Ionizing irradiation can be used as an alternative to chemical fumigants for disinfestation of cut flowers, agricultural products, seeds, foods, medical products, and spices. In this study, we investigated the effect of electron beam irradiation on reproduction and development in Spodoptera litura. When irradiated to the adults, there was no difference in fecundity. However, egg hatching was considerably decreased. When irradiated to the pupae, fecundity was decreased as dose increased and wing deformity of newly emerged adults was increased as time passed. When irradiated to the larvae, developmental period and pupa deformity was significantly increased. In order to investigate the molecular mechanism of sterility and abnormal development, we performed quantitative real-time PCR and SDS-PAGE.

• Seung-Hwan Yun(Departement of Plant Medicine, Chungbuk National University)
• Dae-Hoon Jeong(Departement of Plant Medicine, Chungbuk National University)
• Hyun Kyung Kim(Departement of Plant Medicine, Chungbuk National University)
• Hyun-Na Koo(Departement of Plant Medicine, Chungbuk National University)
• Gil-Hah Kim(Departement of Plant Medicine, Chungbuk National University)