红脂大小蠹生物生态学特性及防治的研究  

Study on the Biological and Ecological Characteristics of Dendroctonus valens and Its Control

作　　者：赵怀俭 

机构地区：[1]临汾市林业局,山西临汾041000

出　　处：《山西林业科技》2004年第1期16-19,共4页Shanxi Forestry Science and Technology

基　　金：山西省财政支农项目(2000703)

摘　　要：红脂大小蠹是国内新纪录种,为害油松的主干和主侧根,可导致健康油松在短期内大量死亡。该虫主要以成虫和老熟幼虫越冬,一般1年1代,在较寒冷地区、深层主侧根部位发育速率较慢,3年2代或2年1代,世代重叠。在纯林、生长衰弱、郁闭度小的林分中为害较重。营造混交林、加强林木管理、控制虫源、引进并保护和利用天敌是控制红脂大小蠹的有效措施。Dendroctonus valens is a new recorded species in China.It attacks the main stem and root of P.tabulaeformis and causes healthy trees to die in a short time.It passes the winter as adult and full-grown larva.It produces usually one generation in a year.But at the cold temperature,or living in the main root and lateral root in deep soil,Dendroctonus valens grows slowly,only two generations are produced in three years or one generation in two years,life cycle is overlapped.Pured forest,declined forest,and less canopy density forest are attacked easily and gravely by the pests.The pest's controls,such as mixed forest,forest tree management,or introduction and protection of its natural enemy,are effective measures.

关 键 词：红脂大小蠹 生态学特性 综合防治 发生规律 天敌 油松害虫 

分 类 号：S763.712.4[农业科学—森林保护学] S763.38[农业科学—林学]