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水稻矮缩病和黄萎病本是长江以南地区水稻主要病害,豫南稻区发病较少。由于杂交水稻的大面积推广和因全球气候变暖,农民种田粗放管理等多种原因,两种病害在我地从1997年的零星发生到目前已成为豫南水稻主要病害之一。
Rice dwarf and Verticillium wilt are the main rice diseases in the area south of the Yangtze River, and less incidence in the rice fields in the south of Henan. Due to the large-scale popularization of hybrid rice and various reasons such as the global warming and the extensive management of farmers, the two diseases have sporadic occurrence in our country from 1997 to now and have become one of the major diseases in southern Henan.