不同性诱剂对甜菜夜蛾雄蛾诱捕效果的研究

Study on Trapping Effects of Different Synthetic Sex Pheromones on Male Moths of Laphygma exigua Hübner

通过大田试验，对3种甜菜夜蛾性诱剂的诱捕效率、持效期等性能进行了测定，并分析比较了它们在不同时间段的性能差异。结果表明，三者之间存在着明显差异，在1—31d内，诱芯A与诱芯B的平均诱捕量相近，极显著高于诱芯C的平均诱捕量，三者的持效期差异亦然；而诱芯B与诱芯C的最高诱捕量相仿，均明显低于诱芯A。但在1—10d内，诱芯A和诱芯C的平均诱捕量相近，均极显著高于诱芯B。

The trapping efficiency and effective duration of three synthetic sex pheromones on male moths of Laphygma exigua Hübner in cowpea field were studied. The results showed that under the given experimental conditions, differences among their trapping performance were highly significant. The average trapping amount of trapping carry A and trapping carry B were the same, both higher than trapping carry C from 1 d to 31 d. The effective duration of the three exhibited similar trend with the trapping amount. The highest trapping amount of the trapping carry B and trapping carry C was the same, both lower than that of the trapping carry A. The average trapping amount of A and C was the same, both higher than that of B from 1 d to 10 d.