A citywide misting to combat mosquitoes will take place overnight Wednesday in Crystal Lake, according to a news release from the city.
The misting is in response to an increase in mosquitoes testing positive for West Nile virus, according to the release.
On Aug. 3, the McHenry County Department of Health tested an American robin and discovered it was carrying the West Nile virus, county records show.
At least seven mosquito pools in McHenry County tested positive for West Nile virus this summer, according to county data.
Lake in the Hills also recently sprayed for mosquitoes because of an increased concern of the virus.
Under contract with the city of Crystal Lake, Clarke Environmental will apply a synthetic pyrethroid used widely throughout the suburbs of Chicago. The program helps control mosquitoes while in the larval stage by spraying areas such as stormwater catch basins and stagnant water areas.
Residents can monitor potential breeding sites in their yards and alert Clarke to the location by calling the toll-free mosquito hotline at 1-800-942-2555. Questions about the program should be directed to the same number.