Mosquito control spraying in North Knoxville will start Aug. 14 and will occur between 8 p.m. and 10 p.m., weather permitting. Residents are encouraged to stay inside during this time, and pets can come inside or be kept in the backyard.

The Knox County Health Department reported reported 2025’s first two cases of La Crosse, a virus spread by mosquitos last month. So far in 2025, the CDC is reporting 10 cases across the U.S. Nearly a third of those are in Tennessee, which also has the most cases of all the states listed.

The Monroe County Health Department has confirmed that a batch of mosquitoes tested positive for West Nile Virus, and residents are urged to avoid areas where mosquitoes are found and take measures to prevent them from breeding around their homes.