News Flash


Posted on: July 31, 2020

Mosquito Pool Tests Positive for WNV; City to Spray Saturday, Sunday Nights, August 1 - 2

(July 31, 2020) The City of Frisco will spray for mosquitoes this weekend near Cottonwood Creek Parkway after receiving confirmation a mosquito pool tested ‘positive’ for West Nile virus (WNV).  

Beginning Saturday, August 1, a third-party contractor will use a utility task vehicle (UTV) to target the greenbelt areas around the Cottonwood Creek Parkway (see attached map)

Treatment will begin at 9 p.m. Saturday and continue through 5 a.m. Sunday, August 2.  Spraying resumes Sunday night at 9 p.m. and continues through 5 a.m. Monday, August 3.

This ‘positive’ pool confirmation brings the total to six in Frisco this year.

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 can 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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