4种甜菜夜蛾性诱剂大田诱捕效果比较

Trapping Efficiency of Four Sex Attractants against Spodoptera exigua Hübner in Field

通过大田试验,对4种甜菜夜蛾性诱剂的诱捕效果进行了测定,并分析比较不同时间段的性能差异。结果表明,在1～30d内,诱芯A、B、C在日均诱蛾量、最高单日诱蛾量、总诱蛾量上都要显著优于诱芯D;1～10d内,诱芯A的诱捕量最高,诱芯B和C的诱捕量差别较小;11～20d内,诱芯B的诱捕量最高,诱芯A的诱捕量次之,但都明显高于诱芯C,D;21～30d内,诱芯A,B,D的诱捕量相似,但是以诱芯A的略高于诱芯B,D,而诱芯C的诱捕量反而最低。31～45d,诱蛾量为B>A>D>C;4种诱芯诱蛾灵敏度依次为B>D>A>C;其中以诱芯B的诱蛾灵敏度最高,为88.15%,诱芯D次之为74.07%,A和C分别为67.41%,61.48%。

The trapping efficiency and effective duration of four sex attractants against Spodoptera exigua Hübner in field were studied.The results showed that the daily trapping amount,the highest trapping amount and the total trapping amount of Lure A,B,C were both higher than the Lure D,from 1-10 d.The Lure A trapping amount was the most,and Lure B and C were the same,from 10-20 d.The Lure B trapping amount was the most,and more was Lure A,and higher than Lure C and D,from 21-30 d.The Lure trapping amount of Lure A,B and D were the same,the lowest efficiency of Lure C,from 31-45 d.The Lure trapping amount of Lure BADC,the comparison sensitivity of four sex attractants were B（88.15%）D（74.07%） A（67.41%）C（61.48%）.