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Grapevine mosquito samples test positive for West Nile

🕐 2 min read

Four mosquito samples in the city of Grapevine have tested positive for carrying the West Nile virus, city officials confirmed this week.

Positive mosquito samples were detected in the 300 block of Dallas Road, the 2700 block of Whitby Lane, the 2600 block of Briarwood Drive and 1500 block of North Dooley Road.

Mosquito-control ground spraying occurred on Thursday night within a half-mile radius of the 2600 block of Briarwood and 1500 block of North Dooley. The 2700 block of Whitby and 300 block of Dallas Road also were sprayed within a half-mile radius on Thursday and are planned for more spraying beginning at 10 p.m. Friday Aug. 5 and Saturday Aug. 6.

While the insecticide is approved by the Environmental Protection Agency for treatment, the city advises residents to take the following precautions during spraying:

Residents in the spray areas should avoid contact with the spray by staying indoors; keep windows and doors closed during spraying; remain in their vehicles with the windows up and the air conditioner on until the trucks pass and the spray is no longer visible; remain alert for trucks and not follow them; cover ornamental ponds and birdbaths; bring pets inside for the night; bring in pet dishes or cover them.

Residents who come in contact with the spray are advised to wash the affected area thoroughly with soap and water. The spray breaks down quickly in the presence of sunlight and has no residual effect, the city said in a news release.

Those with health problems such as asthma should take precautions as directed by family physicians, if necessary. Grapevine residents are urged to take precautions against mosquito bites by reducing outdoor activity during evening and nighttime hours. Residents who are outside during these times should cover their arms and legs and apply a mosquito repellant that contains DEET.

Residents are encouraged to eliminate any standing water to prevent mosquito breeding and the spread of West Nile virus. Breeding places for mosquitoes include swimming pools that are not kept clean, stagnant ponds, pet watering dishes, birdbaths, potted plants, old tires, empty containers, toys, clogged rain gutters and French drains. Standing water should be eliminated promptly.

Complimentary mosquito “dunks” that may be placed in standing water that cannot be drained are available at the Municipal Service Center, 501 Shady Brook from 7a.m. to 4 p.m., Monday-Friday. To report standing water or mosquito problems, Grapevine residents may call 817-410-3330. More information on mosquito control is available at

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