The cities of Grapevine and Southlake reported positive detection of mosquitoes carrying the West Nile virus Sept. 5 and Sept. 7, respectively.

Positive samples originated from the 2700 block of Whitby Lane and the 2600 block of Briarwood Drive in Grapevine, according to a city announcement. City employees scheduled mosquito control ground spraying within a half-mile radius of the 2700 block of Whitby Lane on Sept. 6 and within a half-mile radius of the 2600 block of Briarwood Drive on Sept. 6-8.

Meanwhile, the Tarrant County Public Health Department notified Southlake officials that two mosquito traps from the 3200 block of Woodland Drive and the 2200 block of Shady Oaks Drive also tested positive for the West Nile virus, prompting the city to schedule sprayings to take place Sept. 8-10. Chemicals in the spray are designed to specifically target mosquitoes and to dissipate quickly in sunlight.

Colleyville also reported positive testing of mosquitoes for the West Nile virus earlier this summer, in August. Samples came from the 200 block of McDonwell School Road and the 3200 block of Scarborough Lane, and nearby residents were notified via the city’s CodeRED alert system. City staff scheduled larvicide treatments for both areas.

To reduce the risk of exposure, the Tarrant County Public Health Department reminds residents to:
• Wear long sleeves and pants
• Dump standing water
• Keep vegetation trimmed
• Apply Environment Protection Agency-approved insect repellent