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根据2007年病虫害发生实况、冬前基数调查结果,以及作物种植制度、品种布局、气象预测资料等因素会商分析,2008年全国农作物重大病虫总体为偏重发生年份。小麦白粉病、条锈病、小麦蚜虫、稻飞
According to the facts of pest occurrence in 2007, the results of pre-winter alpine survey, crop planting system, variety layout and meteorological forecast data, the major crop pests and diseases in the whole country in 2008 are year of emphasis. Wheat powdery mildew, stripe rust, wheat aphids, rice fly