Trichogrammatoidea eldanae Viggiani (Hymenoptera: Trichogrammatidae) is an egg parasitoid of several lepidopteran insect pests in West Africa. In this study, we assessed the suitability of three different host species viz; Eldana saccharina Walker (Lepidoptera: Pyralidae), Sesamia calamistis Hampson (Lepidoptera: Noctuidae) and Corcyra cephalonica Stainton (Lepidoptera: Pyralidae) as potential host for mass-rearing T. eldanae. This was done by determining the biological parameters of the parasitoid on the different host species. The effect of rearing host species on the performance of T. eldanae was also investigated. The parasitoid successfully developed on all tested host species. However, the biological parameters including fecundity, number of adults emerged per parasitised egg, progeny and developmental period varied significantly with host species. The number of parasitised eggs and the progeny per female were highest on Corcyra cephalonica (80 ± 10.72 and 103.66 ± 13.44, respectively) and there was no significant difference between E. saccharina (35.44 ± 7.11 and 38.44 ± 9.01, respectively) and S. calamistis (32.33 ± 5.94 and 57.33 ± 10.02, respectively). The shortest developmental period (9.17 ± 0.026) was recorded on C. cephalonica and the longest on E. saccharina (9.20 ± 0.051). The highest intrinsic rate of increase (0.37 ± 0.02) was recorded on C. cephalonica and the lowest (0.32 ± 0.01) was recorded on E. saccharina. Moreover, the host species used to rear T. eldanae did not affect its reproductive potential. It resulted from this study that C. cephalonica was the most suitable host and can be used to mass-rear T. eldanae for augmentative purpose to control cereal stemborers.

中文翻译：

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三种鳞翅目宿主物种大规模饲养卵寄生蜂 Trichogrammatoidea eldanae Viggiani（膜翅目：Trichogrammatidae）对谷类螟虫生物防治的适宜性

Trichogrammatoidea eldanae Viggiani（膜翅目：Trichogrammatidae）是西非几种鳞翅目害虫的卵寄生蜂。在这项研究中，我们评估了三种不同宿主物种的适用性，即：Eldana saccharina Walker (Lepidoptera: Pyralidae)、Sesamia calamistis Hampson (Lepidoptera: Noctuidae) 和 Corcyra cephalonica Stainton (Lepidoptera: Pyralidae) 作为大规模饲养 T. eldanae 的潜在宿主。这是通过确定不同寄主物种上寄生蜂的生物学参数来完成的。还研究了饲养宿主物种对 T. eldanae 性能的影响。寄生蜂在所有测试的宿主物种上成功发育。然而，生物学参数包括繁殖力、每个寄生卵出现的成虫数量、后代和发育时期因宿主物种而异。Corcyra cephalonica 的寄生卵数和每个雌性后代的数量最高（分别为 80 ± 10.72 和 103.66 ± 13.44），而 E. saccharina（分别为 35.44 ± 7.11 和 38.44 ± 9.01）和 S 之间没有显着差异calamistis（分别为 32.33 ± 5.94 和 57.33 ± 10.02）。C. cephalonica 的发育期最短 (9.17 ± 0.026)，E. saccharina 的发育期最长 (9.20 ± 0.051)。最高的内在增长率 (0.37 ± 0.02) 记录在 C. cephalonica 上，最低 (0.32 ± 0.01) 记录在 E. saccharina。此外，用于饲养 T. eldanae 的宿主物种不会影响其繁殖潜力。这项研究的结果是 C.