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据黑龙江省各测报站调查结果,结合历史资料及天气预报综合分析,预计全省玉米螟为中等偏重发生,以基数高、玉米长势较好的地区发生为重。发生期较常年明显拖后,成虫羽化盛期南部地区约为7月15日左右,北部地区约为7月20日左右,发生面积约为1600万亩。发生区域以中、南部玉米主产
According to the survey results of all the measuring stations in Heilongjiang Province, combined with historical data and comprehensive analysis of the weather forecast, it is estimated that the corn borer will be moderately heavier in the whole province, taking the areas with high base number and better corn growing. Occurred significantly more perennial than the perennial, adult eclosion peaked in the southern region about July 15, about 20 July in the northern region, the occurrence of an area of about 1600 mu. The occurrence of the region to the main production of corn in the south