News Flash


Posted on: August 7, 2020

Mosquito Pool Tests Positive for WNV; City to Spray Saturday, Sunday & Monday Nights

(August 7, 2020) The City of Frisco will spray for mosquitoes this weekend along the Cottonwood Creek Parkway after receiving confirmation a mosquito pool tested ‘positive’ for West Nile virus (WNV).  Beginning Saturday, August 8, a third party contractor will drive a designated area throughout select neighborhoods fogging for mosquitoes (see attached map). Spraying will happen in the following  neighborhoods:

  • Country Club Ridge at the Trails (Phase 2)
  • The Fairways (Phase 4 and 5)
  • Shaddock Creek Estates (Phase 2 and 5)
  • Heather Ridge Estates (Phase 4)
  • The Trails (Phase 6 and 7)

Treatment will begin at 9 p.m. Saturday, August 8 and continue through 5 a.m. Sunday, August 9.  Spraying resumes Sunday night at 9 p.m. and continues through 5 a.m. Monday, August 10. Spraying will resume a third time on Monday night at 9 p.m. and finish at 5 a.m. on Tuesday, August 11.

“While the city continues to increase surveillance and treat affected public areas, we can’t treat private property, so we need homeowner’s help,” said Julie Fernandez, Environmental Health Supervisor. “Look for standing water outside your home. Be proactive to prevent mosquito breeding in your backyards. Water tends to pool in things like saucers under potted plants or bird baths.”  

Frisco homeowners can help do their part to ‘fight the bite’ by taking the following steps to control mosquitoes indoors and outdoors, as recommended by the Center for Disease Control (CDC):

  • Use screens on windows and doors. Repair holes in screens to keep mosquitoes outdoors.
  • Use air conditioning, if available.
  • Stop mosquitoes from laying eggs in or near water.
    • Once a week empty and scrub, turn over, cover, or throw out items that hold water such as gutters, buckets, planters, toys, pools, birdbaths, flowerpots or trash containers. 
    • Check indoors and outdoors.

This ‘positive’ pool confirmation brings the total to seven (7) in Frisco this year.  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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