Control Effects of Different Densities of Chemical Pheromones against Tobacco Cutworm Moth （ Spodoptera fitura）

• 作者: Hongmei LI Jiming WANG Mingwen YANG Ping CHEN Qiu ZHAO Yinlian XU YuanxianZHENG Zhengrong PU
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 化学信息素 斜纹夜蛾 控制面积 适宜密度 诱捕器 保护天敌 控制成本 控制区
• 年，卷（期）: pdapzwbchyj_2012,（5）
• 页码范围: 4-7
• 页数: 4页
• 分类号: S763.3

摘要

[Objective]The paper was to study the most suitable density of chemical pheromone to control Spodoptera litura in tobacco fields. [Method]Sixteen traps ( 4 lines × 4 rows) were placed according to the specifications of 25. 8 m × 25. 8 m ( 15. 0 trap/hm2 ) ,31. 6 m ×31.6 m ( 10.0 trap/hm2 ) and 36.5 m × 36. 5m ( 7. 5 trap / hm2 ) . Meanwhile,a control area larger than 2 hm2 was set up with three repetitions. [Result]Without consideration of impact of wind direction,the amount of trapping moth increased with the increasing controlled area of single trap,but difference of trapping amount of moth was not significant under three different density treatments. Three placement densities could effectively control S. liture in tobacco fields,thereby reduce the use of pesticides and protect the natural enemies and reduce the control cost. [Conclusion] The suitable density of chemical pheromone traps to control S. litura was 31. 6 m × 31. 6 m ( 10. 0 trap / hm2 ) .