杨梅根结线虫病是一种新发现的杨梅病害,病原线虫为爪哇根结线虫(Meloidogynejavanica)、南方根结线虫(M.incognita)和北方根结线虫(M.hapla).爪哇根结线虫为优势种.病害的影响因素有果树品种、种植年限、种植方式和土壤pH值.呋喃丹对病害具有防治效果.调节土壤pH值和用客土改良土壤可以减缓病害和促进果树生长. Myrica rubra is a newly discovered disease of Myrica rubra, the pathogenic nematodes are Meloidogynejavanica, M. incognita and M. hapla. The root-knot nematode The main influencing factors of the disease are fruit trees, planting years, planting methods and soil pH.Fuulide has the control effect on the diseases.Adjusting the pH value of the soil and improving the soil with soil can alleviate the diseases and promote the growth of the fruit trees.