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根据玉米前期病虫害发生情况,结合目前玉米病虫害发生基数、玉米耕作栽培方式及作物布局,结合未来气候趋势预测等因素综合分析,7月16日全国农业技术推广服务中心预计今年玉米中后期病虫害总体为偏重发生,发生程度重于常年,虫害重于上年,病害轻于上年,预计全国玉米中后期病虫害发生9.2亿亩次。其中,虫害发生6.2亿亩次,病害发生3.0亿亩次。一、虫害以钻蛀性、食叶性、刺吸性害
According to the occurrence of pests and diseases in the early stage of maize, combined with the current base of maize pests and diseases, cultivation and cultivation methods of maize and crop layout, combined with the future analysis of climate trends and other factors comprehensive analysis, July 16 National Agricultural Technology Extension Service Center is expected this year maize pests and diseases in the overall Emphasis on occurrence occurs more heavily than perennial pests heavier than the previous year, the disease was lighter than the previous year, is expected to occur in the late maize pests and diseases 9.2 billion mu times. Among them, pests occurred 6.2 million mu times, disease occurred 300 million mu times. First, insects to borers, leafy, thorn suction sex damage