玉米是我区的主要秋作物,多年来单产一直低于全省平均水平,低产原因虽然与春旱、伏旱以及后期低温等灾害性天气有关,但是近年来玉米各种病害接踵而至对产量提高的影响也是很大的。其中玉米大斑病流行广,发病严重,是玉米生产的一大威胁。为此,1981年对我区玉米大斑病进行了调查,分析了流行原因,提出了防治意见。 Maize is the main autumn crop in our region. The yield has been below the provincial average for many years. Although the cause of low yield is related to severe weather such as spring drought, summer drought and late low temperature, maize is one of the major autumn crop in recent years, The impact is also great. One of the widespread epidemic of maize leaf spot, the incidence is serious, is a major threat to the production of corn. To this end, in 1981, my area maize leaf spot disease were investigated, analyzed the causes of the epidemic, put forward prevention and treatment advice.