Bioefficacy of gamma radiation on Spodoptera littoralis (Lepidoptera: Noctuidae)

IF 0.7 4区生物学 Q4 REPRODUCTIVE BIOLOGY Invertebrate Reproduction & Development Pub Date : 2022-04-03 DOI:10.1080/07924259.2022.2075285

Dina Housam Abd El-Monem Ahmed

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Abstract

ABSTRACT The application of nuclear techniques to control one of the most important lepidopteran insect pests: the Egyptian cotton leafworm, Spodoptera littoralis is discussed in this study. All experiments had the objective of finding the dose of gamma radiation capable of causing sterility in the first generations by irradiating the parental generation. For S. littoralis, 6th instar larvae were irradiated with doses of 40, 80, 120 and 160 Gy. The larval survival was 93%, 90%, 88%, 85% and 97% at 40, 80, 120, 160 and 0 Gy, respectively. The pupal survival was 88, 85, 83, 80 and 98% at the same doses. Hence, there was a reduction in survival and emergence to the adult stage after treating S. littoralis larvae with radiation. Also, the latent effects of the tested gamma doses on 6th instar larvae of S. littoralis are recorded. The total number of eggs/female and egg fertility were significantly reduced as compared to control, these effects were increased with increasing the dose. It is concluded that radiation is a promising control method for S. littoralis and other related lepidopteran species.

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伽马辐射对沿海夜蛾的生物药效研究(鳞翅目:夜蛾科)

摘要本研究探讨了核技术在鳞翅目主要害虫之一埃及棉叶虫防治中的应用。所有实验的目的都是通过照射亲代，找出能够在第一代造成不育的伽马辐射剂量。以40、80、120、160 Gy的剂量照射滨海夜蛾6龄幼虫。40、80、120、160和0 Gy时，幼虫存活率分别为93%、90%、88%、85%和97%。在相同剂量下，蛹存活率分别为88%、85%、83%、80%和98%。因此，用辐射处理滨海棘豆幼虫后，其成虫期存活率和羽化率均有所降低。同时，记录了不同剂量对6龄海蛾的潜在影响。与对照组相比，卵/雌总数和卵繁殖力显著降低，这些影响随着剂量的增加而增加。综上所述，辐射是一种很有前途的防治方法。

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来源期刊

Invertebrate Reproduction & Development 生物-动物学

CiteScore

1.90

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Invertebrate Reproduction & Development ( IRD) presents original research on the reproductive and developmental biology of the Invertebrata, both embryonic and postembryonic. IRD welcomes papers reporting significant results obtained using new techniques. Encouraged topic areas include: aquaculture, physiology, biochemistry, functional morphology, phylogeny, behavioural and regulatory mechanisms, including genetic, endocrine and molecular studies. Papers containing qualitative descriptions of reproductive cycles and gametogenesis will not be considered. IRD is published in association with the International Society of Invertebrate Reproduction and Development.