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小麦条锈病10年来同期发生面积最大,程度最重
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小麦条锈病10年来同期发生面积最大,程度最重
根据各地调查,截止至3月17日,小麦条锈病在西南、汉水流域和黄淮南部等麦区9个省72个市303个县见病,累计发生面积1,028万亩(68.53万公顷),累计发生面积比2017年和2019年同期分别增加64.7%和4.3倍,是近10年来同期发生面积最大、程度最重的一年。小麦条锈病是典型的气传流行性病害,扩散区域广、流行速度快,一旦大面积流行将严重影响小麦产量。当前,该病在西南、汉水流域及黄淮南部等麦区发生早,扩散流行快,局部危害重,对东部主产区小麦生产构成严重威胁。
Fungicides China News 202003(Chinese version)
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