摘要
通过对沈阳地区银杏病害的全面普查和分类鉴定,在银杏树上共发现了13种病害。按病原可分为真菌性和生理性2大病害类别。其中真菌病害11种,是较大的一个类别,生理性病害2种。叶部病害所占比例较大。银杏病害的发生多集中于春、夏两季,高温、高湿条件下发病重,立地条件差或管理粗放病害重。与此同时,该文还提出了病害防控应把握的几个关键环节。
Through overall investigation, classification and appraisal, 13 kinds d diseases were found on Ginkgo biloba in Shenyang areas. 2 sorts of diseases namely fungous and physiological diseases were classified in line with etiology. The fungous diseases were most heavily among all diseases, and physiological diseases had only 2 species. Leaf diseases accounted for most proportion. According to typical symptom of the diseases, 13 kinds of diseases could be classified. The occurrence d different diseases mainly concentrated in spring and summer under high temperature and humidity conditions, and heavily especially for poor site conditions and extensive management. The prevention and control of the diseases should master several key links.
出处
《辽宁林业科技》
北大核心
2006年第2期12-15,42,共5页
Liaoning Forestry Science and Technology
关键词
沈阳地区
银杏
病害种类
防治措施
Shenyang areas
Ginkgo biloba
species of diseases
measures of prevention and control
