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截止3月9日中国油菜细核病发生面积同比减少34.9%
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截止3月9日中国油菜细核病发生面积同比减少34.9%
根据全国农业技术推广服务中心发布数据显示,截止3月9日,全国油菜病虫害发生面积为2143.8万亩,比上年同期减少19.1%。当前,我国冬油菜在西南地区和江南南部处于盛花期,江南北部和长江中下游地区多处于蕾薹期至初花期,陕西处于抽薹期,河南处于苗期。受冬季3次降雪过程的影响,长江中下游局部地区已抽薹的油菜遭受冻害,抗性降低,有利于早春油菜菌核病等病虫害的发生危害。但由于播期偏迟,生育期偏晚,当前病虫害发生总体较轻。 (一)菌核病 全国发生面积437万亩(29.13万公顷),同比减少34.9%。西南...
Fungicides China News 201803 (Chinese version)
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