Florida Districts Adopted New Mosquito Control Tactics

State agencies have turned to radiation and genetic modifications to combat rising mosquito-borne disease risks.

Updated on Oct. 5, 2026 in Biotech

Isometric editorial illustration of a mosquito on a clean laboratory pedestal, depicting modern biological mosquito control methods. — Florida mosquito control districts have expanded the use of radiation and genetic modification techniques to combat rising dengue infection risks. AI Illustration. Upload story photo >

Live Poll

Do you support the use of genetically modified insects to control disease-carrying mosquito populations?

Florida mosquito control districts have expanded their use of innovative biological methods to manage insect populations. These tactics follow a record-breaking year for locally-acquired dengue infections, including a death reported in Tampa Bay in September 2026.

Why it matters

Districts are pursuing alternatives to traditional chemical controls as they lose efficacy against mosquitoes thriving in increasingly warm and wet weather. These measures aim to curb the transmission of viruses like dengue by reducing the overall mosquito population.

Lee County laboratories currently raise 1 million mosquitoes per week, while irradiated males are processed in quantities of 1,000 per 1-by-1-inch box. Scientists utilize fluorescent powder to mark sterile insects for tracking following exposure to radiation.

The players

Lee County Mosquito Control District

This local authority operates laboratories that raise millions of mosquitoes to test biological control methods.

Florida Keys Mosquito Control District

This agency serves as a primary U.S. testing site for genetically modified mosquito trials.

Flyttr

This private firm develops genetically modified insects and is currently awaiting federal regulatory approval for commercial sales.

Mosquito Mate

This entity provides specialized biological mosquito control solutions through public-private partnerships.

The details

Technicians sterilize male mosquitoes by exposing them to radiation in cold rooms, while other programs release insects carrying the Wolbachia bacteria to disrupt reproduction. These programs face scrutiny from some residents, as evidenced by a petition against genetically modified releases that garnered 250,000 signatures.

Radiation technology was pioneered on Florida screwworms in 1951.
Lee County began releasing Wolbachia-infected mosquitoes in 2017.
Flyttr released genetically modified mosquitoes in the Florida Keys from 2021 to 2023.
A locally-acquired dengue death occurred in Tampa Bay in September 2026.

The Tech Race

Modern mosquito control programs follow the precedent of the 1951 radiation project used on screwworms in Florida. These biological interventions represent a transition away from reliance on legacy chemical pesticides toward more targeted, reproductive-disruption technologies.

Residents may observe increased releases of marked mosquitoes in their neighborhoods as districts attempt to curb disease transmission. While these methods aim to reduce the prevalence of local illnesses, they require public transparency and continued monitoring of environmental effects.

The takeaway

Innovative mosquito control methods are rapidly evolving to address the public health threats posed by warming climates and insecticide resistance. Residents should monitor local health advisories to stay informed about the specific control tactics active in their communities.

What happens next

Flyttr is waiting for the Environmental Protection Agency to complete its data review, which will determine if the sale of genetically modified mosquitoes can be approved.