ROSWELL, Ga. Mosquito traps at two popular Roswell parks have tested positive for West Nile virus, prompting Fulton County health officials to conduct targeted mosquito treatment around both locations.
The positive mosquito traps were identified at Roswell Area Park and Garrard Landing Park, according to a public health notice issued by the City of Roswell after notification from the Fulton County Board of Health.
Important distinction: the notice concerns positive mosquito samples. It does not report a confirmed human West Nile virus case in Roswell.
Which Roswell parks are affected?
The two positive trap locations are on opposite sides of Roswell, making the notice relevant to residents across the city.
What did Roswell and Fulton County announce?
The City of Roswell said the Fulton County Board of Health notified the city that mosquito traps at both parks tested positive for West Nile virus. Fulton County’s mosquito control contractor, Vector Disease Control International, was scheduled to treat the affected areas on Tuesday, Sept. 1, and Wednesday, Sept. 2, weather permitting.
Treatment is scheduled for 9 p.m.
The treatment plan calls for spray trucks to begin at approximately 9 p.m. and operate for about one hour each night. Treatment is focused within a quarter-mile radius of the positive mosquito trap locations.
According to the City notice, the trucks travel at approximately 15 mph through the designated areas. Treatment is conducted at dusk to reduce disruption to pollinators, and the City says the treatment is safe for people and pets.
What happens next?
The Fulton County Board of Health will continue mosquito testing after the initial treatment. The City says that if additional positive results are detected, informational materials and signage may be placed on-site with recommended precautions.
Regular mosquito surveillance is conducted by the county in open public park areas. That surveillance is what identified the positive traps in Roswell.
How Roswell residents can reduce mosquito-bite risk
- Use an EPA-registered insect repellent when outdoors.
- Wear long sleeves and pants when possible, particularly around dawn and dusk.
- Empty standing water from flowerpots, buckets, birdbaths, gutters and other outdoor containers.
- Make sure window and door screens are in good condition.
What Roswell residents should know right now
The immediate takeaway is straightforward: mosquito traps at two Roswell parks tested positive for West Nile virus, treatment has been scheduled around those locations, and health officials will continue surveillance afterward. The notice does not identify a human West Nile case in Roswell.
Residents seeking additional health information can contact the Fulton County Board of Health at 770-520-7500 or visit FultonCountyBOH.com.
Sources: City of Roswell public health notice; Fulton County Board of Health; FOX 5 Atlanta reporting published Sept. 1, 2026.
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