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Vector Control Services

  • Rodent and rat infestations
  • Mosquito breeding sites, mosquito-borne diseases and West Nile virus 
  • Stinging insects problems
  • Educating citizens on vector control measures

We will visit your residence to help you with an issue ONLY if the problem is in the public right of way.  We provide phone consultation and occasional onsite visits for an issue that is on your private property.  

If your issue is urgent and it resides on your personal property, please secure the services of a private pest control service.

Vector Control services in the public right of way are provided at no cost to residents of unincorporated St. Louis County. 

Our mosquito control program is available by contract in municipalities.

Helpful Phone Numbers

St. Louis County Vector Control


St. Louis County Highway/Public Works
Dead Animals on Roadway


Missouri Department of Conservation
Wildlife Control Only


Bi-State Wildlife Hotline


Swarming Bee Problems

Eastern Missouri Beekeepers' Association (To report swarming bees)


If you are interested in seeing what general section of the county is sprayed for mosquitoes on a particular night of the week, click here. If you would like to hear specific information listing where spraying will occur tonight, call 314-615-4284 (615-4BUG). A recorded message is updated daily between 4:00 p.m. and 6:00 p.m. Spraying begins at sunset.