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Position: Home > Articles > Study on the Spatial Pattern of Citrus Yellow Mite Journal of Mountain Agriculture and Biology 1993 (2) 73-77

柑桔始叶螨空间格局的研究

作  者:
郅军锐;郭振中;熊继文
关键词:
柑桔始叶螨;空间格局
摘  要:
应用聚集度指标研究了柑桔始叶螨种群在埘内的空间格局,结果表明柑桔始叶螨为聚集分布,空间结构为疏松的个体群,个体群的分布是聚集的,个体群内的分布是随机的,柑桔始叶螨在树冠不同部位的螨体强度是有差异的,以中段、内层、东方树冠的聚集强度最大。同时分析了柑桔始叶螨聚集原因。
译  名:
Study on the Spatial Pattern of Citrus Yellow Mite
作  者:
Zhi Junrui; Guo Zhenzhong; Xong diwen (Dept. of plant protection,Guizou Agri. Coll., Guiyang, 550025,China)
关键词:
Citrus yellow mite;;Spatial pattern
摘  要:
The spatial distribution pattern of the citrus yellow mite (Eotetranychus kankitus Ehara)on citrus tree have been studied by means of determining aggregated indices. The results indicated that citrus yellow mite aggregated within the crown of citrus tree. The populations occur in loese colonies ,the pattern of which are aggrerative and the individuals within colonies are randomly distributed. The aggregating intensity of the citrus yellow mite is the largest in the east,middle leaves and inner crown. The reason for aggregation is analyzed with Blackith's aggregating mean(λ).

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