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全国农业技术推广服务中心组织科研、教学和推广单位专家会商分析预测,2012年水稻病虫害总体呈偏重发生态势,发生程度重于2011年,预计发生面积15亿亩次,同比增加5%。其中,虫害以稻飞虱、稻纵卷叶螟和二化螟为主,全国大部偏重发生,发生面积10.4亿亩次,同比增加5%;病害以纹枯病、稻瘟病、稻曲病、南方水稻黑条矮缩病为主,总体为中等至偏重流行,发生面积4.6亿亩,同比增加6%。
The National Agricultural Technology Extension Service Center organized scientific research, teaching and promotion units to conduct an expert consultation to predict and forecast that in 2012, pests and diseases in the rice industry will generally be heavier and heavier than in 2011, with an estimated area of 1.5 billion mu and an increase of 5% over the same period of last year. Among them, the pests were mainly planthoppers, rice leafrollers and rice stem borers, most of which were heavily biased, with an area of 1.04 billion mu, an increase of 5% over the previous year. The diseases were sheath blight, rice blast, , Black rice streak dwarf disease in the southern part of the country, with an overall prevalence of over 400,000 mu, an increase of 6% over the same period of last year.