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We estimated the appropriate dose of X\u2010ray sterilization for <jats:italic>S. frugiperda<\/jats:italic> using an X\u2010ray irradiation instrument to investigate environmentally acceptable control techniques, laying the framework for future applications of sterile insect technology (SIT) to manage the pest environmentally\u2010friendly.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>This study is the first to investigate the effects of X\u2010ray irradiation on the growth, development, survival, reproduction, and flight of <jats:italic>S. frugiperda<\/jats:italic>. The results showed that irradiation with 50\u2013400\u2009Gy 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 &gt;\u2009350\u2009Gy. After irradiation with a sub\u2010sterilizing dose of 250\u2009Gy, the parental sterility rate was &gt;\u200985%, and the sterility traits could be passed on to their offspring, resulting in a continuous decrease in the population of F<jats:sub>1<\/jats:sub> and F<jats:sub>2<\/jats:sub> generations.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSION<\/jats:title><jats:p>Our laboratory experiments theoretically confirmed the feasibility of SIT for controlling <jats:italic>S. frugiperda<\/jats:italic> in the field using X\u2010ray radiation. This study provides a theoretical basis for future regional pest management strategies. \u00a9 2022 Society of Chemical Industry.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ps.6903","type":"journal-article","created":{"date-parts":[[2022,4,9]],"date-time":"2022-04-09T04:30:05Z","timestamp":1649478605000},"page":"2806-2815","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Effects of X\u2010ray irradiation on the fitness of the established invasive pest fall armyworm <i>Spodoptera frugiperda<\/i>"],"prefix":"10.1002","volume":"78","author":[{"given":"Shan","family":"Jiang","sequence":"first","affiliation":[{"name":"Key Laboratory of Economic and Applied Entomology of Liaoning Province, College of Plant Protection Shenyang Agricultural University  Shenyang Liaoning China"},{"name":"State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection Chinese Academy of Agricultural Sciences  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