应用信息素监测云杉八齿小蠹的扬飞规律

Adult Emergence Rule of lps typographus Linnaeus Monitored by Pheromone

于2002—2005年,应用聚集信息素对云杉八齿小蠹成虫的扬飞规律进行了监测。全年扬飞曲线头出现两次扬飞高峰,证实云杉八齿小蠹的越冬成虫和新羽化出的成虫都能对信息素发生强烈的聚集反应。日诱捕反应节律的观察表明：云杉八齿小蠹虽然多数时间在寄主树皮内营黑暗生活,但仍然具有日间活动昆虫的特点,其活动规律主要受林问温度的影响。

Pheromones were applied to investigate the adult emergence of L typographus L. during 2002 and 2005. Two peaks were found in an emergence curve for the adults in a year, indicating that overwintering adults as well as post-eclosion adults strongly aggregate in response to aggregation pheromones. Although the beetles live in the dark galleries of the host ptdoem for most of the time, the beeries still act like insects that are active during the day judging from the investigation of daily trap reactions. Temperature in the woods is the main factor that influences the activity rule of L typographus adults.