News Flash


Posted on: May 13, 2022



SHELBY COUNTY, TN – The Shelby County Health Department’s Mosquito Control Program routinely traps and tests mosquitoes for the presence of West Nile Virus (WNV) as a part of a comprehensive program to limit the spread of the virus through Shelby County. 

Mosquito Control activities begin in February each year, with the application of larvicides to ditches and standing bodies of water in order to kill mosquito larvae and decrease the adult mosquito population. These treatments are a very effective way of reducing mosquito populations. Please view our ArcGIS story map that details our mosquito control prevention work throughout the year.

Additionally, Mosquito Control conducts truck-mounted spraying to control the spread of adult mosquitoes that carry West Nile virus. No mosquitoes positive for West Nile Virus have yet been detected, but in order to proactively control mosquito populations, Mosquito Control will spray in zip codes where West Nile Virus was first detected in mosquitoes in 2022. Weather permitting*, SCHD will conduct truck-mounted spraying of EPA-approved insecticides, in the following ZIP codes according to this schedule:

Monday, May 16, 2022:

8:00-11:00 p.m.  

ZIP Codes: 38002, 38128, 38135, 38018, 38120, 38028, 38134

Route Map:

Tuesday, May 17, 2022:
 8:00-11:00 p.m.  

 Zip Codes: 38128, 38135

Route Map:

Wednesday, May 18, 2022:          

8:00-11:00 p.m.  

ZIP Codes: 38002, 38128, 38135, 38133, 38134, 38016

Route Map:

Thursday, May 19, 2022: 

8:00-11:00 p.m.  

ZIP Codes: 38107, 38103, 38105, 38104, 38108, 38112

Route Map:

Individuals with chronic health problems including asthma or other lung conditions may want to remain indoors during the time of spraying. Citizens who do not want their residences to be sprayed should contact the Vector Control Program by emailing or calling (901) 222-9715. 

* To ensure the insecticide is most effective, the scheduled spraying will be canceled if any of the following weather conditions are present for the majority of the schedule spray time:

  • Rain chance of 65% or greater 
  • Wind speeds 11mph or greater 
  • Temperature less than 60 degrees Fahrenheit  

Follow @ShelbyTNHealth on Twitter, Facebook, and Instagram for the most up-to-date cancellations of any scheduled sprayings. 


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