摘要： 经鉴定，中国黄瓜枯萎病病原菌为尖孢镰刀菌。生理小种鉴定，引用Armstrong等所采用的鉴别寄主MSU8519、MSU44134、PI390265进行“抗”或“感”的反应侧定。结果分别为抗一抗-感的反应，证明国内黄瓜枯萎病菌类孢镰刀菌也存在小种，与美国、以色列和日本所存在的特性不同，暂定名为小种4号。防治试验结果，带病种子用有效成分0.1%防霉宝可湿粉+0.1%平平加溶液浸种1h,消毒效果100%;发病初期，采用新杀菌剂12.5%治萎灵水剂200～400倍液灌根治疗，防效达81.23%～92.00%,每亩增产34.98%～46.09%.

关键词: 黄瓜枯萎病, 生理小种, 防治, 新农药

Abstract: The pathogen of cucumber wilt in China was identified as Fusarium oxysporum Schlecht.The existence of a pathogenic race of F.oxysporum in China was identified by the test of response to a set of varieties serving as differential hosts used by Armstrong.Results of the test indicated that the pathogenic race was different from the distinct race reported in Florida of U.S.A.,Isreal or Japan.Thus it was proposed to designate the new race as race 4The fungus-carrying seeds,when imbued with Fung meibo0.1% effective gradience)+0.1% water solution of Pingping-Jia for one hour,were disinfected with 100% efficiency.At the earlier period of th treating the roots of with 12.5% Zhi-Wei-Ling200 Fungicide,could result in 81.23-92.00% control efficiency and 34.98-46.09.

Key words: Cucumber wilt, Identification of pathogenic are, Control with new pesticides

中图分类号: 

• S436.421.13