不同诱捕器和不同波段LED灯对美国白蛾的引诱效果
2021-03-12万霞邓建宇王义平
万霞 邓建宇 王义平



摘要 :为提高现有诱捕器及灯光诱捕对美国白蛾Hyphantria cunea (Drury)的诱捕效果,本研究对目前应用的6种美国白蛾诱捕器进行筛选,以明确对美国白蛾诱捕效果最佳的诱捕器及LED波段;同时对美国白蛾日节律进行了观察。结果显示,桶形诱捕器对美国白蛾的诱捕效果最好,平均每个7.1头,显著高于其他诱捕器;灯光诱捕美国白蛾成虫效果最好的波段为360~365 nm;性信息素协同360~365 nm LED灯的诱捕效果显著高于其他两组;美国白蛾昼伏夜出的特性明显,试验结果表明该虫在凌晨02:00-04:00和晚上18:00-20:00的活跃度最高。本研究为性信息素诱捕器及LED灯在不同时间段进行美国白蛾监测与防治提供了技术支撑。
关键词 :美国白蛾; 诱捕器; 日节律
中图分类号: S 477
文献标识码: A
DOI: 10.16688/j.zwbh.2019553
Effects of different trap types and fluorescent tubes at different bands on capture of Hyphantria cunea (Drury)
WAN Xia1, DENG Jianyu2, WANG Yiping1*
(1. College of Forestry and Biotechnology,Zhejiang Agricultural and Forestry University,Hangzhou 311300, China;
2. College of Agricultural and Food Science,Zhejiang Agricultural and Forestry University,Hangzhou 311300, China)
Abstract :In order to improve the trapping efficiency of existing traps and light traps against Hyphantria cunea, this study screened six traps currently in use to identify the best trap and LED bands for trapping H.cunea. Meanwhile, the circadian rhythm of H.cunea was also observed. The results showed that the barrel trap is the best for H.cunea. Averagely 7.1 moths were caught per trap, significantly higher than by other traps. The band with the best trapping effect was 360-365 nm. The effect of sex pheromone combined with 360-365 nm tube was significantly higher than that of the other two groups. H.cunea had an obvious nocturnal habit. The experimental results indicated that the most dynamic time of H.cunea occurred between 2:00 am and 4:00 am, and between 18:00 pm and 20:00 pm. These results provide a useful trapping system for synthetic sex pheromones and fluorescent tubes for better monitoring and control of H.cunea.
Key words :Hyphantria cunea; trap type; circadian rhythm
美國白蛾Hyphantria cunea(Drury)又名秋幕毛虫、秋幕蛾,属鳞翅目Lepidoptera灯蛾科Arctiidae白蛾属Hyphantria。原产于美国、加拿大,于20世纪40年代传入欧洲[1],现已传入欧洲十多个国家;于1945传入日本[2],并且于1961年传入朝鲜半岛[3],随后于1979年由朝鲜半岛传入中国辽宁丹东[4],并于1981年由辽宁传入山东荣成县,在山东蔓延[5];目前在中国北京、天津、辽宁、山东、河北、河南、吉林、陕西、安徽、上海、江苏等地559个县级行政区都已发现该虫为害。美国白蛾是我国进境植物检疫有害生物,已被列入我国首批外来入侵物种[6]。
美国白蛾属典型的多食性害虫,寄主范围广,包括阔叶乔木、灌木、花卉、农作物、蔬菜及草本植物,多达49个科300多种,尤其喜好为害行道树及林地边缘的阔叶树[7]。由于其具有暴食性、杂食性、扩散性强、为害期长的特点,被害树木常受害严重导致死亡[8]。……
