大港地区3代粘虫大发生原因及防控举措

摘要

In recent years,the armyworm in northeast China,north China and Tianjin City all appeared in high density focus hazard situation.In Dagang area,three generation armyworm peak reached in late July to mid-August each year.To effectively deal with the possibility of major insect pests, after nearly two years of field investigation,occurrence reasons of the three generations of armyworm in Dagang area were analyzed ,and effective comprehensive prevention and control measures were put forward.%近几年来，粘虫在我国东北、华北局部地区和天津市均出现高密度集中危害情况。在大港地区每年的7月下旬至8月中旬，是3代粘虫危害高峰期，为有效应对可能发生的重大虫害，经过近2年的田间调查，对3代粘虫在大港地区大发生的原因进行了综合分析，并提出行之有效地综合防控措施。