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近年来。我省及京津地区的玉米两病(即粗缩病和矮花叶病。下同)再次流行,严重影响了粮食生产,成为玉米生产中亟待解决的问题。同时也引起了各级领导和农业专家学者的高度重视。为了搞清
In recent years. The prevalence of both maize diseases (ie, sickening and dwarf mosaic diseases) in our province and Beijing-Tianjin region has once again seriously affected the grain production and has become an urgent issue to be solved in the corn production. At the same time, it has also drawn great attention from leaders at all levels and agricultural experts and scholars. To find out