玉米弯孢菌叶斑病又叫玉米螺霉病 ,在河北被称为玉米黄斑病 ,是我国华北、东北夏玉米种植区近几年来新出现的一种对玉米产量影响很大的叶斑病害。该病害 60年代曾在国内外少数地区个别地块发生过 ,80年代中期在河南省新乡地区个别地块也发现过 ,但均因未对生产造成大的危害而被 Maize Curvularia leaf spot, also known as corn sp., Is known as corn maculopathy in Hebei Province. It is a new leaf spot disease that has a great impact on maize yield in recent years in North China and Northeast China. . The disease occurred in a few parcels in a few areas at home and abroad in the 1960s. In the mid-1980s, it was also found in individual plots in Xinxiang, Henan Province, but both were found to have been harmed by the lack of production