City to Conduct Ground Spraying for West Nile Virus July 29-30, 2025

Published on July 29, 2025

Editor's Note: Due to technical difficulties, the City of Arlington’s contractor was not able to conduct targeted ground spraying as planned on Wednesday evening for two of six locations within a half-mile radius of mosquito traps that tested positive for West Nile Virus. The contractor will now conduct targeted ground spraying between the hours of 9 p.m. Thursday, July 31 and 5 a.m. Friday, Aug. 1 at these locations:

• East Mayfield Road at New York Avenue
• Sherry Street at East Pioneer Parkway

By the Office of Communication

Tarrant County Public Health notified the City of Arlington that five of its mosquito trap samples have tested positive for West Nile Virus.

Following guidance by Tarrant County Public Health, the City’s contractor will conduct two nights of targeted ground spraying within a half-mile radius of the positive mosquito trap locations listed below:

• Park Hill Drive at Mossy Oak Street Map(PDF, 448KB)
• Sherry Street at East Pioneer Parkway Map(PDF, 515KB)
• Douglas Court at North Cooper Street Map(PDF, 484KB)
• Kelly Elliott Road at West Sublett Road Map(PDF, 532KB)
• East Mayfield Road at New York Avenue Map(PDF, 2MB)

Additionally, the TCPH confirmed one mosquito trap in the Town of Pantego tested positive for West Nile Virus. Even though the positive trap location was in Pantego, the recommended targeted ground spraying distance from the trap location listed below will include portions of the City of Arlington.

• Shady Valley Drive at West Pioneer Parkway Map(PDF, 512KB)

Targeted ground spraying will be conducted in these six areas between 9 p.m. and 5 a.m. on Tuesday, July 29 and Wednesday, July 30, weather permitting. This targeted ground spraying schedule is intended to reduce the known virus-infected adult mosquito population as quickly as possible.

Targeted Ground Spraying

From May through October, the City of Arlington traps mosquitos to be tested by Tarrant County Public Health for the West Nile and St. Louis Encephalitis Viruses. These weekly test results help the City identify areas where

to conduct targeted ground spraying with an ultra-low volume application of water-based permethrin product to reduce adult mosquito populations to prevent human infections.

If samples collected from a mosquito trap test positive for three weeks in a row, the City’s contractor will spray within a half-mile radius of the trap site over two consecutive nights. Arlington could decide to conduct targeted ground spraying around a trap location after only one week or two weeks of positive test results when additional key risk factors are present:

• Mosquito abundance (a positive virus test result with more than 50 mosquitoes in a trap)
• Proximity to any recent human West Nile Virus cases
• Scheduled outdoor events during dusk or nighttime hours near a positive mosquito trap location
• High West Nile Virus infection rate in collected mosquito sample

For more information about the targeted ground spraying, please call the City of Arlington's Action Center at 817-459-6777. Download the City's free Ask Arlington app today to report standing water or mosquito infestations on private property.