Microbial community of phyllosphere bacteria from tobacco Corynespora leaf spot

Tobacco is an important cash crop for the leaf. Tobacco Corynespora leaf spot has been seriously affected in tobacco-growing areas such as Guangxi, Guizhou, Chongqing and Jiangxi provinces in recent years. The pathogenic fungi Corynespora cassiicola have strong variability, intermittent outbreak and epidemic, and are easy to break out into disasters when the environment is suitable, causing irreparable losses. However, there are still few relevant studies on tobacco Corynespora leaf spot.Understanding tobacco Corynespora leaf spot from microecology is the basis of prevention and control.