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2019年全国小麦虫害发生程度或重于上年
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2019年全国小麦虫害发生程度或重于上年
摘要: 2019年春季,黄淮、华北大部麦区气温正常或偏高,降水正常或略偏多,有利于小麦蚜虫发生为害。据全国农业技术推广服务中心预计,2019年小麦蚜虫在华北大部和黄淮北部麦区发生程度重。据全国农业技术推广服务中心预计,2019年小麦主要病虫害总体偏重发生,其中虫害发生面积累计约4.2亿亩(28百万公顷)。其中值得注意的是,蚜虫在华北大部和黄淮北部麦区发生程度重。 据国家气候中心预测,2018年冬季,全国大部麦区气温偏高,黄淮麦区大部气温偏高1-2℃,西北及黄淮大部麦区降水正常或偏少,对小麦蚜虫等...
Insecticides China News 201902(Chinese version)
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