As warmer weather and outdoor activities return to Greater Los Angeles, so do mosquitoes, and with them, the risk of vector-borne diseases.

Working year-round behind the scenes, the Greater Los Angeles County Vector Control District  (GLACVCD/District) plays a vital role in protecting the health of nearly six million residents.

This year, the District is proud to launch its 2025 summer campaign, “Guardians of Greater L.A.,” to raise public awareness of its mosquito control services and empower residents with practical knowledge to reduce mosquito risks in their communities.

“Our District is proud of the service it has been providing to Greater Los Angeles communities over the past seven decades,” said GLACVCD General Manager Susanne Kluh. “Our work has always been grounded in science, driven by innovation, and made stronger through the relationships we’ve built with the communities we serve.”

Running through November 2025, the “Guardians of Greater L.A.” campaign highlights the essential public health work the District performs year-round.

Through rigorous surveillance, targeted control operations, and proactive community outreach, GLACVCD reduces vector populations and prevents the spread of diseases like West Nile virus and Dengue.

Established in 1952 as the Southeast Mosquito Abatement District, GLACVCD was formed after a citizen petition aimed to address mosquito problems arising from the Los Angeles River.

Since then, the District has significantly expanded its service area and capabilities.

Today, in addition to mosquito control, it also provides non-biting midge and black fly control programs, ensuring a broader reach in protecting community well-being from other vectors.

“The campaign reinforces the District’s mission to protect public health from the world’s deadliest animal, the mosquito,” added Kluh. “We want every resident and business to know they’re not alone in this fight. Working together, we can significantly strengthen the impact of our mosquito control efforts.”

Mosquito control is a shared responsibility, and residents are encouraged to take the following actions to reduce the risk of mosquito-borne illness in their communities:

Eliminate standing water in clogged gutters, rain barrels, discarded tires, buckets, watering troughs, or anything else that holds water for over a week.

• Ensure that swimming pools, spas, and ponds are properly maintained.
• Change the water in pet dishes, bird baths, and other small containers weekly.
• Request mosquitofish from your local vector control district for placement in ornamental ponds.
• Wear CDC-recommended insect repellent when outdoors where mosquitoes may be present.
• Report neglected (green) swimming pools in your neighborhood to your vector control district.

For more information, residents and businesses can contact the Greater Los Angeles County Vector Control District at (562) 944-9656, or by clicking here. 

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