摘要
山核桃Carya cathayensis干腐病是影响山核桃树体生长发育、造成果实减产的最主要病害,在浙江省临安市山核桃产区发生普遍。为了控制病害的发展,减少因病害造成的损失,对临安市山核桃主产区的山核桃林进行了广泛的调查与定株观察。研究发现：该病每年3月下旬始发,至11月下旬以菌丝体在病组织越冬。山核桃干腐病的发生与树龄、郁闭度、结实情况、立地条件、经营水平等因子有关。10~30年生的树木发病最严重,树木郁闭度高,立地条件好,经营水平高的地方发病较轻。
Carya cathayensis canker is a crucial disease which affects the growth and yield of Carya cathayen- sis in Lin＇an City, Zhejiang Province. To effectively control the disease and to reduce losses, extensive in- vestigations and sample observations of the disease were conducted. Results showed that the disease began in late March and ended in late November when the Carya cathayensis pathogen overwintered. Occurrence of the canker was related to tree age with 10-30 year-old trees being severely sick. Also, severity was less with bet- ter site conditions, superior management, and a higher canopy density. [Ch, 1 fig. 4 tab. 10 ref.]
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2013年第1期148-152,共5页
Journal of Zhejiang A&F University
关键词
森林保护学
山核桃
干腐病
发生规律
forest protection
Carya cathayensis
canker
development regularity
