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１９８９年在郑州、开封两市郊区采集黄瓜、西瓜、瓠瓜和冬瓜枯萎病株，经分离鉴定，其病菌都是尖镰孢（ＦｕｓａｒｉｕｍｏｘｙｓｐｏｒｕｍＳｃｈｌ．）。用１０种瓜类作物鉴别寄主鉴定，瓜类枯萎病菌，可分为４个专化型：黄瓜枯萎病菌属尖镰孢黄瓜专化型（Ｆ．ｏｘｙsｐｏｒｕｍＳｃｈｌ．ｆ．ｓｐ．ｃｕｃｕｍｅｒｉｎｕｍＯｗｅｎ）；西瓜枯萎病菌属尖镰孢西瓜专化型（Ｆ．ｏｘｙｓｐｏｒｕｍＳｃｈｌ．ｆ．ｓｐ．ｎｉｖｅｕｍ（Ｅ．Ｆ．Ｓｍｉｔｈ）ＳｎｙｄｅｒａｎｄＨａｎｓｅｎ）；瓠瓜枯萎病菌属尖镰孢葫芦专化型（Ｆ．ｏｘｙｓｐｏｒｕｍＳｃｈｌ．ｆ．ｓｐ．ｌａｇｅｎａｒｉａｅＭａｔｕｏａｎｄＹａｍａｍｏｔｏ）；冬瓜枯萎病菌是一个新的专化型，定名为尖镰孢冬瓜专化型（Ｆ．ｏｘｙｓ－ｐｏｒｕｍＳｃｈｌ．ｆ．ｓｐ．ｂｅｎｉｎｃａｓａｅＳ．Ｚ．ＷａｎｇａｎｄＹ．Ｃ．Ｗｕｆ．ｓｐ．ｎｏｖ．）。尖镰孢酯酶同工酶酶谱测定结果表明，４个专化型的酶谱明显不同。
In 1989, in Zhengzhou, Kaifeng suburbs of the two cities collected cucumber, watermelon, gourd and melon wilt strains, isolated and identified, the pathogen is Fusarium oxysporum (Fusarium oxysporum Schl.). With 10 kinds of melon crops to identify host identification, Fusarium wilt pathogens, can be divided into four specializations: Fusarium oxysporum Cucumber cucumber Fusarium (F. oxysporum Schl.f.sp.cucumerinumOwen); Fusarium oxysporum F. oxysporum Schr.f. sp.niveum (E.F. Smith) Snyder and Hansen); Fusarium oxysporum Fusarium oxysporum specific strain (F. oxysporum Schl.f.sp. lagenariae Matuo and Yamamoto ); Fusarium oxysporum is a new specialization type, named F. oxysporum melon (F.oxys-porumSchl.f.sp.benincasaeS.Z.WangandY.C.Wuf.sp.nov.). Fusarium oxysporum isoenzyme isoenzymes zymogram results showed that the four special zymogram distinctly different.