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此病是牡丹的重要病害 ,在山东菏泽牡丹栽培区均有分布。根据雌虫会阴花纹特征、酯酶同功酶谱和北卡罗来纳鉴别寄主试验鉴定为北方根结线虫 (MeloidogynehalplaChitwood)。以雌虫和卵在牡丹根部越冬 ,1a重复侵染 3次 ,完成其生活史。 15%铁灭克和 4 0 %甲基异柳磷防治效果达 93 1%
The disease is an important peony disease, peony cultivation area in Heze, Shandong are distributed. The MeloidogynehalplaChitwood was identified according to the feminine perineal pattern, esterase zymogram and North Carolina differential host test. The females and eggs in the peony root wintering, 1a repeated infection 3 times to complete their life history. 15% Tieke Ke and 40% methyl isoflurane control effect of 93 1%