Effects of X-ray irradiation on the fitness of the established invasive pest fall armyworm Spodoptera frugiperda

文献类型： 外文期刊

第一作者： Jiang, Shan

作者： Jiang, Shan;Yang, Xian-Ming;Wu, Kong-Ming;Jiang, Shan;Yang, Xue-Qing;He, Li-Mei;He, Wei;Zhao, Hui-Yuan

作者机构：

关键词： Spodoptera frugiperda; sterile insect technology (SIT); X-ray; radiation biology

期刊名称：PEST MANAGEMENT SCIENCE （ 影响因子：4.462； 五年影响因子：4.688 ）

ISSN： 1526-498X

年卷期： 2022 年 78 卷 7 期

页码：

收录情况： SCI

摘要： BACKGROUND Spodoptera frugiperda has spread to Africa, Asia, and Oceania, posing a serious threat to global agriculture. We estimated the appropriate dose of X-ray sterilization for S. frugiperda using an X-ray irradiation instrument to investigate environmentally acceptable control techniques, laying the framework for future applications of sterile insect technology (SIT) to manage the pest environmentally-friendly. RESULTS This study is the first to investigate the effects of X-ray irradiation on the growth, development, survival, reproduction, and flight of S. frugiperda. The results showed that irradiation with 50-400 Gy had no significant effect on pupal eclosion, but females were more sensitive than males in terms of reproductive parameters, especially when doses of radiation were > 350 Gy. After irradiation with a sub-sterilizing dose of 250 Gy, the parental sterility rate was > 85%, and the sterility traits could be passed on to their offspring, resulting in a continuous decrease in the population of F-1 and F-2 generations. CONCLUSION Our laboratory experiments theoretically confirmed the feasibility of SIT for controlling S. frugiperda in the field using X-ray radiation. This study provides a theoretical basis for future regional pest management strategies. (c) 2022 Society of Chemical Industry.

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