楸螟在苗田的空间分布型及其应用的研究  

Study on spatial distribution pattern of Omphisa plagialis Wileman in shoot fields and its application

作　　者：张振田 张联中 

机构地区：[1]山东省沂水县林业局,276400

出　　处：《昆虫知识》1995年第1期32-34,共3页Entomological Knowledge

摘　　要：通过调查和计算，明确了楸螟二代幼虫在苗田里聚集型的一般负二项分布。用lwao方法给出了理论抽样数。On the basis of investigation and analysis, the results showed that the distribution pattternof the 2nd gerevation larva of Omphisa plagialis Wileman in shoot fields is Degative binomial servise,theoretical sample size by lwao's method is calculated.

关 键 词：楸螟 空间分布型 理论抽样数 森林害虫 

分 类 号：S763.42[农业科学—森林保护学]