山西、河北首次发现杏树腐烂病１９９３年７月，笔者应邀到河北省蔚县考察诊断仁用杏死树原因。该县常宁乡司街村一个１７年生仁用杏树园，在开花展叶时病树逐渐枯死，死株率约有４％。宋家在一个６～７年生仁用杏树园也有个别病株。１９９４年５月山西广灵县加斗乡的５年... Shanxi, Hebei first discovered apricot tree rot disease In 1993 July, I was invited to Yuxian County, Hebei Province, the diagnosis of apricot dead tree causes. The county Changning Township Secretary Street, a 17-year-old kernel of apricot orchard, in the flowering and leaves gradually diseased trees, dead strains of about 4%. Song family in a 6-7 year-old with almond trees also have individual diseased plants. 1994 May Guangling County, Shanxi Jia Douxiang 5 years ...