Overview
- Verily, an Alphabet‑owned research unit, has applied to the U.S. Environmental Protection Agency to run field trials that would release millions of male mosquitoes in Florida and California this week.
- The proposal would release only non‑genetically modified male mosquitoes infected with the naturally occurring bacterium Wolbachia so that eggs from matings with wild females typically fail to develop and the biting female population falls.
- Coverage differs on scale — some reports cite about 32 million mosquitoes for Florida over two years while others cite up to 64 million total for both states — and residents in proposed release zones would not have an individual legal opt‑out.
- Verily’s Debug program uses automated breeding, robotics and AI image‑recognition to sort sexes at scale in South San Francisco before organizing timed releases.
- The request comes as U.S. health officials reported rising West Nile cases in 2025, prior Wolbachia programs in Fresno, Hawaii and Singapore are cited as evidence of effect, and the EPA will weigh public comments before approving, modifying, or denying the trials.