期刊论文

Population density and spatial distribution pattern of Curculio chinensis (Coleoptera:Curculionidae) in Hunan,China

中文

植物保护

0529-1542

2019

45

5

163-170,201

10.16688/j.zwbh.2018379

湖南省自然科学基金（2016JJ2067）；

本校为第一机构

油茶象Curculio chinensis Chevrolat是我国特有木本油料树种--油茶Camellia spp.的专性蛀果害虫,常导致其大量落果。本文旨在明确油茶象幼体(卵+幼虫)种群动态、空间格局及其关键影响因子,以便为调查取样、长期监测和科学防控等提供理论依据。2017年在湖南常宁普通油茶林,2016年-2017年在湖南益阳小果油茶林于雌虫产卵季节进行了调查,解剖收集的果实并记录其所含幼体数。用6种聚集度指标(m*/m、I_δ、C、I、C_a、k)和Taylor幂法则、Iwao回归模型分析油茶象幼体的空间格局,并探讨其关键影响因子。调查和分析表明,雌虫于6月上、中旬开始产卵,幼体种群密度呈单峰变化,2016年和2017年高峰期分别在7...

The camellia weevil,Curculio chinensis Chevrolat,is an important pest attacking fruits of Camellia spp.,an endemic genus in China,and causes fruit drop.To provide theoretical basis for survey sampling,long-term monitoring and scientific prevention and control of the weevil pest,its spatial distribution pattern and population fluctuation were investigated.During the egg-laying season of the weevil,systematic investigations were conducted on the Camellia oleifera farm in Changning city,Hunan province in 2017 and C.meiocarpa farm in Yiyang city,Hu...