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根据2006年浙江省农作物主要病虫害发生情况、冬前病虫基数以及气象条件预报,并结合品种抗病(虫)性、耕作制度、作物布局,以及病虫抗药性等因素综合分析,2007年浙江省农作物重大病虫害将呈偏重发生态势,稻纵卷叶螟、褐飞虱和一代二化螟预计大发生。其他大部分病虫发生程度接近常年。2007年全省农作物主要病虫发生面积预计1.7亿亩次,需防治面积在2.5亿亩次以上。
According to the occurrence of major pests and diseases in winter in Zhejiang Province, the base of winter pests and diseases and the forecast of meteorological conditions in winter in 2006, and combined with the comprehensive analysis of disease resistance (insect pest), farming system, crop layout, pest and disease resistance and other factors, Major pests and diseases of the province’s crops will be on the rise, and the occurrence of rice leaf roller, brown planthopper and Chilo suppressalis is expected to occur. Most other pest occurrences are near perennial. In 2007, the estimated area of main pests and diseases of crops in the province is estimated to be 170 million mu, and the area to be controlled should be above 250 million mu.