立体防控技术对烤烟主要虫害的防治效果

Control Efficacy of Dimensional Control Techniques on Main Tobacco Pests

为烤烟生产中虫害的防治提供参考,采用田间试验研究了释放天敌、喷施生物农药、放置诱捕器、杀虫灯等立体防控措施对烤烟烟蚜、烟青虫和斜纹夜蛾三大害虫的防治效果。结果表明：放置黄板、释放异色瓢虫、即时打顶抹杈结合喷施生物农药能将烟蚜的发生量控制在200头/百株以下;释放赤眼蜂配合杀虫灯及喷施低毒生物农药对烟青虫的防治效果平均为55.73%～86.73%,防效比喷施化学农药对照区高15.53～17.90百分点;喷施低毒生物农药、放置诱捕器和杀虫灯,可使斜纹夜蛾在发生高峰期控制在10头/667m2内,发生量比喷施化学农药对照区（18头/667m2）低80%。因此,立体防控措施对烤烟三大虫害的防治效果明显。

In order to provide a reference for pest control on the flue-cured tobacco production,field experiments were carried out to study the three main tobacco pests including Myzus persicae,Helicoverpa assulta and Spodoptera litura controlled by dimensional control techniques such as releasing natural enemy insects,spraying biological pesticides,using pheromone traps and frequency vibrational lamp.The results showed that top pruning timely,inserting yellow board and releasing Harmoniaaxyridis could effectively control the aphid population number,which was under 200 per hundred.Furthermore,H.assulta could be controlled by releasing Trichogramma, using frequency vibrational lamp and spraying biological pesticides,the average efficacy was 86.73%,which was 2.86%~17.90% higher than that of chemical control.S.litura could be controlled within 10 head/667 m2 by spraying biological pesticides,using pheromone traps and frequency vibrational lamp,which was 80% lower than that of chemical control.In all,it indicated that the dimensional control techniques was efficient to the three major tobacco pests.