光滑足距小蠹雌成虫侵入孔的空间分布  

Spatial distribution pattern of the entrance holes excavated by the adult females,Xylosandrus germanus

作　　者：杨群芳[1] 植玉蓉 李庆[1] 张光全[1] 

机构地区：[1]四川农业大学农学院,雅安625014 [2]四川省成都市龙泉驿区植保站,610100

出　　处：《植物保护》2009年第1期42-46,共5页Plant Protection

基　　金：四川省科技厅应用基础项目(2006J13-040)

摘　　要：通过调查雌成虫侵入孔在葡萄树上的分布，测定了光滑足距小蠹[Xylosandrus gerrnanus（Blandford）]雌成虫侵入孔的空间分布型。空间分布型拟合检验、聚集度指标测定、Taylor幂法则和m^＊-m（lwao）回归分析结果均表明，光滑足距小蠹雌成虫侵入孔在葡萄地和葡萄树树体上均呈聚集分布，且都为负二项分布，分布的基本成分均为个体群，个体间相互吸引。雌成虫侵入孔主要分布在葡萄树0～60cm高度的主干上。The spatial distribution pattern of Xylosandrus germanus （Blandford） was studied by investigating the distribution of the female adult entrance holes in grapevine. The fitting test for spatial distribution, analysis of aggregative indexes, the Taylor＇s law and Iwao regression, all showed that the spatial distribution patterns of the entrance holes fitted the negative binomial distribution and belonged to the aggregated pattern both in orchards and inside trees. The basic element for the distribution was clusters of individuals both in orchards and inside trees, and the individuals attracted each other. The entrance holes were mainly distributed in the stem of 0-60 cm in height.

关 键 词：光滑足距小蠹 侵入孔 空间分布型 聚集度 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治]