2007年,岐山县玉米田2代黏虫幼虫较常年偏重发生。通过对发生特点和气候、栽培等因素的分析,得出6月份降雨充足和田间秸秆残留量较高是造成2代黏虫幼虫较常年偏重发生的主要原因。并根据分析结果提出:6月份应加强测报和普查,警惕2代黏虫暴发为害;免耕田应积极落实黏虫防治等配套措施;黏虫防治可结合玉米田化学除草一并进行等测防对策。 In 2007, the second generation of cotton worm larvae in the corn field in Qishan County were more prevalent than those in normal years. Through the analysis of the occurrence characteristics and climate, cultivation and other factors, it is concluded that adequate rainfall in June and high residual straw in the field are the main reasons that the second-generation Myzus persicae larvae are heavier than normal years. According to the results of the analysis, it is suggested that the detection and census should be strengthened in June to guard against the outbreak of the second generation of armyworms. Supporting measures such as prevention and control of the armyworm should be actively implemented in the no-till fields. Countermeasures.