云南三七主产区根结线虫病病原线虫种类鉴定及分布

Identification of Root-knot Nematode Harmful to Panax notoginseng and Its Distribution

根结线虫病是近年来三七生产上的一个主要病害,并有扩展蔓延的趋势,给三七生产造成不同程度的损失。报道了云南三七主产区根结线虫病的发生情况和危害状况,描述了该根结线虫病的危害症状,并根据雌虫、雄虫、二龄幼虫的典型的形态特征和测量值,将危害云南三七的根结线虫鉴定为北方根结线虫(Meloidogyne hapla)。

Root-knot nomoatode is the main disease of Panax notoginseng, has caused a lot of damage to P. notoginseng planting, and is spreading fast in Yunan province. The distribution and the damage caused by this disease were reported, its symptoms were described and according to the morphological characteristics of female, male and the second-stage larva of the nematode, the nematode was identified as Meloidogyne hapla.