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Position: Home > Articles > Quantitative Indexes of Withered Populus nigra var. thevestina Damaged by Anoplophora glabripennis (Motsch.) Journal of Beijing Forestry University 1999,21 (4) 24-27

光肩星天牛危害导致箭杆杨枯梢的数量指标初探

作  者:
温俊宝;许志春;骆有庆;吴彤;田海燕;罗彦文
单  位:
宁夏青铜峡市林业局;北京林业大学森林资源与环境学院;宁夏;北京
关键词:
光肩星天牛;箭杆杨;枯梢;解剖;数量指标
摘  要:
1996 年8 月底在宁夏对光肩星天牛危害导致枯梢的箭杆杨的解剖结果表明,解剖前调查的各种以危害状反映的天牛表征数量与解剖后的天牛实际数量并不一致.因有空刻槽,解剖前当年新刻槽数大于解剖后卵及初孵幼虫的数量,空槽率为42-7 % ;解剖前当年新排粪孔数因有的天牛幼虫向树体外排粪的表征不甚明显而偏少;当年新羽化孔数解剖前后差别不大.导致箭杆杨枯梢的主要原因是树干上天牛坑道过多且集中,其坑道截面积占树干截面积的10 % 左右,影响了树体向上的水分传导.在水肥条件良好且无其它病虫害的情况下,天牛传入后3 a 即可使箭杆杨枯梢.导致8 年生箭杆杨枯梢时的光肩星天牛危害的主要数量指标为:株平均当年新羽化孔数10 个.
译  名:
Quantitative Indexes of Withered Populus nigra var. thevestina Damaged by Anoplophora glabripennis (Motsch.)
作  者:
Wen Junbao\ Xu Zhichun\ Luo Youqing (College of Forest Resources and Environment, Beijing For. Univ., 100083, P. R. China ) Wu Tong\ Tian Haiyan\ Luo Yanwen (Forestry Administration of Qingtongxia,Ningxia,751600,P.R.China)
关键词:
Anoplophora glabripennis (Motsch.), Populus nigra var. thevestina (Dode) Bean.,spiking top, dissection, quantitative index
摘  要:
Results of dissection of withered P.nigra var. thevestina damaged by A.glabripennis show that the quantitative indexes before the dissection are different from those after. The main reason of spiking top of Lombardy poplar is that there are too many saps of A.glabripennis in the trunk. The main quantitative index of withered P.nigra var. thevestina is 10 eclosion holes of A.glabripennis.

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