黑胫病是严重危害马铃薯茎、块茎和根的一种病害,整个营养生长期内都可在茎上出现,从出苗后不久就开始,到开花时达最高峰,以后扩展较慢,仅少数茎受害,而植株能继续生长,到营养生长的后半期就为害块茎。块茎感染通常始于脐端,在那里形成一腐烂的小坑。作者认为,栽培免疫品种对防治黑胫病有很大作用;但是在不同的气候区各品种对 Black shank disease is a serious hazard to potato stems, tubers and roots of a disease, the entire vegetative period can appear in the stem, from the beginning of emergence soon after flowering reached the peak, after the slow expansion, only a few Stems suffer, while plants can continue to grow, to the latter half of vegetative growth damage tubers. Tuberous infections usually start at the umbilicus, where a decaying pit forms. The author believes that the cultivation of immune species on the prevention and treatment of shank has a great role; but in different climatic zones of all varieties of