News Flash


Posted on: September 2, 2022

City to Spray Sept 2-3, as Mosquito Pool Tests Positive for WNV

(September 2, 2022) The City of Frisco received confirmation that one mosquito pool tested ’positive’ this week for West Nile Virus (WNV). The location is near Shaddock Creek Lane in the Shaddock Creek Estates neighborhood.

In response, the city’s third-party contractor will ground spray overnight, September 2 – 3, starting at 9 o’clock tonight, September 2, through 5 a.m. Saturday morning. The overnight schedule is the same on Saturday, September 3, ending 5 a.m. Sunday morning. Weather permitting, spraying will happen in these neighborhoods: Shaddock Creek Estates, Heather Ridge Estates, the Fairways, the Trails and Country Club Ridge at the Trails (see map)

This makes 13 positive mosquito pools in Frisco this season. Check out our GIS Mosquito Dashboard to see the locations. No human cases of WNV are confirmed in Frisco this year.

Frisco residents are urged to ‘Wear, Apply and Remove’ as a precaution against mosquito bites. The precautionary steps are promoted by the Texas Department of State Health Services (DSHS) and outlined below: 

  • WEAR: Wear long sleeves, pants outside at dawn and dusk when mosquitoes are most active.
  • APPLY: Use insect repellants every time you go outside. Approved repellents contain DEET, picaridin or oil of lemon eucalyptus.
  • REMOVE:  Drain standing 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.

In accordance with its Mosquito Surveillance and Response Plan, Frisco began testing mosquito pools on May 1.  For more information on the city’s plan, visit or contact the City of Frisco’s Health & Food Safety Division at 972-292-5304.

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