Yuan Jinge, Xiang Dong, Yang Haozhuo, Zhang Huanhuan, Chen Hanqiu, Liu Huai, Li Yaying
Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River, College of Plant Protection, Southwest University, Chongqing, China.
Yibin Academy of Southwest University, Yibin, China.
J Econ Entomol. 2025 Jun 13;118(3):1051-1060. doi: 10.1093/jee/toaf040.
The stink bug, Eocanthecona furcellata Wolff (Hemiptera: Pentatomidae) shows significant promise as a biological control agent against lepidopteran pests in tropical and subtropical areas. However, securing suitable food remains a persistent issue for the mass rearing of this beneficial insect. To understand how different feeding strategies impact reproductive success, we evaluated their effects on critical life table parameters and ovary development using a range of feeding options: natural prey Spodoptera litura Fabricius (Lepidoptera: Noctuidae) and Spodoptera exigua Hubner, alternative prey Tenebrio molitor Linnaeus (Coleoptera: Tenebrionidae), and an advanced artificial diet. E. furcellata fed on S. litura had the highest fecundity (326.96 eggs) and net reproduction rate (86.04 offspring). Moreover, those fed T. molitor exhibited the highest survival rate during the nymph stage (61.86%). Among all tested treatments, ovarian tube length reached its peak on the 14th day following the emergence of the adult. The group fed S. litura had the longest average length (4.021 mm), followed by those fed S. exigua (3.986 mm) and T. molitor (3.904 mm). Notably, E. furcellata fed on S. exigua displayed the highest number of fully developed follicles between days 3 and 21 after emergence. This research underscores the efficacy of utilizing natural prey, especially S. litura, and alternative prey, T. molitor, for enhancing the reproductive success and survival of E. furcellata, providing critical insights for optimizing mass-rearing techniques and informing integrated pest management strategies that leverage this beneficial insect for effective biological control across diverse agricultural systems.
稻绿蝽（学名：Eocanthecona furcellata Wolff，半翅目：蝽科）在热带和亚热带地区作为鳞翅目害虫的生物防治剂具有显著前景。然而，为这种益虫大量饲养获取合适的食物仍然是一个长期存在的问题。为了解不同的取食策略如何影响繁殖成功率，我们使用一系列取食选择评估了它们对关键生命表参数和卵巢发育的影响：天然猎物斜纹夜蛾（学名：Spodoptera litura Fabricius，鳞翅目：夜蛾科）和甜菜夜蛾，替代猎物黄粉虫（学名：Tenebrio molitor Linnaeus，鞘翅目：拟步甲科），以及一种高级人工饲料。以斜纹夜蛾为食的稻绿蝽具有最高的繁殖力（326.96枚卵）和净繁殖率（86.04个后代）。此外，以黄粉虫为食的个体在若虫阶段表现出最高的存活率（61.86%）。在所有测试处理中，卵巢管长度在成虫羽化后的第14天达到峰值。以斜纹夜蛾为食的组平均长度最长（4.021毫米），其次是以甜菜夜蛾为食的组（3.986毫米）和以黄粉虫为食的组（3.904毫米）。值得注意的是，羽化后第3至21天，以甜菜夜蛾为食的稻绿蝽发育完全的卵泡数量最多。这项研究强调了利用天然猎物，尤其是斜纹夜蛾，以及替代猎物黄粉虫来提高稻绿蝽繁殖成功率和存活率的有效性，为优化大量饲养技术提供了关键见解，并为综合害虫管理策略提供了信息，这些策略利用这种益虫在不同农业系统中进行有效的生物防治。
