【摘要】 板栗枝干疙瘩好发于春天， 严重影响幼龄嫁接板栗植株的生长。采用野外调查、病原物分离培养和接种的方法， 查明板栗枝干疙瘩的发生原因有小蠹虫危害、林地排水透气不良以及嫁接口愈合不好等， 以小蠹虫危害最为常见。图１ 参１更多还原

【Abstract】 Swellings on trunks and branches commonly occur in spring and seriously harm growth of grafting plants of Chinese chestnut.Some field investigations and the tests of pathogene culture and inoculation about swellings on rinds of Castanea mollissima indicate that the symptom is caused by poor drainage in forest lands,poor coalescence graft unions and damage of Scolytus which occured most frequently among the three.更多还原