Mosquito season is officially on in Aurora, and the city is not waiting for the bites to rack up. Truck-mounted fogging is set to roll through neighborhoods this week after a run of warm, wet weather created prime breeding conditions, according to city crews. The ramped-up response follows regional surveillance that has already turned up West Nile virus positive mosquito traps in nearby counties, with officials urging residents to cut down standing water and take basic precautions.
The Street Maintenance Division reports it will treat roughly 12,000 catch basins with Natular larvicide, run five light traps that are checked three times a week, and go after adult mosquitoes using Anvil®2+2 ultra-low-volume fogging in spots where traps capture more than 30 female mosquitoes, according to the City of Aurora. Spraying is scheduled for dusk, and residents are asked to report large standing-water sites so crews can inspect and, if needed, treat problem areas.
Where West Nile Has Turned Up Nearby
The city's public post breaks down recent surveillance totals that show West Nile positive mosquito traps in DuPage (17), Will (2) and Kane (1) counties, and points residents to the municipal mosquito page for more detail. The DuPage County Health Department has confirmed early-season positive mosquito pools and bumped the county's Personal Protection Index to Risk Level 1 while staff continue trap testing.
Statewide Context And Local Confirmations
Will County officials have confirmed a West Nile virus positive mosquito batch collected in Mokena earlier this season, a finding that has been reported by local outlets and local health authorities. The Illinois Department of Public Health maintains a statewide surveillance dashboard and urges the public to follow its three-part guidance to limit exposure as mosquito activity ramps up.
How To Protect Yourself
The city's post and online guidance lean on familiar but effective steps: get rid of standing water around homes, refresh birdbaths and kiddie pools weekly, fix torn window and door screens, wear light-colored long sleeves and pants during dawn and dusk, and use an EPA-registered insect repellent when you know you will be outside for a while. The notice also recommends using outdoor fans on patios, adding pumps to stagnant water features, or stocking ornamental ponds with mosquito-eating fish where that makes sense.
Fogging is framed as a targeted, neighborhood-level tool and is carried out at dusk to hit active adult mosquitoes while limiting broader exposure. People with respiratory sensitivities are advised to close windows during operations. For neighborhood alerts or to request an inspection of standing water, residents can call 311 or check the city's mosquito page for more information and sign-up options.
