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棉花黄萎病和枯萎病一样,早经确定是土壤传染的病害;病残体、风、雨、农具等都是传播病害的主要途径。关于种子带菌问题,自1923年以来,棉花枯萎病的种子带菌已不断得到证实,国内外均予重视。黄萎病是否能以种子传布,在学术上一直是一个争论的问题。我国棉花黄萎病的最早来源被认为是随美棉输入而侵入的;国外也有不少关于因输入美棉或其他病区棉种而发现黄萎病的报导。国内还有不少调查资料证明,枯萎病和黄萎病往往都以棉花研究单位和良种繁育场发生较早,逐步向外扩展,因而将这二种病害列为检疫对象。
Like Verticillium wilt, cotton Verticillium wilt has been identified as a disease of soil infection. Diseases, wind, rain and agricultural tools are the main ways to spread diseases. With regard to the issue of seed-borne diseases, since 1923, the seed-borne disease of cotton blight has been continuously confirmed and both at home and abroad have been given priority. Whether verticillium wilt spread by seed has been an academic issue for a long time. The earliest source of cotton verticillium wilt in China is believed to be invasive with the input of US cotton. There are also many reports about the detection of verticillium wilt in cotton wool imported from other areas in the United States. There is also a lot of domestic survey data to prove that Fusarium wilt and Verticillium wilt often take cotton research units and seed breeding farms occur earlier and gradually outward expansion, so these two diseases as a quarantine object.