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甜菜夜蛾与斜纹夜蛾性诱芯田间合用的干扰作用
作者：周利琳，司越，望勇，丛晓平，司升云
来源：《湖北农业科学》2013年第05期
摘要：研究了“并列使用”和“复合使用”方式下甜菜夜蛾（Spodoptera exigua）与斜纹夜蛾（Spodoptera litura）性诱芯在田间合用时的干扰作用。结果表明，甜菜夜蛾与斜纹夜蛾性诱芯联合使用对各自诱捕效果均有明显的干扰作用，相对甜菜夜蛾，斜纹夜蛾受干扰程度较小。甜菜夜蛾单控点处理9月上、中、下旬平均诱蛾量较并列双控点处理分别增加了62.66倍、155.33倍、84.47倍；斜纹夜蛾单控点处理则分别增加了22.40倍、4.05倍、0.36倍，差异极显著；相对复合双控点处理，两单控点的增幅均相对较大。同一监测点上安装两种诱芯，在同一诱捕器中的干扰作用强于分装在不同诱捕器中。
关键词：甜菜夜蛾（Spodoptera exigua）；斜纹夜蛾（Spodoptera litura）；性引诱剂；并列使用；复合使用；干扰作用
中图分类号：S435.122 文献标识码：A 文章编号：0439-8114（2013）05-1071-02
Interference Effect of Combined Use of Sex Pheromone Lures of
Spodoptera exigua （Hübner） and S. litura （Fabricius） in Field
ZHOU Li-lin，SI Yue，WANG Yong，CONG Xiao-ping，SI Sheng-yun
（Wuhan Institute of Vegetables Science，Wuhan 430065，China）
Abstract：The interference effect on “parataxis use” and “compound use” of sex pheromone lures of Spodoptera exigua （Hübner） and S. litura （Fabricius） in the field was investigated. The results showed that combining use of the S. exigua lure and S. litura lure had apparent interference to their trapping effects to the other， and the effect on S. litura was less than S. exigua. The average trapping amount when using S. exigua lure only in early， middle and late September was increased by 62.66， 155.33，84.47 folds respectively compared to “parataxis use”； while the average trapping amount when using S. litura lure only was increased by 22.40， 4.05， 0.36 folds， which was of significant difference. Compared with the compound use， the increases of trapping amount of the two single lure treatments were much higher. The interference effect of two kinds of lure set in one trap was stronger than they were set in different traps in the observation site.
Key words： Spodoptera exigua； S. litura； sex pheromone lure； tied for use； compound use； interference effect