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我国稻水象的发生及治理李先誉（全国农业技术推广服务中心１０００２６）稻水象Ｌｉｓｏｒｈｏｐｔｒｕｓｏｒｙｚｏｐｈｉｌｕｓ是水稻生产上的重要害虫，严重发生时可造成５０％以上产量损失，甚至绝产。据报道，在原产地北美洲北纬２０～５０度均为发生区域，而这个纬...
Rice water icon Lisorhoptrusoryzophilus is an important pest in rice production, which can cause over 50% yield loss and even absolute loss in serious occurrence. It is reported that in North America origin 20 to 50 degrees north latitude are occurred region, and this latitude ...