198 7年在云南水富县进行根结线虫病害调查时 ,发现部分田块君达菜受到根结线虫的危害 ,受害植株根部形成串珠状根结 ,根结表面光滑无须根 ,雌虫产卵后 ,根表皮不破裂 ,卵包在根结内。从病根中分离到的根结线虫会阴花纹呈现与其他常见根结线虫不同的特殊形状 ,但酯酶同工酶图谱 198 7 years in Shuifu County, Yunnan root knot nematode disease survey found that some of the block Junda vegetables are root-knot nematode hazards, the root of beaten plants formed beaded root knot, the root knot surface smooth without roots, females lay eggs After the root epidermis is not broken, eggs in the root knot. The root knot nematode perineal pattern isolated from the diseased root showed a special shape different from other common root knot nematodes, but the esterase isozyme pattern