The evolution of the sterile insect technique from concept to global application

The sterile insect technique (SIT) is a species-specific, environment-friendly and cost-effective method for controlling insect pests and disease vectors. It involves colonization and mass-rearing of the target species, sterilization, typically by ionizing radiation, and systematic release of sterile insects, preferably males, into the target area. Released sterile males induce reproductive failure in wild populations, leading to suppression, containment, prevention of establishment, or local eradication of a target insect pest population. First demonstrated over a century ago, SIT has evolved into a robust and widely adopted tool within area-wide integrated pest management (AW-IPM) programs. It has been successfully applied against several major agricultural and veterinary pests, often achieving high returns on investment. In the context of accelerating climate change and global species invasions, further development and deployment of SIT are essential. Future efforts should focus on enhancing cost-effectiveness, operational scalability, and integration with complementary technologies for sustainable pest and vector management.