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<p><i>Eocanthecona furcellata</i> (Wolff) (Hemiptera: Pentatomidae) is an effective natural enemy of agricultural and forestry pests. Investigating the effects of low-temperature storage on the physiology, biochemistry, and predation preference of <i>E. furcellata</i> can facilitate its field release and adaptation to low-temperature environments. Herein, we investigated the effects of 0-, 15-, and 30-day storage of <i>E. furcellata</i> at 12&#xa0;°C on its physiology, biochemistry, and predation characteristics. Our results showed that fat, protein, and glucose contents gradually decreased with increasing storage time, while sorbitol and trehalose levels in males fluctuated. The self-density of <i>E. furcellata</i> influenced its predation on <i>Spodoptera frugiperda</i> (J.E. Smith) (Lepidoptera: Noctuidae) under each treatment. When presented simultaneously with <i>S. frugiperda</i> 4th instar larvae and <i>Tenebrio molitor</i> (Linn) (Coleoptera: Tenebrionidae) pupae, both male and female <i>E. furcellata</i> adults exhibited a prey selectivity index (<i>D</i>) of &gt; 1 for <i>S. frugiperda</i> 4th instar larvae across all groups. These results suggest that low-temperature storage has no significant negative effects on predation capacity of <i>E. furcellata</i>.</p>

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Effects of low-temperature storage on the physiology, biochemistry, and predation ability of Eocanthecona furcellata (Wolff) (Hemiptera: Pentatomidae)

  • 期刊论文

  • 发表日期：

    2025年12月12日

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  • Ling-Yi Liu,
  • Chun-Ni Pan,
  • Meng-Shuang Yao,
  • Wei-Zhou,
  • Zhi-Li Li,
  • Hao-Jun Li,
  • Wen-Long Chen

摘要

Eocanthecona furcellata (Wolff) (Hemiptera: Pentatomidae) is an effective natural enemy of agricultural and forestry pests. Investigating the effects of low-temperature storage on the physiology, biochemistry, and predation preference of E. furcellata can facilitate its field release and adaptation to low-temperature environments. Herein, we investigated the effects of 0-, 15-, and 30-day storage of E. furcellata at 12 °C on its physiology, biochemistry, and predation characteristics. Our results showed that fat, protein, and glucose contents gradually decreased with increasing storage time, while sorbitol and trehalose levels in males fluctuated. The self-density of E. furcellata influenced its predation on Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) under each treatment. When presented simultaneously with S. frugiperda 4th instar larvae and Tenebrio molitor (Linn) (Coleoptera: Tenebrionidae) pupae, both male and female E. furcellata adults exhibited a prey selectivity index (D) of > 1 for S. frugiperda 4th instar larvae across all groups. These results suggest that low-temperature storage has no significant negative effects on predation capacity of E. furcellata.