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6月下旬以来,河北、山东、河南、安徽等地相继见二点委夜蛾为害夏玉米,初步估计4省发生面积828万亩,部分地区发生严重,个别田块出现死苗现象。河北省目前在石家庄、保定、廊坊、沧州、邢台、衡水、邯郸等夏玉米区均有发生,面积约400万亩。6月中下旬即进入一代成虫高峰期,隆饶县截至6月21日,累计诱蛾6221头,其中6月19日单日诱蛾为1100头;6月20日辛集市单日上灯蛾量达1248头。馆陶县6月8日~19日,单灯累计诱蛾2789头,灯上成虫诱
Since late June, Hebei, Shandong, Henan and Anhui have successively witnessed two-stage insects infestation of summer maize. An initial estimate of the area of 828 mu occurred in 4 provinces, serious occurrence in some areas and the phenomenon of dead seedlings in individual fields. At present, Hebei Province has occurred in summer maize areas such as Shijiazhuang, Baoding, Langfang, Cangzhou, Xingtai, Hengshui and Handan with an area of about 4 million mu. In mid and late June entered the peak of the generation of adults, Long Rao County as of June 21, a total of 6221 entombed moths, of which the single-day on June 19 was 1100 moths; on June 20, Xinji City, Amount of 1248 head. Guantao County, June 8 to 19, a single light total of 2789 lure moths, adult lure lamp