玉米锈病在我区发生危害逐年加重，现将其发生规律及防治技术报道于后：玉米锈病主要危害叶片，严重时也可危害果穗及苞叶。初期呈浅黄色长形至卵形褐色小脓疱，后小脓疮破裂，散出铁锈色粉状物，即病菌的夏孢子，后期病斑上生出黑褐色近圆形或长圆形突起，开裂后露出黑褐色冬 The occurrence of corn rust in our area has been increasing year by year. Now its occurrence law and prevention and control technology are reported later: Corn rust is the main hazard to the leaves, and in severe cases it can also harm the ear and the husk. The initial pale yellow long oval brown small pustules, after small abscess rupture, rust rust-particle powder, that is, the bacteria of the summer spores, post-lesion on the birth of dark brown nearly round or oblong protrusions, After cracking exposed dark brown winter