杉梢小卷蛾幼虫空间分布型的研究  

Study on Spatial Distribution Pattern of Polychrosis cunninhamiacola Larvae

作　　者：彭思颖 常明山[2] 陈翠萍 吴耀军[2] 黄华艳[2] 杨振德[1] Peng Siying;Chang Mingshan;Chen Cuiping;Wu Yaojun;Huang Huayan;Yang Zhende(Forestry College of Guangxi University,Nanning,Guangxi 530004,China;Guangxi Forestry Research Institute,Guangxi Engineering Research Center of Natural Enemy Breeding of Forestry Pests,Nanning,Guangxi 530002,China;Nanning Government Service Center,Nanning,Guangxi 530022,China)

机构地区：[1]广西大学林学院,广西南宁530004 [2]广西壮族自治区林业科学研究院广西林业有害生物天敌繁育工程技术研究中心,广西南宁530002 [3]南宁市政务服务中心,广西南宁530022

出　　处：《广西林业科学》2021年第3期355-358,共4页Guangxi Forestry Science

基　　金：广西林业科技项目(桂林科字[2016]第4号);广西创新驱动发展专项资金项目(桂科AA17204087-10)。

摘　　要：杉梢小卷蛾(Polychrosis cunninhamiacola)幼虫是杉木(Cunninghamia lanceolata)的主要食叶害虫之一,对杉木的危害极为严重。为确定杉木人工林中杉梢小卷蛾的空间分布类型,应用扩散系数等6种聚集度指标进行分析,通过杉木的受害状况与幼虫空间分布状况的对比验证,确定该虫在试验区域呈聚集分布,可为杉梢小卷蛾产卵和寄主选择行为的初步预测提供理论基础,为科学防治提供参考。Polychrosis cunninhamiacola larvae are one of main defoliators of Cunninghamia lanceolata,which were extremely harmful for C.lanceolata.In order to confirm spatial distribution pattern of P.cunninhamiacola larvae in C.lanceolata plantation,six kinds of aggregation indicators including diffusion coefficient were used.By comparison validation between damage of C.lanceolata and spatial distribution of P.cunninhamiacola larvae,spatial distribution pattern of P.cunninhamiacola larvae was congregating distribution in test area,which could provide theoretical basis for priliminary prediction of oviposition and host selection of P.cunninhamiacola,and could supply references for scientific prevention and treatment.

关 键 词：空间分布 聚集度指标 杉梢小卷蛾幼虫 

分 类 号：S763.7[农业科学—森林保护学]