中文摘要：

2009年秋季在天津地区大葱田,进行了不同性信息素产品诱捕甜菜夜蛾Spodoptera exigua的对比研究。结果表明,3种塑料毛细管型诱芯（1~3号）和2种硅橡胶塞型诱芯（4、5号）对甜菜夜蛾成虫均具有灵敏、高效和持效期长的特点。放置诱捕器42d时各处理平均诱蛾量（头.器-1.2d-1）：5号为92.13头,优于其他4种产品,与1号（45.27头）相比差异显著。53d时各处理总诱蛾量1007.3~2138.3头.器-1,最高和最低诱蛾量相差2.12倍。不同产品的性价比3号最高为15.41,其次为4、5号,分别为12.45、7.76,2号和1号较低,分别为4.97和3.78。

英文摘要：

The trapping effects of different sex pheromone products for beet armyworm,Spodoptera exigua,were examined in Chinese green onion in Tianjin,China.The trapping catches in different periods and the total catches were analyzed and the performance-price ratios of different products were compared.Results showed that all the 5 products were sensitive,high-efficient and long-lasting.The average trapping catches during the 42 d trapping period were different,No.5 trap（92.13 moths·trap-1·2d-1） being better than the other 4 products.Significant difference was found between No.5 and No.1 trap（45.27 moths·trap-1·2d-1）.The total trapping catches within 53 d ranged from 1007.3 moths to 2138.3 moths per trap.Performance-price ratios of the 5 products were different,being the highest（15.41） in No.3 trap,second in No.4（12.45） and No.5（7.76） trap.and the lowest in No.2（4.97） and No.1（3.78） trap.