Torres-Vila L M, Rodríguez-Molina M C, Stockel J
Departamento de Fitopatología, Servicio de Investigación y Desarrollo Tecnológico (SIA), Finca La Orden Apdo. 22, Badajoz, Spain.
Bull Entomol Res. 2002 Jun;92(3):241-9. doi: 10.1079/BER2002155.
Virgin females of Lobesia botrana Denis & Schiffermüller were mated at ages of 1, 3, 5, 8, 12 and 16 days and the effect of mating delay on reproductive output assessed. Delayed mating did not affect female mating success but fertilization was reduced in 16-day-old females. Increased mating delays substantially affected daily oviposition pattern and resulted in a significant reduction of both fecundity and fertility, so that mean number of viable eggs laid decreased from 150 to 22 in 1- and 16-day-old mated females, respectively. Heavier females were more constrained than lighter ones by mating delays and female reproductive efficiency (no. viable eggs/female body weight) was also significantly reduced. Female longevity significantly increased and oviposition period gradually declined with mating delay. The number of viable eggs was positively correlated with both female weight and oviposition period; female longevity and female weight were also significantly correlated. However, the significance of these correlations declined with increased mating delay. Results overall indicated that mating delay drastically reduces female L. botrana reproductive output. The implications of delayed mating of females are discussed from an ecological perspective in relation to L. botrana control using mating disruption.
葡萄小卷蛾（Lobesia botrana Denis & Schiffermüller）的未交配雌蛾分别在1日龄、3日龄、5日龄、8日龄、12日龄和16日龄时进行交配，并评估交配延迟对繁殖产出的影响。交配延迟并不影响雌蛾的交配成功率，但16日龄雌蛾的受精率降低。交配延迟时间增加对每日产卵模式有显著影响，导致产卵量和繁殖力显著下降，因此1日龄和16日龄交配雌蛾产下的可存活卵的平均数量分别从150枚降至22枚。较重的雌蛾比轻的雌蛾更容易受到交配延迟的限制，并且雌蛾的繁殖效率（可存活卵数/雌蛾体重）也显著降低。随着交配延迟，雌蛾寿命显著延长，产卵期逐渐缩短。可存活卵数与雌蛾体重和产卵期均呈正相关；雌蛾寿命和雌蛾体重也显著相关。然而，随着交配延迟时间增加，这些相关性的显著性降低。总体结果表明，交配延迟会大幅降低葡萄小卷蛾雌蛾的繁殖产出。从生态角度讨论了雌蛾交配延迟对利用交配干扰防治葡萄小卷蛾的影响。
