;HE Kang-Lai;WANG Zhen-Ying;State Key Laboratory for the Biology of the Plant Diseases and Insect Pests,Institute of Plant Protection,Chinese Academy of Agricultural Sciences;
关键词:
corn aphids;;maize;;spatial distribution pattern;;aggregation indices
摘  要:
[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.

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