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近年来,棉花黄萎病在安阳县呈逐年加重发生趋势,全县6.5万亩棉花,发病面积近3.9万亩,占棉花总面积60%,黄萎病成为棉花生产上的重要病害,也成为制约安阳县棉花高产稳产的重要因素。1.暴发原因1.1品种抗性差是棉花黄萎病易暴发的主要因素。选用抗病品种是预防枯萎病和黄萎病的有效手段。但由于黄萎病抗性育种进展不大,目前安阳县使用的棉花品种大多对枯萎病抗性强,而对黄萎病抗性差,甚至高感黄萎病。
In recent years, Verticillium wilt occurred in Anyang County, the trend has been increasing year by year, the county 65,000 mu of cotton, the incidence of nearly 39,000 mu, accounting for 60% of the total area of cotton, Verticillium wilt become an important disease in cotton production, but also become Restricting Anyang County cotton high and stable production of important factors. 1. The reasons for the outbreak 1.1 poor resistance to cotton varieties are vulnerable to outbreaks of Verticillium wilt main factor. The use of resistant varieties is an effective means of preventing Fusarium wilt and Verticillium wilt. However, due to the progress of resistant breeding of Verticillium wilt, most of the cotton varieties used in Anyang County are resistant to Fusarium wilt but poorly resistant to Verticillium wilt and even highly susceptible to Verticillium wilt.