近年来 ,秦皇岛市菜青虫代数增加 ,为害期加长 ,加之菜农滥用农药和秋季持续高温 ,致使菜青虫抗性增强 ,为害更加猖獗。为了进一步筛选出既可提高蔬菜产量和品质 ,又能使蔬菜向无公害化方向发展 ,１９９９年该市植保站对抑太保５ %ＥＣ ,卡死克５ %ＥＣ和敌杀死进行了防治菜青 In recent years, Qinhuangdao cabbage caterpillars increased algebra, prolonged damage, coupled with the excessive use of pesticides and vegetable farmers continued high temperatures in autumn, resulting in enhanced resistance cabbage caterpillars, damage more rampant. In order to further screen out both to improve vegetable yield and quality, but also to make the direction of pollution-free vegetables in 1999, the city plant protection station of the CPP 5% EC, 5% EC card death and the enemy killed the disease prevention and treatment of vegetables