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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 maple powdery mildew is closely related to the ecological environment. The powdery milletia maple of Hangzhou can not infect walnut trees, while the mulberry trees can infect but cause the morphological variation of the pathogenic bacteria during the sexual and sexual phases. After overwintering, ascospores scattered in the March to September. The number of ascus and ascospores is reduced due to the presence of micro-parasites. The initial identification of clear biological system to do this is a Cladosporium genus fungi. In addition, Hangzhou China Maple Poplar powdery mildew has emerged mutation phenomenon, which is also related to the micro-ecological environment.