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晚稻主要病虫害发生动态
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晚稻主要病虫害发生动态
2015年9月22日,全国农业技术推广服务中心发布了晚稻主要病虫害发生动态。据全国农业技术推广服务中心情报,当前,华南和江南双季晚稻处于孕穗至抽穗期,长江中下游单季晚稻大部处于抽穗至灌浆期乳熟期,迁飞性害虫和流行性病害对后期产量形成仍存在较大威胁。 一、迁飞性害虫 稻飞虱在华南、江南和长江中下游稻区当前发生面积1.02亿亩次,同比增加4%。 稻纵卷叶螟在华南、江南和长江中下游稻区当前发生面积7125万亩次,同比减少3.5%。 二、流行性病害 稻瘟病在华南、江南、长江中下游和东北稻区当前发生面积近...
Fungicides China News 201509 (Chinese version)
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