News Flash


Posted on: September 14, 2017

Two Mosquito Pools Test Positive for West Nile virus; Frisco to Spray Saturday, Sunday Nights

(September 14, 2017) The City of Frisco will spray for mosquitoes after receiving confirmation two mosquito pools tested ‘positive’ for West Nile virus (WNV). 

Beginning Saturday, September 16, a third party contractor will drive a designated area west of Teel Parkway (between Lebanon Road and Stonebrook Parkway) fogging for mosquitoes (see attached map).

The city contractor will also drive a designated area between Warren Parkway and Town and Country Boulevard, east of Legacy Drive, fogging for mosquitoes (see attached map).

Treatment will begin at 9 p.m. Saturday and continue through 6 a.m. Sunday, September 17.  Spraying resumes Sunday night at 9 p.m. and continues through 6 a.m. Monday, September 18.

These ‘positive’ pool confirmations bring the total to 16 in Frisco this year. Collin County and Denton County health officials have each confirmed one human WNV case in Frisco this season.

The City of Frisco supports four precautionary habits promoted by the Texas Department of State Health Services.

  • Use approved insect repellents: Use repellent every time you go outside. Approved repellents contain DEET, picaridin or oil of lemon eucalyptus. Follow label instructions.
  • Drain standing water: Drain water that collects in bird baths, French drains, clogged gutters, saucers under potted plants and ‘splash blocks’ (at end of gutter down spout). The mosquitoes that carry WNV breed in stagnant water.
  • Wear long sleeves, pants at dawn and dusk (when mosquitoes are most active).
  • Use air conditioning: Make sure doors and windows are screened – and those screens are intact.

In accordance with its plan, Frisco began testing for mosquitoes May 1.

For more information on the city’s Mosquito Surveillance and Response Plan, visit or contact the City of Frisco’s Health & Food Safety Division at 972-292-5304.

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