不同植被条件下两种天牛对四合木的危害  

Damage of two species of longcorn beetles on Tetraena mongolica in different vegetations

作　　者：王建伟[1] 苓建强[1] 骆有庆[1] 包会嘎 梁军 

机构地区：[1]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [2]乌海野生动植物保护中心,内蒙古乌海016000

出　　处：《中国森林病虫》2009年第6期9-11,共3页Forest Pest and Disease

基　　金："十一五"国家科技支撑计划项目(2006BAD08A1001);长江学者与创新团队发展计划(PCSIRT0607)

摘　　要：红缘天牛Asias halodendri（Pallas）和槐绿虎天牛Chlorophorus diadema（Motschulsky）是危害四合木的重要天牛。作者调查了两类不同土质及植被组成的样地,全株解剖受害四合木,统计幼虫的危害位置。结果显示,两种植被条件下,植被种类、长势及天牛幼虫对四合木的危害程度不同。其中,在四合木长势好的环境中,害虫危害轻。两种天牛幼虫倾向于危害直径在0.5-1.6 cm之间的四合木枝条,集中分布在地上7 cm以下的枝条内。Asias halodendri（ Pallas ） and Chlorophorus diadema （Motschulsky） were significant pests attacking Tetraena mongolica Maxim. The two pests were studied under two different circumstances with varied vegetation compositions and all the larvae＇ locations were recorded. The results showed that the damage on T. mongolica in the better environment was less severe than that in the worse. The larvae of the two species were tended to attack the stems with diameter between 0.5-1.6 cm and aggregate mainly in the stems at the height below 7 cm.

关 键 词：四合木 红缘天牛 槐绿虎天牛 植被组成 

分 类 号：S763.38[农业科学—森林保护学]