不同密度化学信息素控制烟草斜纹夜蛾的效果  

Effects of Different Density of Chemical Pheromones to Control Tobacco Cutworm Moth Spodoptera litura

作　　者：李文瑜[1,2] 杨明文 亚平[2] 何元胜[2] 彭桂清 张道祥 李红梅[2] 

机构地区：[1]湖南农业大学烟草科学与工程技术研究中心,湖南长沙410128 [2]云南省烟草公司临沧市公司,云南临沧677000 [3]云南省临沧市农业技术推广站,云南临沧677000

出　　处：《安徽农业科学》2012年第27期13363-13366,共4页Journal of Anhui Agricultural Sciences

基　　金：中国烟草总公司云南省公司项目(2010YN77)

摘　　要：[目的]研究化学信息素控制烟草斜纹夜蛾的田间最适放置密度。[方法]分别按25.8 m×25.8 m(15.0个/hm2)、31.6 m×31.6m(22.5个/hm2)和36.5 m×36.5 m(30.0个/hm2)各放置16个诱捕器(4行×4排),同时设不低于2 hm2的空白对照,3次重复。[结果]在忽略风向的影响下,随单个诱捕器控制面积的增加,诱蛾量有所增加,但3种不同密度处理间诱蛾量差异不显著;3种放置密度均可有效控制烟田斜纹夜蛾的发生,减少农药使用,保护田间自然天敌,降低防治成本。[结论]化学信息素控制烟草斜纹夜蛾的诱捕器放置密度以31.6 m×31.6 m(22.5个/hm2)为宜。[Objective] To study the most suitable density of chemical pheromone to control Spodoptera litura in tobacco fields.[Method] 16 traps（4 lines × 4 rows） were placed as 25.8 m × 25.8 m（15.0 trap/hm2）,31.6 m × 31.6 m（22.5 trap/hm2） and 36.5 m × 36.5 m（30.0 trap/hm2）,meanwhile a control area more than 2 hm2 was set up with three repetitions.[Result] Without taking into account the impact of wind direction,the trap catches increased with the increase of the controlled area of a single trap,but trap catches were not significantly different under the three different density treatments.Under these three densities,the chemical pheromone had effective control to S.liture in tobacco fields,reduced the use of pesticides and protected the natural enemies and reduced the control cost.[Conclusion] The suitable density of chemical pheromone traps to control tobacco cutworm moth S.litura was the specification of 31.6 m × 31.6 m（22.5 trap/hm2）.

关 键 词：化学信息素 控制 烟草斜纹夜蛾 密度试验 

分 类 号：S435.72[农业科学—农业昆虫与害虫防治]