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The unprecedented local operation targets pools that became high-risk breeding sources due to fire-related damage, inaccessibility, or loss of utilities.
“Each untreated pool can produce thousands of mosquitoes every week,” said SGV Mosquito District Manager Jason Farned. “With the help of California Governor’s Office of Emergency Services, our partner agencies, and the tireless dedication of our team, we are now able to treat every non-functional pool in the burn area. This rapid and effective response will help prevent a second public health crisis in the aftermath of the Eaton Fire.”
The West Covina-based operation represents the first response of its kind in the region, treating pools that pose risks for diseases like West Nile virus and dengue.
Treatment efforts began in mid-March with approximately 700 priority pools before expanding to cover all affected pools using extended residual larvicides designed to last up to 90 days.
California’s Office of Emergency Services supplied pesticide, personal protective equipment, and personnel.
The Greater Los Angeles County Vector Control District deployed additional specialists, while the Orange County Mosquito and Vector Control District provided mosquito fish for long-term biological control.
“Supporting the San Gabriel Valley Mosquito and Vector Control District shows the state’s commitment to recovery and protecting public health,” said Nancy Ward, California Governor’s Office of Emergency Services Director. “Our collaboration helps reduce the risk of mosquito-borne illnesses and directly improves the quality of life for the community.”
SGV Mosquito is one of five vector control Districts in Los Angeles County, routinely monitoring stagnant water sources and testing mosquitoes for diseases in both Altadena and Pasadena.
“We’re a small agency with a big mission. Through collaboration and a proactive operation, we’re protecting fire survivors, recovery workers, and vulnerable communities from mosquitoes and the diseases they can transmit,” said Farned.
Early indicators show mosquito abundance remains below average with no West Nile virus detected. However, the risk remains as summer temperatures rise.
SGV Mosquito urges residents to tip out stagnant water weekly, toss unused containers, and use insect repellent containing CDC-recommended ingredients including Picaridin, DEET, Oil of Lemon Eucalyptus (or PMD), or IR3535.
Residents can contact the District at (626) 814-9466 or SGVmosquito.org.
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