The City of Frisco has confirmed that one mosquito pool tested positive for West Nile virus (WNV) this week. In response, the city’s third-party contractor will conduct overnight ground spraying starting at 9 p.m. on Saturday, November 7, and ending at 5 a.m. on Sunday, November 8.
A second round of spraying is scheduled for Sunday night, November 8, ending at 5 a.m. on Monday, November 9, weather permitting.
The spraying will take place in the Miramonte, Prairie View, and Collinsbrook Farm neighborhoods. This positive test brings the total number of positive mosquito pools in Frisco to 18 for the year. The city maintains a GIS Mosquito Dashboard where residents can view the locations of current and previous positive pools.
As of now, no human cases of West Nile virus have been confirmed in Frisco in 2026.
Residents are urged to follow the “Wear, Apply and Remove” precautions promoted by the Texas Department of State Health Services (DSHS) to prevent mosquito bites.
These steps include wearing long sleeves and pants during dawn and dusk hours, using insect repellents containing DEET, picaridin, or oil of lemon eucalyptus when going outside, and removing standing water from bird baths, French drains, clogged gutters, plant saucers, and splash blocks. Mosquitoes that carry WNV breed in stagnant water.
Frisco tests for mosquito pools from May 1 through November 15 in accordance with its Mosquito Surveillance and Response Plan. Additional information regarding the city’s plan and prevention methods is available at FriscoTexas.gov/Mosquitoes. Residents may also contact the City of Frisco’s Health & Food Safety Division at 972-292-5304 for further details.
