The good news: the mosquitos collected so far this year are disease-free.
Now that mosquitoes in portions of the northwest and southwest sides have tested positive for the West Nile virus spraying will take place overnight.
The cooler spring so far means mosquito season has been delayed, but with the recent floods and warming temperatures, your back yard could soon be a haven for the buzzing, bloodsucking pests.
The pace of West Nile virus is picking up dramatically in Illinois.
Officials were spraying to kill mosquitos in Skokie on Wednesday, as part of a continuing effort to contain the spread of the West Nile Virus.
Experts have warned 2012 could be a bad year for West Nile — and it is.
The common house mosquitoes, which can carry West Nile Virus, are out in full force about three weeks early, because of a warm winter and the current hot and relatively dry conditions, which promote their development.
Record rainfall levels in July could leave Chicago area residents itching.