抗杨干象选种研究初报

• 作 者: 郑荣华 康忠信 林元富 沈清越 单兴斗 范广增
• 机 构: 黑龙江省防护林研究所,黑龙江省防护林研究所,黑龙江省防护林研究所,黑龙江省防护林研究所,林甸县长青林场,林甸县长青林场
• 出 处: 防护林科技
• 发表日期: 1984年00期
• 关键词: 杨干象 杨树造林 树干皮 瘤状 黑龙江省西部 木质部 化学防治 杨树品种 中东杨 小青杨

杨干象(Cryptorrhynchus lapathi L)是黑龙江省西部地区危害杨树干部的主要害虫。幼虫在树干皮层内取食,并蛀入木质部,使侵入孔处膨大成肿瘤状,造成枝干枯朽,以至死亡,丧失或降低被害林木的利用价值,在被害区域内,使杨树造林受到很大威胁。采用化学防治不仅需投入大量人力、物力、且易污染环境,防治后的林木亦生长不良。

Cryptorrhynchus lapathi L is the main pest that endangers poplar cadres in western Heilongjiang Province. The larvae feed on the trunk cortex and erode into the xylem, causing the invasion hole to dilate into a tumorous form, causing the stems to decay, even to death, losing or reducing the utilization value of the damaged trees. In the victimized area, the poplar afforestation is affected Big threat. The use of chemical control not only requires a lot of manpower and material resources, but also easy to pollute the environment. The trees after the prevention and treatment also grow poorly.