 The brown-marmorated stink bug, Haleomorphahalis, is a pentatomid bug of eastern Asian origin that became an economically relevant pest in the Eurasian and American continents. Management of this species is limited to use of chemical insecticides, which is an ineffective method due to the strong adaptability of the target pest. Sterilization using the sterile insect technique, SIT, may be a viable alternative, but further research is needed to determine its effectiveness. In this study, we investigated the feasibility of releasing mass-trapped overwintering males, which had been irradiated with high-energy photons as competitive sterile males in an SIT program. The results were promising, as the irradiation did not affect the longevity, fecundity, or fertility of the males, nor did it negatively impact their ability to mate. Additionally, behavioral tests indicated that the irradiation did not significantly alter the quality of the sterile males. Further research is necessary to assess the mating competitiveness of these sterile males in semi-field and field conditions. This article was authored by Gerardo Riscelli, John Franco and Fora, David Maxwell Suckling and others. We are article.tv, links in the description below.