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Google is seeking regulatory approval to release up to 32 million sterile mosquitoes in California and Florida as part of an ambitious effort to curb the spread of mosquito-borne diseases including dengue, Zika, chikungunya, West Nile virus, and malaria.
The proposal is currently under review by the US Environmental Protection Agency, which is considering an experimental permit that would allow the release of up to 16 million mosquitoes per year over a two-year period. A decision is expected following a public comment period that concludes on June 5, according to The Guardian.
The project is part of Google’s Debug initiative, a program focused on controlling mosquito populations through biological methods rather than chemical pesticides. The strategy relies on releasing male mosquitoes carrying Wolbachia, a naturally occurring bacterium that prevents viable offspring from being produced when the insects mate with wild females.
Because male mosquitoes do not bite humans or transmit disease, the approach is designed to reduce mosquito populations without increasing public health risks. Repeated releases over time can gradually suppress local populations of Aedes aegypti, one of the world’s most dangerous mosquito species and a primary carrier of dengue, Zika, yellow fever, and chikungunya.
What makes the initiative particularly unusual is the role of advanced technology. Originally developed under Verily, Alphabet’s life sciences division, Debug uses automation, sensors, and AI-powered computer vision systems to identify and separate male mosquitoes from females at scale before release.
The company says these systems allow mosquitoes to be deployed with greater precision, ensuring the right number of insects are released in targeted areas while minimizing the risk of accidentally introducing biting females into the environment.
The underlying science, however, is far from experimental. The sterile insect technique has been used for decades to control agricultural pests, and Wolbachia-based mosquito suppression programs have gained traction worldwide as governments search for alternatives to insecticides that are becoming less effective due to growing resistance.
If approved, the program would represent one of the largest technology-driven mosquito control efforts ever attempted in the United States and could serve as a test case for how AI, automation, and biotechnology might be combined to tackle persistent public health challenges.