权威部门根据全国农业技术推广服务中心冬前组织科研、教学和推广单位专家会商结果,结合水稻病虫基数、栽培制度、冬春季气候条件等因素综合分析,预计2013年水稻病虫害将呈偏重发生态势,发生面积15.2亿亩次,将对3.5亿亩水稻生产构成威胁。其中,虫害以稻飞虱、稻纵卷叶螟和二化螟为主,发生面积10.5亿亩次;病害以为纹枯病、稻瘟病、稻曲病、病毒病为主,发生面积4.7亿亩。 Authoritative department according to the National Agricultural Technology Extension Service Center before winter organization of scientific research, teaching and promotion unit expert consultation results, combined with rice pests and diseases base, cultivation system, winter and spring climatic conditions and other factors comprehensive analysis, 2013 rice pests and diseases will be prevalent partial occurrence Situation, an area of ​​1.52 billion mu times, will pose a threat to 350 million mu of rice production. Among them, the pests were mainly planthoppers, rice leafrollers and rice stem borer, with an area of ​​1.05 billion mu times. The diseases were sheath blight, rice blast, rice false smut and virus disease with an area of ​​470 million mu .