Update from Clarke Mosquito Control (July 2026)

The heavy rainfall and warm weather at the start of July created ideal conditions for multiple large hatches of floodwater mosquitoes. These mosquitoes are not associated with disease transmission, but they are aggressive biters and can travel several miles from where they emerge.

Mosquito control efforts began at the larval stage, and adult mosquito applications are being timed to target peak populations.

Residents can help reduce mosquito annoyance by:

• Reduce: Eliminate standing water where mosquitoes breed (bird baths, flower pots, tires) and fix tears in window screens to keep mosquitoes out of your home. Avoid outdoor activity between dusk and dawn when mosquitoes are most active.
• Repel: Apply an EPA-registered insect repellent containing DEET, picaridin, oil of lemon eucalyptus, or IR3535.
• Report: Report areas of stagnant water or flooded yards that may produce mosquito breeding grounds at www.clarkeportal.com. Residents can also receive notifications about adult mosquito control applications or report high mosquito annoyance at the Clarke portal. 

For questions or to report standing water concerns, please contact 847-381-6000 or info@northbarrington.org.