STL County Department of Public Health offers tips to reduce this summer’s mosquito presence

Mosquito season is almost upon residents of St. Louis County, and the county’s Department of Public Health wants to inform residents that there are some important preventive measures they can take to protect themselves.

According to the Department of Health, warmer temperatures, stagnant pools of water, and flood debris all combine to form ideal conditions for mosquito breeding. Besides being an annoyance, some species of mosquitoes can transmit diseases, such as West Nile Virus.

The St. Louis County Department of Public Health’s Vector Control Services Program works to reduce the number of mosquitoes in the county, focusing primarily on those species that can transmit disease.

According to Department of Health, Vector Control conducts routine surveillance throughout the county to identify locations with high numbers of mosquitoes as well as testing mosquitoes for the presence of West Nile Virus.

Using data collected throughout the county, Vector Control treats standing water on public property during the day and treats for adult mosquitoes at night to reduce the population of the pesky insects.

The Department of Health also urged residents to eliminate standing water that mosquitos frequently used to reproduce. Since mosquitoes can only develop in water, eliminating their breeding grounds is the best way to reduce their numbers.

Residents of the county are asked to check their property for standing water and do the following:

  • Properly discard or recycle old tires, tin cans, jars, buckets, flower pots, drums, trash, and any other containers, or store them so they will not collect water.
  • Maintain, treat, or drain pools and be sure pool covers do not hold water when in use and are stored in a manner in which they do not collect water while not in use.
  • Cover or store boats, canoes, and wheelbarrows upside down when not in use. Be sure to remove drain plugs so that water does not collect in your boat.
  • Empty small plastic wading pools, children’s play items, flower pot saucers, and bird baths every few days.

Should residents have any further questions regarding mosquitoes or Vector Control services, they may contact St. Louis County Vector Control at 314-615-0680. For more information regarding vectorborne diseases such as West Nile Virus, and others, you may visit the Centers for Disease Control and Prevention (CDC) website at

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