Mosquito control in Modesto
Modesto has a public mosquito district, and it is worth knowing about. If your yard still has a problem, a pest control company can look at what is left.
Calls are answered early morning to late evening
How to recognize the problem
Mosquitoes need still water to breed. The larvae, called wigglers, grow in ponds, tree holes, bird baths, old tires and the saucers under plant pots. UC IPM says the whole cycle can take a week or less in summer, so a saucer you overlook for a couple of weeks can start a new batch.
Only females bite. If you are getting bitten at home at dawn and dusk, start by walking the yard with a look at anything that can hold water.
Canals, sprinklers and two public districts
Stanislaus County has two abatement districts, and the Tuolumne River is the rough line between them. East Side Mosquito Abatement District covers about 540 square miles north of the river, including Modesto, Empire, Oakdale, Riverbank and Salida. You can reach it at (209) 522-4098, and its site has a service request form. Turlock Mosquito Abatement District serves Ceres, Hughson, Newman, Patterson, Turlock and other towns, at (209) 634-1234.
UC IPM says Culex mosquitoes are the main carriers of West Nile virus, and that about 1 in 150 infected people develop a serious illness. That is good reason to clear water and report a neglected pool or pond to the district.
What a yard visit usually involves
Every independent company works differently. This is the general shape, so you know what to ask about.
Walking the property
The company looks for standing water, overgrown shade and any neighbors' sources it can see.
Removing what it can
Dumping and fixing water sources comes first. UC IPM says outdoor sprays give only temporary relief.
Treatment if you choose it
If you agree to a treatment, ask what it is, how often it would be repeated, and how to prepare. Ask how long to stay out of the yard and how to protect a pond or vegetable bed.
Screens and doors
Expect a reminder to repair window and door screens.
When to call
- You have emptied the water you can find and the district has been contacted, and bites continue.
- Mosquitoes are getting into the house and you cannot find how.
- You want a second set of eyes on a big or shady yard.
Common questions
Is it the district's job or mine?
Both, in different ways. Districts watch for mosquitoes across their area and respond to service requests. Water on your own property is yours to deal with. A pest control company works for you on your property.
What can I do today?
Tip out saucers, change bird bath water weekly, keep gutters clear, avoid overwatering the lawn and fix torn screens. UC IPM also recommends repellents containing DEET or picaridin outdoors.
Sources: UC IPM: Mosquitoes; East Side Mosquito Abatement District; Turlock Mosquito Abatement District. Checked 4 November 2026.
Seeing it now? Make the call.
You will be connected with an independent pest control company that works in your area. Say what you have seen and where, then ask about the visit. Nothing is decided until you agree to it with the company.
Calls are answered early morning to late evening
Calls may be recorded. See the referral disclosure and privacy policy.