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Mosquito Norway Rat

Vector Control
Mosquito and rodent control in your neighborhood



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.


Vector Control services include

  • Inspecting property for rat and mosquito infestations.
  • Controlling mosquito breeding sites on public property.
  • Controlling rat infestations on public property.
  • Monitoring for mosquito-borne disease.
  • Educating citizens on vector control measures.

These services are provided at no cost to residents of unincorporated Saint Louis County. The mosquito control program is available by contract in municipalities.

Important Phone Numbers:

St. Louis County Vector Control


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


MO Dept. of Conservation
   For Wildlife Control Only


Bi-State Wildlife Hotline


Important Links:

Eastern Missouri Beekeeprs' Association
   To report swarming bees