细菌性软腐病是金线莲栽培中发生的主要病害之一，其病原菌通常为软腐欧文氏菌黑茎病变种Eruinia carotovora var. atroseptica。我......

Bleeding canker, a devastating disease of pear trees (Pyrus pyrifolia L.), was first reported in the 1970s in Jiangsu, C......