首次报道在云南文山地区发现三七根结线虫病。病苗具有大小不等、表面光滑的球形根结 ,雌成虫会阴花纹呈近圆形的六边形或稍扁平的卵圆形 ,有的花纹侧线处线纹向外延伸呈“翼” ,尾端区刻点明显。同时作了酯酶和苹果酸脱氢酶电泳分析 ,前者谱带为Ｈ 1型 ,Ｒｆ :0 .5;后者谱带为 First reported in Yunnan Wenshan found Panax root knot nematode. The diseased seedlings have spherical root knot with smooth surface. Female perineal perineal pattern is nearly round hexagonal or slightly flattened oval, and some lines extend outward at the lateral line of “wing” and tail End zone marked point. At the same time made esterase and malate dehydrogenase electrophoresis analysis, the former for the H 1 type band, Rf: 0 .5; The latter band