Effects of complementary nutrients on adult’s reproduction and longevity of oriental fruit moth, Grapholitha molesta Busck | 补充营养对梨小食心虫成虫生殖及寿命的影响

Chinese. 研究补充不同营养对梨小食心虫成虫寿命和生殖的影响，为梨小食心虫的人工饲养及其种群动态的准确预测预报提供理论依据。在温度为（26±0.5） ℃、湿度（RH）为（70±10）%、光照LD 15∶9的人工气候箱条件下，以6种不同营养物和蒸馏水作为补充营养，对梨小食心虫进行饲养，每天观察并记录成虫的产卵、存活及卵的孵化情况。取食5%蜂蜜水处理成虫的产卵前期最短，显著短于取食5%白糖水处理外的其他处理；以取食糖醋酒液处理成虫的产卵期最长，显著长于取食蒸馏水和2.5%蜂蜜+2.5%红糖混合液的处理；单雌产卵量和卵孵化率以取食5%蜂蜜水的成虫最高，分别为71.20粒和95.56%，而以取食蒸馏水的成虫最低；取食蒸馏水的雌雄虫寿命最长，取食5%红糖水的雌雄虫寿命最短。取食5%蜂蜜水、糖醋酒液和5%白糖水处理的产卵高峰出现最早，均发生于雌虫羽化后的第6天。供试6种补充营养对梨小食心虫的繁殖具有明显的促进作用。

English. The research investigated the influence of complementary nutrients on the longevity and reproduction of Grapholitha molesta Busck. Effects of six kinds of complementary nutrients and distilled water on adult’s longevity and reproduction of G. molesta were investigated in climate controlled chambers of (26±0.5) ℃, RH(70±10)%, LD 15∶9. The treatment fed on 5% honey-water solution had the shortest pre-oviposition period, significantly shorter than other treatments except the females fed on 5% white sugar solution. The females fed on the mixed liquids of sugar-aceticacid ethanol had the longest period of spawning, which was significantly longer than the females fed on distilled water and mixed liquids of 2.5% honey + 2.5% brown sugar. (The females) the maximum egg laying amount and hatching rate-appeared in the treatment fed on 5% honey-water solution, reached 71.20/♀, and 95.56% respectively. But the treatment fed on distilled water had the lowest egg laying amount and hatching rate. The longest longevity of adults was the one fed on distilled water, while the shortest was the one fed on 5% brown sugar solution. Laying peak of the treatments appeared on the sixth day after eclosion, which was fed on 5% honey-water solution, mixed liquids of sugar-aceticacid-ethanol and 5% white sugar solution. The six kinds of complementary nutrients had obvious effects on the reproduction of G. molesta._