Brive in France Tests Sterile Insect Technique Using X-Ray Irradiation to Control Tiger Mosquitoes, Preliminary Results Show Nearly 60% Sterility Rate in Mosquito Eggs
The city of Brive-la-Gaillarde in the Nouvelle-Aquitaine region of France is using the Sterile Insect Technique (SIT) to control tiger mosquitoes. Since May 2025, the city has been working with the Montpellier-based company Terratis, releasing male mosquitoes that have been treated with X-ray irradiation and rendered incapable of reproduction, in order to reduce the tiger mosquito population. The core of this method is to allow sterile males to mate with wild females, causing the females to lay eggs that cannot hatch. Although it may appear that mosquitoes are still being released in active mosquito areas, the released individuals are males, which do not bite humans. As of October 31, 2025, Brive has deployed nearly 11 million sterile male mosquitoes across 58 release points covering more than 100 hectares, with a weekly release volume of approximately 400,000...
2026-08-23
