玉米大斑病是沐川县玉米生产上的常见病害之一,历年来由于发病较轻,没有引起重视。2003年,玉米大斑病在全县19个乡镇普遍发生,局部成灾,给部分农户生产、生活带来一定困难。为深入了解玉米大斑病发生的实际情况,正确分析病害大发生原因,并提出相应的防治措施,在县农业局的组织 Corn blight is one of the common diseases in the production of corn in Muchuan County. Over the years, due to the mild incidence, no attention was paid to it. In 2003, maculopathy in 19 counties in the county occurred in general, local disaster, to some farmers produce, life has brought some difficulties. In order to further understand the actual situation of the occurrence of the maize leaf spot disease, correctly analyze the cause of the disease occurrence and put forward the corresponding prevention and control measures, the organization of the county agriculture bureau