Spraying for Mosquitoes

Where does the Vector Control Program spray?

The Wichita Falls – Wichita County Public Health District uses truck mounted ULV sprayers to kill adult mosquitoes. The Health District sprays in all parts of the City of Wichita Falls and in unincorporated areas of Wichita County. These areas are divided into 47 “Mosquito Zones”. Zones numbered 1 to 32 are within the City of Wichita Falls limits. Zones numbered 50 to 64 are zones outside of the City limits. The Health District uses a combination of information derived from mosquito trap results, citizen complaints, and field surveillance to determine which areas of its jurisdiction are priority for mosquito spraying.

For mosquito spray requests, please call 940-761-7890.

Night spray

Due to natural limitations on time, staff, and funding, spray missions cannot be completed in all zones of our jurisdiction every night. Instead, the vector control program must focus on its core mission to control mosquito borne disease. In Wichita County, the major mosquito borne disease threat is West Nile Virus. In the southern United States, the most common species of mosquito known to transmit West Nile Virus is Culex quinquefasciatus, a mosquito that is prevalent in Wichita County. Most of the vector control program’s surveillance and control work targets the Culex quinquefasciatus mosquito, and its presence around the county helps dictate where mosquito spraying is prioritized. Zones are ranked by priority and color coded for convenience. The map is updated every Tuesday.

Mosquito Zones are ranked using the following criteria:

  • EMERGENCY PRIORITY - when trapped mosquitoes from a given zone test positive for West Nile Virus
  • HIGH PRIORITY - when a trap collects an excessive amount of Culex quinquefasciatus (>25 females in a single night)
  • PRIORITY - when a zone receives an excessive amount of citizen requests for spraying
  • LOW PRIORITY - zones that were sprayed within the last week
Map Legend

***The map is updated every Tuesday***

Web Map Link Picture
**The Health District does not provide mosquito spraying services in Burkburnett, Iowa Park, Electra, Sheppard Air Force Base, or on private property.**