棉花黄枯萎病是影响棉花产量的主要病害。在宁晋县的发生逐年加重,特别是植棉老区该病害严重制约棉花的产量水平。通过田间调查2006年、2007年棉田病田率达到了70—90%,严重地块造成死苗及花铃期枯死率高达40%以上。为了控制该病的危害,采取以下五项管理措施,取得了良好效果。 Cotton yellow blight is the main disease affecting cotton yield. The occurrence of Ningjin County has been increasing year by year, especially in old cotton-planting areas. The disease seriously restricts the output level of cotton. Through the field investigation in 2006, the field rate of cotton field in 2007 reached 70-90%, resulting in more than 40% mortality rate of dead seedlings and flower-boll plants in the severe land. In order to control the harm of the disease, the following five management measures have been taken and good results have been achieved.