近日,河南省植物保护植物检疫站邀请河南农业大学、河南农科院、省气候中心及国家和省小麦产业技术体系有关专家等专业测报人员,对河南省2017年小麦中后期重大病虫害的发生趋势进行了分析会商。根据当前小麦病虫害发生基数、品种抗性、苗情及3~5月份天气形势等因素综合分析,预测河南省小麦中后期病虫害总体将偏重发生,主要病虫害发生总面积2.5亿亩次左右。具体预报结果如下: Recently, Henan Plant Protection Plant Quarantine Station invited Henan Agricultural University, Henan Academy of Agricultural Sciences, the provincial climate center and the national and provincial wheat industry technology system and other experts and other professional newspaper reporters on Henan Province in 2017 the late mid and late major pests and diseases trend We conducted analysis meeting. According to the current wheat pest occurrence base, variety resistance, seedling situation and the weather situation from March to May, a comprehensive analysis of the forecast of pests and diseases in Henan Province in the latter part of the overall emphasis will occur, the main pests and diseases occurred a total area of ​​about 2.5 million mu times. The specific forecast results are as follows: