Please be aware that all department facilities will be closed on Thursday, November 23rd, 2017 and Friday, November 24th, 2017 in observance of Thanksgiving Holidays.

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Mosquito Norway Rat Vector Control

Rodent and mosquito 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:

Saint Louis County Vector Control

(314) 615-0680

Saint Louis County Highway and Public Works
   Dead Animals on Roadway

(314) 615-1111

MO Dept. of Conservation (Powder Valley)
   For Wildlife Control Only

(314) 301-1500

Bi-State Wildlife Hotline

(636) 492-1610

Important Links:

Eastern Missouri Beekeeprs' Association
   To report swarming bees