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全国农作物重大病虫测报网监测数据显示,8月上旬,内蒙古、河北、北京、天津、山西等部分地区玉米粘虫三代幼虫相继暴发,面积之大、范围之广、密度之高为近10年罕见,对玉米、谷子、水稻等粮食作物生产造成严重威胁。初步统计,全国粘虫发生面积已超过3000万亩。其中,内蒙古发生面积约800万亩,重发区域为通辽和赤峰;河北发生面积990万亩,重发区域为廊坊、唐山、沧州、保
In early August, the third generation larvae of armyworm, Mythimna separatea, in Inner Mongolia, Hebei, Beijing, Tianjin and Shanxi were successively outbreaks with large areas, wide ranges and high densities of nearly 10 years Rare, on the corn, millet, rice and other food crops pose a serious threat. According to preliminary statistics, the occurrence area of armyworm in the country has exceeded 30 million mu. Among them, an area of about 8000000 acres in Inner Mongolia, the re-issued areas for the Tongliao and Chifeng; Hebei area of 9900000 hectares, the re-issued areas Langfang, Tangshan, Cangzhou, Paul