If you're experiencing a high number of mosquitoes around your home or property, you can request service.

• A technician will contact you within 3 business days of your request.
• During the visit, we will inspect your property for mosquito sources and eliminate any we find.
• We'll provide tips on preventing bites and what sources to watch for.
• If needed, your property will be treated to reduce mosquito populations.

Unmaintained pools can produce up to 3 million mosquitoes in one month, creating a serious risk for the transmission of West Nile virus. This includes in-ground swimming pools, kiddie pools, and above-ground pools that are dirty, even if the pool is only holding a small amount of water.

• You may request help with your own pool or report an unmaintained pool nearby.
• Reports can be made anonymously. Even if you provide your name, we never disclose the source of a tip.
• Pool inspections and treatments are completely free to all Merced County residents.

Mosquitofish are natural predators of mosquito larvae and help keep certain water features mosquito-free. We provide mosquitofish at no cost for:

• Animal water troughs
• Ornamental ponds (without existing fish)
• Unfiltered fountains

Please note: Because mosquitofish are not native, we cannot place them in rivers, canals, creeks, or any body of water that flows into natural waterways.

Dead birds, specifically corvids (crows, ravens, jays, magpies, etc.), can be an early sign of West Nile virus activity in an area.

• Dead birds must be reported to the Vector-Borne Disease Section of the California Department of Public Health (CDPH).
• If the bird is eligible for testing and needs to be picked up, CDPH will contact us to collect it.
• Birds are tested to help with disease surveillance and to target mosquito control efforts where they are most needed.

Report a dead bird to CDPH by clicking here or calling 877-968-2473.