Abstract Delayed mating is an effective strategy that can decrease the fecundity of a pest by reducing the time that females have to mate. This disruption does not completely inhibit mating and may lead to multiple matings. The effects of delayed mating with multiple partners on different indexes of mating in female and male Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) were determined in this study. The delay in mating significantly decreased the number of matings and the mating success of both sexes and the male contribution to reproduction. Compared with the effect on female fecundity, the delayed mating with multiple partners had a greater effect on the male mate contribution to fecundity. The longevity of females and males increased significantly with a 72 h delay in mating. Linear regression analysis showed negative relationships between delayed mating and fecundity and number of matings in both sexes. Thus, delayed mating with multiple partners can disrupt the mating and reproductive potential of S. litura.

中文翻译：

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与多个伙伴的延迟交配降低雌性和雄性斜纹夜蛾（鳞翅目：夜蛾科）的交配指数

摘要 延迟交配是一种有效的策略，可以通过减少雌性交配时间来降低害虫的繁殖力。这种中断不会完全抑制交配，可能会导致多次交配。本研究确定了多伴延迟交配对雌性和雄性斜纹夜蛾（Fabricius）（鳞翅目：夜蛾科）不同交配指标的影响。交配延迟显着降低了交配次数和两性的交配成功率以及雄性对繁殖的贡献。与对雌性生育力的影响相比，多伴延迟交配对雄性配偶对生育力的贡献影响更大。交配延迟 72 小时，雌性和雄性的寿命显着增加。线性回归分析表明，延迟交配与繁殖力与两性交配次数呈负相关。因此，延迟与多个伴侣交配会破坏斜纹夜蛾的交配和繁殖潜力。