Abstract Coptera haywardi (Ogloblin) is a pupal endoparasitoid of tephritid flies with great potential as a biological control agent worldwide as it does not attack other Diptera. To reach its full potential, its mass rearing needs to be enhanced lowering costs. Here, we focused on the use of irradiated pupae of Ceratitis capitata (Wiedemann) stemming from the temperature-sensitive lethal (tsl) Vienna-8 genetic sexing strain (= CcVienna-8), which is mass-produced in the San Juan Medfly and Parasitoid Mass Rearing Facility in Argentina. Exposure of 1- to 2-d-old CcVienna-8 pupae irradiated at 90 Gy to 6- to 8-d-old C. haywardi females at a 10:1 host/parasitoid ratio for 24 h turned out to be highly successful for the rearing of this parasitoid. High radiation doses (90–100 Gy) did not adversely influence fitness parameters of C. haywardi offspring F1, namely lifetime reproductive rates, adult life expectancy, and survival time. Demographic parameters in C. haywardi F1 from irradiated CcVienna-8 young pupae were improved compared to those values recorded from parasitoid originated from nonirradiated CcVienna-8 pupae. These findings will help to enhance parasitoid mass rearing for augmentative releases against medfly in Argentinean fruit-producing regions. Graphical Abstract

中文翻译：

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Coptera haywardi（膜翅目：Diapriidae）的宿主适宜性和健身相关参数在来自 tsl Vienna-8 遗传性别菌株的辐照 Ceratitis capitalta（双翅目：Tephritidae）蛹上饲养

摘要 Coptera haywardi (Ogloblin) 是实蝇的蛹内寄生物，由于它不攻击其他双翅目，因此具有作为世界范围内的生物防治剂的巨大潜力。为了充分发挥其潜力，需要加强大规模饲养以降低成本。在这里，我们专注于使用源自温度敏感致死 (tsl) Vienna-8 遗传性别鉴定菌株 (= CcVienna-8) 的 Ceratitis capitalata (Wiedemann) 蛹阿根廷的寄生蜂群养设施。将 1 至 2 天龄的 CcVienna-8 蛹以 10:1 的寄主/寄生物比以 90 Gy 照射到 6 至 8 天龄的 C. haywardi 雌性 24 小时，结果证明对于饲养这种寄生蜂。高辐射剂量 (90–100 Gy) 不会对 C. haywardi 后代 F1，即终生繁殖率、成年预期寿命和存活时间。与来自未受辐照的 CcVienna-8 蛹的寄生蜂记录的那些值相比，来自受辐照的 CcVienna-8 幼蛹的 C. haywardi F1 的人口统计学参数得到了改善。这些发现将有助于在阿根廷水果产区加强对寄生蜂的大规模饲养，以增加对地中海果蝇的释放。图形概要 这些发现将有助于在阿根廷水果产区加强对寄生蜂的大规模饲养，以增加对地中海果蝇的释放。图形概要 这些发现将有助于在阿根廷水果产区加强对寄生蜂的大规模饲养，以增加对地中海果蝇的释放。图形概要