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玉米弯孢菌叶斑病[Curvularialunata(Wakker)Boed．]是我国新近几年玉米上发生的重要病害。其危害性在一些地区已经超过大小斑病，成为主要玉米病害．国内外关于该病害的研究，在寄主方面主要侧重在抗病性、抗病性遗传及品种抗病性鉴定上。在我国，普遍缺少高度抗病的品种和自交系，抗病的品种和自交系的遗传背景和抗病基因也不清楚，目前主推的品种遗传基础过窄，是寻找多抗品种的主要障碍．在病原菌方面，我国以新月弯孢菌气生变种（Curvularialunata）危害玉米为主，该病菌致病性和产毒能力都很强，不同地区的病菌菌株存在致病力的差异，但其遗传背景和相互关系尚需深入研究。该病害蔓延快，危害重,应引起广泛重视．
Curvularia unata (Wakker) Boed. ] Is an important disease that occurred on maize in recent years in our country. Its harmfulness in some areas has exceeded the size of spot disease, a major maize disease. Domestic and foreign research on this disease mainly focuses on disease resistance, disease resistance inheritance and disease resistance identification of hosts. In our country, there is a general lack of highly resistant varieties and inbred lines. The genetic backgrounds and disease-resistance genes of disease-resistant varieties and inbred lines are also not clear. At present, the genetic basis of the main varieties is too narrow, which is mainly for searching for multiple resistant varieties obstacle. In pathogenic bacteria, the main species of corn in China is Curvularialunata. The pathogenicity and toxicity of the bacteria are very strong. Pathogenicity differences exist in different regions of the pathogenic bacteria, but their genetic Background and interrelationships still need further study. The rapid spread of the disease, endangering heavy, should cause widespread attention.