News Flash


Posted on: October 4, 2018

Two Mosquito Pools Test Positive for WNV; Frisco to Spray Saturday, Sunday Nights

(October 4, 2018) The City of Frisco will treat for mosquitoes after receiving confirmation two mosquito pools tested ‘positive’ for West Nile virus (WNV).

Beginning Saturday, October 6, a third-party contractor will drive the area north of Panther Creek and Teel Parkways (near Northwest Community Park), fogging for mosquitoes (see attached map).

The city contractor will also drive a designed area south of Eldorado Parkway, between Independence and Custer, fogging for mosquitoes (see attached map).

In both cases, treatment will begin at 9 p.m. Saturday and continue through 6 a.m. Sunday, October 7. Spraying resumes Sunday night at 9 p.m. and continues through 6 a.m. Monday, October 8. This treatment plan is weather permitting.

“While we know that ‘nuisance’ mosquitoes are active right now, we’re seeing a relatively low number of the type of mosquitoes that can carry West Nile virus in our traps,” said Julie Fernandez, Frisco’s Environmental Health Supervisor.

“At this point in the season, with warm temperatures still prevalent, we’re choosing to ground spray to reduce the number of targeted adult mosquitoes.”

These ‘positive’ pool confirmations bring the total to four in Frisco this year. No human cases have been reported 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. Weekly testing will continue through the second week of November.

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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