10/21/2026
For the second week in a row the total number of mosquitoes rose over the previous week by almost 20%. This rise had much to do with black salt marsh mosquitoes, Ochlerotatus taeniorhynchus, invading areas along the Savannah River. Culex nigripalpus, known as the Florida Saint Louis Encephalitis mosquito, was also well represented in last week’s trap counts. No West Nile virus samples were recorded last week, although we are still awaiting results on some samples. To date, 39 positive samples have been found from 17 different locations within our service area. Remember to call or place a service request through our website: https://mosquitocontrol.chathamcountyga.gov/ to report any mosquito problem in your area. If you would like to receive advance notifications concerning our aerial mosquito treatments taking place in your area of the county, please register on the county’s Smart911 system (if you have not already done so) : https://www.smart911.com/smart911/ref/reg.action?pa=chathamcounty
