荔枝龟背天牛幼虫空间分布型研究  

SPATIAL DISTRIBUTION PATTERN AND SAMPLING TECHNIQUE OF ARISTOBIA TESTUDO (COLEOPTERA:CERAMBYCIDAE) IN LICHI ORCHARDS

作　　者：韩日畴[1] 徐洁莲[1] 曹莉[1] 刘秀玲[1] 

机构地区：[1]广东省昆虫研究所,广州510260

出　　处：《昆虫天敌》1994年第4期175-182,共8页Natural Enemies of Insects

基　　金：广东省青年科学基金资助项目

摘　　要：对荔枝龟背天牛幼虫于荔枝园中的空间分布状况调查和分析,表明该虫的空间分布为负二项分布;空间图式是聚集型;分布的基本成分为疏松的个体群。聚集行为受环境因素(主要是荔枝品种)的影响。此外,利用分布型参数确定了龟背天牛的理论抽样数并建立了序贯抽样检定表。Various methods were used to determine the spatial distribution patterns of Aristobia testudo larvae in lichi orchards. The . results showed that the spatial distribution of the larvae conformed to negative binomial distribution and the spatial pattern was aggregative. Basic distribution component of population distribution was loose individual groups. The cause of aggregative distribution seemed to be due to some environmental factors such as the strains of lichi. The theoretical sampling numbers were estimated in different population densities with different estimated errors and confidence limits. Iwao's sequential sampling was established with Iwao's regression equation.

关 键 词：昆虫病原线虫 荔枝龟背天牛 空间分布型 幼虫 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治] S476.15[农业科学—植物保护]