News Flash


Posted on: June 11, 2021

'Wear, Apply & Remove' as Two Mosquito Pools Test Positive for WNV; City to Spray June 12 & 13

(June 11, 2021) The City of Frisco urges residents to remember to ‘Wear, Apply and Remove’ as a precaution against mosquito bites after receiving confirmation two mosquito pools tested ’positive’ this week for West Nile Virus (WNV). In response, the city will ground spray in the area around Oakbrook Park/Hickory Creek (see map PDF) and in The Trails neighborhood (see map PDF). 

A third-party contractor will apply treatment at 9 p.m. Saturday, June 12, and continue through 5 a.m. Sunday, June 13.  Spraying resumes Sunday night at 9 p.m. and will finish at 5 a.m. on Monday, June 14. 

"All the rain we received in the past month, followed now by the warm, steamy weather, provides the perfect environment for mosquitoes to lay eggs in standing water," said Julie Fernandez, Environmental Health Supervisor.  "Even with the city enacting ground spraying, we need residents to protect themselves, their family and property against mosquito bites by remembering to do these three steps: wear, apply and remove."

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 for mosquitoes May 1. No human cases of the virus are confirmed in Frisco this year.

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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