单 位：
新疆维吾尔自治区额敏县林业局;河北大学生命科学学院
摘 要：
山杨楔天牛(Saperda carcharias)在新疆额敏县主要为害杨树,2年发生1代。对山杨楔天牛在额敏县的生活史及为害情况进行了调查,研究了山杨楔天牛的为害程度与受害树冠幅的关系,以及山杨楔天牛在树干上的垂直分布与水平分布规律。结果表明,山杨楔天牛在额敏县主要为害山杨、北京杨和苦杨,树木受害率达85%以上。生长季节可见山杨楔天牛的不同虫态,世代交替现象明显。山杨楔天牛在受害树上的株虫孔数量与树冠的垂直投影面积呈二次曲线关系。在寄主树上主要分布于树干下部0～3m的范围内,在树干不同水平方向上的分布差异不明显。初步提出了山杨楔天牛的防治策略。
译 名：
Occurrence and damage of Saperda carcharias in Emin County of Xinjiang Uygur Autonomous Region
作 者：
Hamiti1,Bahaiti·Jumahan1,Wei Jianrong2(1.Forest Bureau of Emin County,Xinjiang Uygur Autonomous Region,Emin 834600,China; 2.College of Life Sciences,Hebei University,Baoding 071002,China)
关键词：
Saperda carcharias;wood borer;life cycle
摘 要：
Saperda carcharias(Linnaeus)(Coleoptera: Cerambycidae) is a serious wood borer attacking poplar trees in Emin County,Xinjiang Uygur Autonomous Region,China.It takes two years to complete one generation.The life cycle and occurrence of S.carcharias in Emin County,the relationships between numbers of S.carcharias per tree and tree-crown,vertical and horizontal distribution regularity of S.carcharias on the tree trunk,were investigated during the year 2010 and 2011.The results showed that Populus davidiana Dode,Populus×beijingensis W.Y.Hsu,and Populus laurifolia Ledeb.were seriously damaged by S.carcharias,and the infestation rates were over 85%.Different development stages of S.carcharias were found during the growing season,and different generations were co-occurred in the same year.The relationships between the number of S.carcharias per tree and projected area of host tree-crown complied with the quadratic curve.S.carcharias mainly attacked the lower parts of the tree trunks from 0 to 3 meters high above the ground.There was no significant difference in infestation rates between different horizontal directions.Control strategies of S.carcharias were presented in the discussion.
