国槐小卷蛾在石家庄地区的发生规律和行为观察

摘要

国槐小卷蛾是一种为害严重的钻蛀性害虫。为了掌握国槐小卷蛾在石家庄地区的发生规律和行为特征，采用野外调查和室内观察的方法，研究了国槐小卷蛾的生活史、生活习性和行为特征。结果表明：国槐小卷蛾幼虫常蛀食为害国槐和龙爪槐的羽状复叶叶柄基部、嫩梢、花穗和果荚等，严重影响树木的正常生长及观赏性。国槐小卷蛾成虫在石家庄地区1a中有2次发生高峰，其羽化盛期分别为5月下旬~6月中旬和8月下旬~9月中旬。%In order to study the occurrence regularity and behavior of Cydia trasias (Meyrick),the methods of field and indoor observation were used to investigate the life cycle,living habits and behavioral characteristics. Results showed that the larva bored petiole basal part, young shoot, flower cluster and infruit of Sophora japonica and Sophora japonica (Pendula). It seriously affected the plant growth and ornamental. Adult peak e-merged from the end May to middle June and the end August to middle September in one year. C. tras ias was one species of highly harmful borers. There were two generations per year in Shijiazhuang City.