通过１９８９－１９９１年对广东省烟草主产区的调查，发现广东省烟草侵染性病害３２种。其中真菌病害１８种、粘菌病害１种、细菌病害４种、病毒病害７种、类菌原体病害１种和线虫病害１种；１４种为广东省烟草病害新记录，烟草黑腐病（Ｘａｎｔｈｏｍｏｎａｓｃａｐｅｓｔｒｉｓ）为国内外首次报道的新病害。并对广东省烟草主要病害的发生特点作了描述 Through the survey of major tobacco producing areas in Guangdong Province from 1989 to 1991, 32 species of tobacco-borne diseases in Guangdong Province were found. Including 18 fungal diseases, 1 myxomyosis, 4 bacterial diseases, 7 virus diseases, 1 mycoplasma disease and 1 nematode disease; 14 new records of tobacco diseases in Guangdong Province, black rot of tobacco Xanthomonascapestris) is the first reported new disease at home and abroad. The characteristics of the major tobacco diseases in Guangdong Province were also described