云斑天牛对永善县核桃危害程度分析  

Analysis of the Damage of Batocera horsfieldi Hope in Yongshan County

作　　者：胡光辉[1] 闫争亮[1] 段兆尧[1] 彭明俊[1] 郑畹[1] HU Guang-hui;YAN Zheng-liang;DUAN Zhao-yao;PENG Ming-jun;ZHENG Wan(Yunnan Academy of Forestry,KunmingYunnan 650201,P.R.China)

机构地区：[1]云南省林业科学院,云南昆明650201

出　　处：《西部林业科学》2018年第5期104-107,共4页Journal of West China Forestry Science

基　　金：云南省林业厅"核桃良种扩繁技术"科技推广项目

摘　　要：为了掌握云斑天牛对永善县核桃的危害程度,采用随机抽样的方法,按不同方位(东、南、西、北)、不同树龄及不同垂直高度等因子对云斑天牛产卵刻槽数量进行调查。结果表明,核桃林云斑天牛有虫株率50. 00%,每株平均产量17. 16粒,最高达74粒/株。1-6年生核桃幼树上无云斑天牛产卵刻槽,云斑天牛主要危害10-30年生核桃,82. 5%产卵量集中在距地面0-2. 0m的范围内,但云斑天牛在树干上产卵没有方向的偏爱。根据其产卵习性,可采用树干基部涂白,人工敲击产卵痕的方法进行防治。In order to find the damage degree of Batocera horsfieldi(Hope)to walnut in Yongshan county,we investigated the number of oviposition site according to different positions,different tree ages and various perpendicular heights using the method of random sampling.The results showed that the rate of plant with insect of B.horsfieldi in walnut forest was 50.00%,the average yield was 17.16 to a maximum of 74 per plant.The 1 to 6 years old plant have no oviposition site,however,B.horsfieldi mainly hazards 10 to 30 years old plant.82.5%of oviposition amount concentrated in area 0-2.0m off the ground.It is noteworthy that B.horsfieldi has no preference in oviposition site.According to oviposition characteristic,measures such as white paint,manual cleanup can be used to prevent B.horsfieldi.

关 键 词：云斑天牛 产卵刻槽 核桃 分布规律 永善县 

分 类 号：S763[农业科学—森林保护学]