Effect of Photoperiod on Longevity, Food Consumption, and Reproduction of Holotrichia oblita (Coleoptera: Scarabaeidae)

文献类型： 外文期刊

第一作者： Xie, Ming-Hui

作者： Xie, Ming-Hui;Zhong, Yong-Zhi;Lin, Lu-Lu;Zhang, Guang-Ling;Su, Wei-Hua;Chen, Hao-Liang;Ni, Wan-Li;Qu, Ming-Jing

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关键词： photoperiod; longevity; reproduction; food consumption

期刊名称：ENVIRONMENTAL ENTOMOLOGY （ 影响因子：2.377； 五年影响因子：2.298 ）

ISSN： 0046-225X

年卷期： 2021 年 50 卷 5 期

页码：

收录情况： SCI

摘要： Holotrichia oblita (Faldermann) (Coleoptera: Scarabaeidae) is a major soil insect pest that damages forest trees, crops, and lawns. Adults of H. oblita fly, forage, and mate at night but remain underground during the day. We studied the effect of photoperiod on H. oblita reproduction. H. oblita females laid more eggs at 8:16 (L:D) h and 0:24 (L:D) h than other photoperiods. As the scotophase increased, the preoviposition period decreased and the oviposition period increased. Female longevity exceeded that of males at all photoperiods, and both males and females at 0:24 (L:D) h had the shortest longevity. The number of eggs laid per female increased with increasing food consumption. Females at 8:16 (L:D) h had the greatest food consumption and laid the most eggs, while females at 24:0 (L:D) h had the lowest food consumption and laid few eggs. The food intake of adults increased gradually and decreased slowly after reaching a peak. Females began to lay eggs when their food consumption reached a maximum.These results indicate that a scotophase is necessary for the reproduction of H. oblita. A long scotophase promotes greater oviposition.The effect of photoperiod on reproduction is affected by food intake.

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