摘要
枫杨白粉病的发生发展和生态环境有密切关系，杭州地区的枫杨白粉病不能侵染胡桃树，而对桑树虽能侵染但会促使病原菌在无性及有性阶段发生形态变异。越冬后，子囊孢子飞散是在3月至9月。由于微寄生物的存在而使子囊和子囊孢子数量减少。经初步鉴定明确此做生物系一种Cladosporium（芽技孢）属的真菌。此外，杭州华家池枫杨白粉病菌已出现变异现象，这和微生态环境也有关系。
The occurrence and development of powdery mildew of Pterocarya stenoptera has close relation with the ecological environment. The fungi of powdery mildew of P stheoptera could not infect to Jtglerdis regta in Hangzhou district, yet it could infect Morus dea and caused morphological variance in its conidium stage and perithecium, ascus and ascospore stage.overwintered ascospore began to disperse from March to September. But the quantity of ascus and ascospore was decreased owing to be infected by the mycoparasite - Cbosporler sp.boides, the fungi of powder mildew of P taoptera in Hangzhou district appeared variant caused by mico - ecological environment.
出处
《浙江林业科技》
北大核心
1997年第3期10-15,25,共7页
Journal of Zhejiang Forestry Science and Technology
关键词
白粉病
枫杨
微寄生物
病菌变异
powdery mildew
Pterocaryu stenoptera
mycoparasite
variation of fungi
