攀枝花市凤凰木根病的研究──病原鉴定及其防治初探  

The Preliminary Study on White Root Rot inDelonix regiaRaf

作　　者：伍建榕[1,2] 王海林[1,2] 陈秀虹 杨思远[1,2] 陈英 

机构地区：[1]西南林学院森保系 [2]四川攀枝花市园林处

出　　处：《西南林学院学报》1998年第2期109-113,共5页Journal of Southwest Forestry College

基　　金：攀枝花市科委资助;攀枝花市城乡建设委员会资助

摘　　要：通过对攀枝花市凤凰木根病的野外调查，室内保湿培养、分离培养、镜检等研究，结果表明：攀枝花市凤凰木的致命病害为白纹羽病；其病原为子囊菌亚门的褐座坚壳菌（Ｒｏｓｅｌｉｎｉａｎｅｃａｔｒｉｘ），自然条件下难见其有性和无性孢子，菌丝体及菌索常见；菌索白色，羽纹状分布于根表面，菌核少见．对轻病株环状根施、枝干喷药、加强养护管理可取得较好的防治效果．White root rot in Delonix regiawas a disease found in recent years in Panzhihua City. There was no formal report on the disease so far. The disease was found usually in lateral and fine roots of Delonix regia. The infection of the disease could cause big trees of 10 years or more to fall down when storm passed by, resulting in much trouble to urban traffic. The pathogen of this disease was Rosalinia necatrix. The corridium and ascospore were invisible while hypha and rhizomorph could be seen in natural condition. The rhizomorph was white and feathery and appeared in root surface. The sclerotium was rarely seen. The suggested methods for controlling this disease included spraying bactericide and germicide to rhizosphear and branches, and strengthening tending and management.

关 键 词：白纹羽病 凤凰木 化学防治 根病 病原鉴定 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]