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随着全球气候变化、耕作方式及推广品种的改变,我国各地区主要玉米病害的发生也随之发生改变。20世纪90年代中、后期玉米弯孢菌叶斑病在辽宁地区大爆发,近年来该病害的发生又呈逐年加重的趋势,目前已成为丹东地区重要的叶部病害。掌握该病害的发病规
With the global climate change, farming methods and the promotion of variety changes, the occurrence of major maize diseases in various regions of China also changed. In the mid and late 1990s, the leaf spot of Curvularia lunata showed a big outbreak in Liaoning Province. In recent years, the occurrence of this disease has been increasing year by year. It has become an important leaf disease in Dandong. Grasp the disease rules