Hasan Md Mahbub, Yeasmin Lubna, Athanassiou Christos G, Bari Md Abdul, Islam Md Saiful
Department of Zoology, Rajshahi University, Rajshahi 6205, Bangladesh.
Department of Crop Science and Technology, Rajshahi University, Rajshahi 6205, Bangladesh.
Insects. 2019 Jul 25;10(8):223. doi: 10.3390/insects10080223.
We evaluated possible improvements to the mass rearing of the larval parasitoid racon hebetor (Say) (Hymenoptera: Braconidae) on irradiated host wax moth Galleria mellonella L. and Indian meal moth (Hübner) (Lepidoptera: Pyralidae) larvae. The use of irradiated G. mellonella and larvae at the dose of 150 Gy proved useful for enhancing the parasitism and adult emergence of due to the absence of negative repercussions on parasitoid development. Overall, parasitism was increased as the host larvae was irradiated with higher doses, while significantly higher parasitism was recorded at 150 and 300 Gy compared to lower doses. The female parasitoids preferred the irradiated larvae and significantly higher numbers of larvae were parasitized compared with non-irradiated larvae. The results also showed that irradiated larvae of G. mellonella served better as hosts for as compared with irradiated larvae of The implementation of these findings would be helpful for improving the mass production of parasitoids and the effectiveness of releases of biocontrol agents for the control of stored product pests.
我们评估了利用经辐照的寄主大蜡螟Galleria mellonella L.和印度谷螟Plodia interpunctella (Hübner)（鳞翅目：螟蛾科）幼虫大规模饲养幼虫寄生蜂黄足黑守瓜Racon hebetor (Say)（膜翅目：茧蜂科）的可能改进措施。结果表明，使用剂量为150 Gy的经辐照大蜡螟和印度谷螟幼虫有助于提高黄足黑守瓜的寄生率和成虫羽化率，因为这对寄生蜂的发育没有负面影响。总体而言，寄主幼虫接受的辐照剂量越高，寄生率越高，与较低剂量相比，在150 Gy和300 Gy时记录到的寄生率显著更高。雌性寄生蜂更喜欢经辐照的幼虫，与未辐照的幼虫相比，被寄生的幼虫数量显著更多。结果还表明，与经辐照的印度谷螟幼虫相比，经辐照的大蜡螟幼虫作为黄足黑守瓜的寄主效果更好。这些研究结果的应用将有助于提高寄生蜂的大规模生产以及用于控制储藏物害虫的生物防治剂释放的有效性。
