The San Gabriel Valley Mosquito and Vector Control District will begin mosquito treatment efforts on March 17 in areas affected by the Eaton Fire. The campaign focuses on unmaintained swimming pools and standing water sources that could become breeding grounds for disease-carrying mosquitoes.

According to District officials, a single unmaintained pool can produce up to three million mosquitoes in just one month. To combat this risk, vector control technicians will apply larvicides, mosquito control products, and mosquitofish where necessary to prevent the spread of West Nile virus and St. Louis encephalitis.

District personnel are actively engaging with property owners at the Altadena Disaster Resource Center, offering guidance on mosquito prevention and assessing water sources within the burn area. Since some residents may have limited access to their properties, officials stress the importance of community cooperation in reporting and addressing standing water.

Property owners in the affected area are encouraged to:

1. Request mosquito control services from the District.
2. Enroll in the SGVpools – Eaton Response program to report their pool status.

Under California Health and Safety Code (§§ 2060-2061), standing water that supports mosquito production is considered a public nuisance, and property owners are responsible for addressing it.

To support those affected by the fire, the District’s Board of Trustees has partnered with Los Angeles County’s Direct Assessment Disaster Relief Program to waive the $20 per-parcel assessment fee for Fiscal Year 2024-2025. Refunds will be issued to those who have already made payments, and no action is required from eligible property owners.