| 我国稻螟灾害:暴发及对策 |
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| 引用本文： | 盛承发.我国稻螟灾害:暴发及对策[J].中国科学院院刊,2005,20(3):200-204. |
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| 作者姓名： | 盛承发 |
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| 作者单位： | 动物研究所,北京,100080 |
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| 摘 要： | 当前,我国水稻螟虫暴发上升为头号农业害虫,估计每年造成的直接经济损失达160亿元。我国是稻螟的主要受害国,螟灾的特点是虫口密度高、年发世代多、受害范围广、受害程度重、持续时间长、经济损失大、生态环境及社会成本高。暴发的主要原因是农业生态系统结构演变,成灾的主要原因是分散经营引起控制的整体水平下降。作者预计未来5—7年我国螟灾将呈加重或居高不下之势,就此提出若干政策性建议。
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| 关 键 词： | 二化螟 三化螟 虫灾 原因 对策 |
| 修稿时间： | 2005年4月4日 |
The Rice Borers in China: Outbreaks and Policy Suggestions |
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| Sheng Chengfa.The Rice Borers in China: Outbreaks and Policy Suggestions[J].Bulletin of the Chinese Academy of Sciences,2005,20(3):200-204. |
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| Authors: | Sheng Chengfa |
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| Institution: | Institute of Zoology, CAS, 100080 Beijing |
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| Abstract: | A complex of the rice stem borer and yellow rice borer has become the No. 1 agricultural pest in China and the direct loss is estimated at 1.9 billion US dollars per year. The current occurrence is characterized as higher population densities, increased generations, larger damage areas, more server infestations, longer injury time, greater economic loss and higher ecological and social costs. The major cause of outbreaks is related to change in agro-ecosystem and the control failure is lack of community-wide actions. It is predicted that the pest populations will continue to increase or keep at high levels in the near future. Several policy strategies are suggested. |
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| Keywords: | Chilo suppressalis Tryporyza incertulas insect disaster causes strategies |
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