| 玉米田蚜虫种群的空间动态 |
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| 引用本文： | 白树雄,张聪,闫占峰,何康来,王振营.玉米田蚜虫种群的空间动态[J].昆虫知识,2014(3):661-667. |
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| 作者姓名： | 白树雄 张聪 闫占峰 何康来 王振营 |
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| 作者单位： | 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 |
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| 基金项目： | 现代农业产业技术体系建设专项（CARS-02） |
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| 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。
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| 关 键 词： | 玉米蚜虫 玉米 空间分布型 聚集指标 |
Spatial dynamics of aphids in corn fields |
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| BAI Shu-Xiong ZHANG Cong,YAN Zhan-Feng HE Kang-Lai WANG Zhen-Ying.Spatial dynamics of aphids in corn fields[J].Entomological Knowledge,2014(3):661-667. |
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| Authors: | BAI Shu-Xiong ZHANG Cong YAN Zhan-Feng HE Kang-Lai WANG Zhen-Ying |
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| Institution: | (State Key Laboratory for the Biology of the Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China) |
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| Abstract: | 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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| Keywords: | corn aphids maize spatial distribution pattern aggregation indices |
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