| 甘蓝地主要害虫的空间分布研究 |
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| 引用本文： | 黄立飞,杨朗. 甘蓝地主要害虫的空间分布研究[J]. 广西农业科学, 2007, 38(3): 275-278 |
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| 作者姓名： | 黄立飞 杨朗 |
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| 作者单位： | 广西农业科学院植保所,南宁,530007 |
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| 基金项目： | 广西青年基金项目(桂科青06400019) |
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| 摘 要： | 运用5种聚集度指标和2种回归分析方法对甘蓝地3种主要害虫的空间分布型和抽样技术进行研究,结果表明,白粉虱、桃蚜与小菜蛾幼虫在一定密度下均呈聚集分布,分布的基本成分是个体群,且个体间相互吸引;并运用Iw ao'sM*-M回归中的两个参数α和β值确定了不同虫口密度下的最适抽样数模型,为这几种害虫的种群系统研究奠定了良好的基础。
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| 关 键 词： | 甘蓝 害虫 空间分布型 |
| 文章编号： | 1002-8161（2007）03-0275-04 |
| 修稿时间： | 2006-12-29 |
Spatial distribution of three major insect pests in the cabbage fields |
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| HUANG Li-fei,YANG Lang. Spatial distribution of three major insect pests in the cabbage fields[J]. Guangxi Agricultural Sciences, 2007, 38(3): 275-278 |
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| Authors: | HUANG Li-fei YANG Lang |
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| Affiliation: | Plant Protection Research Institute;Guangxi Academy of Agricultural Sciences;Nanning 530007;China |
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| Abstract: | The spatial distribution pattern and sampling technology of three major pests including Bemisia tabaci(Gennadius),Myzus persicae(Sulzer) and Plutella xylostella in the cabbage fields were analyzed with five aggregation indexes and two regression analysis methods such as Taylor's power law and Iwao's distribution function.The results showed that the spatial distribution pattern of the larvae of B.tabaci,M.persicae and P.xylostella was of aggregated,and the basic component of the distribution was individual c... |
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| Keywords: | cabbage insect pest spatial distribution pattern |
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