烟盲蝽及其天敌蜘蛛空间格局的地统计学分析

利用地统计学的方法研究了烟草(品种为中烟100)不同生长期烟盲蝽及天敌蜘蛛的空间格局,结果表明:烟盲蝽的空间格局随时间的变化呈现为随机、聚集、再随机和再聚集;尽管蜘蛛混合种群的空间格局也依次表现为随机、聚集、随机和聚集分布,但只是在后期与烟盲蝽的空间格局一致。利用BlockKriging进行空间插值分析,得到的三维空间插值模拟图能很好地反映烟盲蝽和蜘蛛种群的田间分布状况。同时,对烟盲蝽及天敌蜘蛛的种群动态进行了分析,发现它们的种群数量变化趋势相似。所有结果表明蜘蛛种群在较大程度上与烟盲蝽种群存在跟随关系。

Geostatistical analysis of spatial patterns of Nesidiocoris tenuis(Reuter) (Hemiptera: Miridae)and its natural enemy spiders

Green tobacco capsid,Nesidiocoris tenuis,is one of the important insect pests on tobacco.It pierces and sucks on the leaves,growing points and buds,which can not only result in pale spots and slow growth,but also transmit some virus diseases.As very important biological agent,spiders such as Hylyphantes graminicola,Misumenops tricuspidatus and Coleosoma octomaculatum can have good control efficiency on the insect pest in tobacco field.This research was carried out to reveal the spatial patterns and populati...