How Google's 32-million Mosquito Project Could Change California's Battle Against Dengue

Google took net searches to nan adjacent level. Could it do nan aforesaid for mosquito control?

The Silicon Valley-based tech elephantine is seeking to merchandise up to 64 cardinal sterilized antheral mosquitoes successful California and Florida complete 2 years, according to a notice successful nan Federal Register. It’s portion of an eager effort to curb nan diseases nan insects spread.

Google says it tin harness exertion to optimize a conception that’s been astir for decades, but hasn’t been successfully scaled pinch mosquitoes to rein successful disease.

For example, nan process often involves separating nan insects by activity to isolate nan males. Currently, that’s done manually and tin beryllium clip consuming. Google says it’s “developing caller technologies that harvester sensors, algorithms and caller engineering to return advantage of unsocial aspects of mosquito biology to quickly and accurately benignant males from females.”

The institution besides says it’s building package and monitoring devices to guideline releases of sterile males, and its scientists and engineers are creating sensors, traps and package to determine which areas request to beryllium treated and treated again.

Called Debug, nan task targets Aedes aegypti mosquitoes, which are autochthonal to Africa but person infiltrated nearly half of California’s counties since first being detected successful nan authorities successful 2013. Not only do they thrust residents nuts pinch itchy bites, but they tin transportation a number of perchance superior diseases, including dengue, Zika, chikungunya and yellowish fever.

The scheme is to infect males — which don’t wound — pinch a germs called Wolbachia, which efficaciously renders them sterile. They are past released to activity retired chaotic females and mate. Females will laic eggs but these won’t hatch, which experts opportunity drives down nan organization complete time.

There are different methods to sterilize antheral mosquitoes. Vector power districts serving Los Angeles, Orange and San Bernardino counties have irradiated males and released them successful caller years.

Early results are promising. Two neighborhoods treated by nan Greater Los Angeles Vector Control District saw a much than 80% reduction successful nan female Aedes aegypti population successful 2024 and 2025.

But arsenic nan Greater L.A. territory seeks to grow its operations, cost poses a problem. Last year, business owners signaled they weren’t consenting to ammunition retired much each twelvemonth to make it happen. District officials are still hoping to sway them.

If Google moves forward, it wouldn’t beryllium nan first clip it has been progressive successful specified an effort. In 2018, nan institution conducted a large-scale proceedings successful Fresno County, releasing 14.4 cardinal Wolbachia-infected males successful 3 neighborhoods.

“At highest mosquito season, nan number of female mosquitoes was 95.5% little successful merchandise areas compared to non-release areas, pinch nan astir geographically isolated vicinity reaching a 99% reduction,” a 2020 paper reported.

Google has applied for a licence from nan Environmental Protection Agency to transportation retired nan releases successful California and Florida, for which nan national agency is presently seeking comments earlier deciding whether to assistance approval.

The institution intends to merchandise up to 16 cardinal Wolbachia-infected males successful California, and nan aforesaid successful Florida, per twelvemonth for 2 years, nan Federal Register announcement said, for a full of 64 million.

Urgency to tamp down nan invasive mosquito organization successful California has accrued since 2023, erstwhile nan authorities logged its first locally acquired dengue cases — meaning group were infected successful their communities, not while traveling. The pursuing year, nan number of locally acquired cases ballooned to 18, pinch 14 of them successful Los Angeles County.

A study published past week successful “The Lancet Regional Health — Americas” recovered that astir 18.2 cardinal Californians — chiefly successful nan Central Valley, L.A. and San Diego areas — unrecorded successful regions wherever conditions are astir apt suitable for section dengue transmission.

“Under mean scenarios of ambiance warming and municipality description , an further 4.1 cardinal residents whitethorn beryllium astatine consequence by mid-century,” according to nan study led by UC Berkeley’s Lisa Couper. Researchers statement nan existent and early consequence of transmission remains debased isolated from during summertime successful nan Central Valley and Southern California.

“I’m beautiful overmuch successful favour of whichever [sterile insect technique] attack gets america nan illness prevention and nuisance power we request and astatine nan lowest price,” Susanne Kluh, wide head of nan Greater L.A. County Vector Control District, said successful an email.

She said her territory went pinch radiation because it was nan only approved method erstwhile they wanted to motorboat their pilot, and that it’s “also nan only 1 wherever immoderate institution does not make a profit successful nan middle.” However, she wouldn’t norm retired utilizing Wolbachia if it turned retired to beryllium nan astir affordable option.