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当前油菜主要病虫害发生动态及趋势预报
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当前油菜主要病虫害发生动态及趋势预报
2017年3月9日,全国农业技术推广服务中心对外发布最新的油菜主要病虫害发生动态。全国农业技术推广服务中心表示,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,陕西和河南处于抽薹期。由于冬季全国大部地区气温较常年同期偏高,早春油菜病虫害发生期提前,发生程度重于常年。截至3月5日,全国油菜病虫害发生面积为2651万亩,比上年同期增加15.1%。其中具体:菌核病 全国发生面积671万亩,比上年同期增加54.3%。霜霉病 主要发生在西南、江南和长江中游地区...
Fungicides China News 201703 (Chinese version)
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