News Flash


Posted on: July 28, 2017

Three mosquito pools test positive for WNV; various treatments scheduled

(July 28, 2017) The City of Frisco will spray for mosquitoes after receiving confirmation three mosquito pools tested ‘positive’ for West Nile virus (WNV).  Frisco Lakes, remote areas in Panther Creek and Cottonwood Creek Park are scheduled for various treatments beginning today through early Monday morning.       

Beginning today, Friday, July 28, city staff will begin treating remote areas of Panther Creek (click here to view map) with larvicide.    

Beginning tomorrow, Saturday, July 29, a third party contractor will use a utility task vehicle (UTV) to target off-road locations on city-owned property at Cottonwood Creek Park (click here to view map).  Also beginning Saturday, July 29, a third party contractor will drive through the neighborhood, fogging throughout Frisco Lakes (click here to view map).

The treatment schedule for both Cottonwood Creek Park and Frisco Lakes is as follows:  Saturday, July 29, beginning at 9 p.m. through 6 a.m. Sunday, July 30.  Spraying resumes Sunday night, July 30 at 9 p.m. through 6 a.m. Monday, July 31.

These ‘positive’ pool confirmations bring the total to six in Frisco this year. No human WNV cases are confirmed in the city.

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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