Giant salvinia discovered on Millwood Lake

Official Statements

• U.S. Army Corps of Engineers, Little Rock District, November 12: “The U.S. Army Corps of Engineers is alerting Millwood Lake visitors that giant salvinia, an invasive aquatic plant, was discovered in the lake in late October 2026. Giant salvinia is a threat to our nation’s natural resources capable of disrupting ecosystem quality and functions. Gone unchecked, it could impact Millwood’s environmental stewardship, flood risk management, water supply and recreation missions.”

• U.S. Army Corps of Engineers, Little Rock District, November 12: “USACE personnel are working closely with local and federal partners to contain and control the invasive plant and to limit its spread into Millwood Lake and nearby waterways. Giant salvinia can reproduce rapidly from small plant fragments, potentially restricting water access, displacing native vegetation and affecting aquatic habitat.”

• U.S. Army Corps of Engineers, Little Rock District, November 12: “Visitors should not disturb any floating containment booms or other equipment in the area. Boaters, anglers and waterfowl hunters are encouraged to help prevent the spread of invasive aquatic species by cleaning, draining and drying boats, trailers and equipment before traveling to another body of water.”

• U.S. Army Corps of Engineers, Little Rock District, November 12: “To help prevent the spread of giant salvinia and other aquatic nuisance species: ·Clean: Remove all visible mud, plants and seeds from boats, trailers, vehicles, waders, decoys and other equipment. ·Drain: Remove boat drain plugs and drain live wells, bilges and other areas that may hold water before leaving the launch area. ·Dry: Allow equipment to dry completely before using it in another water body. For more information about giant salvinia on Millwood Lake call 501-747-9012 or 870-898-3343. Updates will be provided as conditions change.”

• U.S. Army Corps of Engineers, Little Rock District, November 12: “Recreation information can be found on the Internet at [www.swl.usace.army.mil](http://www.swl.usace.army.mil), on Facebook at [www.facebook.com/littlerockusace ](http://www.facebook.com/littlerockusace)and on the USACE Little Rock water level mobile app at [www.swl.usace.army.mil/Home/water-control-app/](http://www.swl.usace.army.mil/Home/water-control-app/).”