The U.S. Army Corps of Engineers is gearing up to spray herbicide across roughly 5,500 acres of Arkabutla Lake as part of ongoing dam repair work, and plenty of DeSoto County residents are not thrilled about it. The plan has stirred worries about wildlife, water quality and recreation, while also shining a fresh spotlight on the lake’s long-running repair and management headaches.
Why the Corps Says Vegetation Has To Go
In 2023, USACE identified an area of concern at Arkabutla Dam and has since kept the reservoir at much lower pool elevations while crews carry out interim repairs. That drop in water levels left thousands of acres of lakebed exposed and gave woody aquatic plants a chance to take hold.
As outlined by the USACE Vicksburg District, the agency has identified a recommended plan and released a Draft Environmental Assessment for public review. The public comment period on that draft runs through July 25.
Locals Push Back On Aerial Spraying Plan
DeSoto County residents have not exactly embraced the scale or timing of the planned aerial herbicide treatment. According to the Daily Memphian, locals are pressing for more details about which products will be used, how they will be applied, and what safeguards will be in place.
Neighbors quoted in that coverage raised alarms about possible impacts on fish and wildlife, public recreation and local water quality, and questioned how the Corps intends to monitor conditions before and after the spray.
How The Corps Says The Spray Will Work
In a July 17 news release, the USACE Vicksburg District said the aerial application will cover about 5,500 acres of Corps-managed property to knock back woody aquatic vegetation on the exposed lakebed.
The agency said the contract was awarded to Provine Helicopter Service of Greenwood and that crews will use broadcast, aquatic-approved herbicides. According to the release, the work will be coordinated with the Mississippi Department of Environmental Quality and the U.S. Fish and Wildlife Service and is expected to start sometime after Aug. 1, once lake elevations and weather line up for the most effective application window.
The Corps also stated that campgrounds and most recreation areas are expected to remain open while aircraft operate over the lake.
Contract Details And Planned Timeline
Public contracting postings for the job list GovTribe entry solicitation W912EE26QA026, which shows the Corps sought aerial-application services with an anticipated performance window beginning Aug. 1 and running into September.
The same postings outline the types of aquatic herbicide products and application methods that were under consideration for the lakebed treatments. Full technical specifications are detailed in the solicitation documents.
What Lake Visitors Can Expect
The Corps says visitors should expect to see aircraft in the area during the application period but does not anticipate widespread closures of day-use sites or camping areas. For reservation changes and closure updates, the agency directs the public to check Recreation.gov along with the Arkabutla field office listing on state sites such as Visit Mississippi, which provide address and contact information.
With the Draft Environmental Assessment still under review and the treatment window set for sometime after Aug. 1, the next few weeks will show whether the Corps’ outreach calms the backlash or adds fuel to it. Residents and anglers quoted by local outlets say they plan to watch closely for pre and post application monitoring data and for clear timelines before any aerial spraying begins.
