摘要
文章简要报道了松幽天牛Asemum amurenseKraatz在河北丰宁的发生和危害状况,讨论了该虫成灾的主要原因,并提出防治建议和对策。该虫在河北丰宁造成的灾害十分严重,主要危害油松,成灾区有虫株率50%以上,虫口密度126头/株;造成严重危害的主要原因是油松生存环境恶劣,连续干旱,对该虫生物生态学特性缺乏了解以及缺少有效监控技术。
The occurrence and damage of Asemum amurense in Fengning County, Hebei Province were briefly discussed and the control advices were given. A. amurense caused great damage on Pinus tabulaeformis. The attack rate of the pest was over 50% and the population density was about 126 insects per tree. Poor site condition, continuous drought and the lack of the knowledge about the insect＇s biological and ecological characters and monitoring techniques account for the serious damage.
出处
《中国森林病虫》
北大核心
2006年第4期15-18,共4页
Forest Pest and Disease
关键词
松幽天牛
油松
有虫株率
虫口密度
Asemum amurense
Pinus tabulaeformis
attack rate
population density
