1981年11月,我随吉林农业大学代表团访问美国明尼苏达州时了解到一些果树火疫病(Erwinia amylovora)的情况,以后又查阅了一些文献,深感此病为害严重.虽然斯塔普(C.Stapp)曾记载中国亦有发生,但未见国内有发病报导.近年我国从国外引种逐渐增多,一旦将病菌传入扩散开来,可能 In November 1981, I learned some cases of Erwinia amylovora with a delegation from Jilin Agricultural University visited Minnesota, and later reviewed some literature, which is seriously devastating. Although Staple (C .Stapp) has recorded that China has also occurred, but no domestic incidence reported in recent years, China’s introduction of foreign countries gradually increased, once the spread of germs spread may be