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大麦网斑病Helminthosporium teres在长江流域普遍发生,1981年江苏沿江地区严重发生。本病主要为害大元麦叶片,引起叶枯,影响光合作用,导致减产。1982—1984年作者对其发生规律和防治方法进行了初步研究,现简报如下。
Helminthosporium teres, a common occurrence of barley net blotch, occurred in the Yangtze River Basin in 1981 and occurred seriously along the Yangtze River in Jiangsu Province. The disease mainly damaging leaves, causing leaf blight, affecting photosynthesis, leading to reduced production. From 1982 to 1984, the author carried out a preliminary study on its occurrence and prevention methods.