冠瘿病ＡｇｒｏｂａｃｔｅｒｉｕｍｔｕｍｅｆａｃｉｅｕｓＣｏｎｎ．对桃形李的危害，使育苗质量下降，甚至失败；幼树生长不良，树势衰弱，早期落叶，推迟结果年限，严重时造成死亡。应实施圃地轮作，造林前检疫，发现根瘤及时切除，并用５Ｂｅ度石硫合剂１００倍液涂伤口 Crown gall disease Agrobacterium tumefacieusConn. The harm to the peach plum, so that the quality of nursery decline, or even failure; poor growth of saplings, tree weakness, early deciduous, postponed the results of years, resulting in serious death. Crop rotation should be implemented nursery, pre-afforestation quarantine and found that timely removal of nodules, and with 5Be degrees lime sulfur mixture 100 times the wound coating