Santee Cooper Will Treat Invasive Plants

Santee Cooper Will Treat Invasive Plants

Santee Cooper Will Treat Invasive Plants

MONCKS CORNER, S.C. – Beginning Oct.9, 2022, Santee Cooper plans to treat by helicopter up to 500 acres of giant cutgrass and mixed stands of the invasive aquatic plant giant salvinia. Teams will be applying treatment in the Persanti Island, Hickory Top and Jacks Creek areas of Lake Marion. 

Giant salvinia, an invasive plant originating from Brazil, was found on the lake system in 2017 and has since rapidly spread from upper Lake Marion to other areas of both Lake Marion and Lake Moultrie. Giant cutgrass has also created dense stands restricting public access in the area historically known as the Super Flats. 

The treatment application includes EPA-approved aquatic herbicides, which pose no water-use restrictions in the areas treated. The treatment will improve public access and help prevent further spread of giant salvinia to other areas of the lakes system. 

This is a cooperative project with South Carolina Waterfowl Association, Ducks Unlimited, South Carolina Department of Natural Resources and Santee Cooper. Inquiries regarding the operation should be directed to Santee Cooper at You can learn more about aquatic plant control at 

Author Santee Cooper

Santee Cooper

Santee Cooper is South Carolina’s largest power provider, the ultimate source of electricity for 2 million people across the state, and one of America’s Best Midsize Employers as named by Forbes. Through its low-cost, reliable and environmentally responsible electricity and water services, and through innovative partnerships and initiatives that attract and retain industry and jobs, Santee Cooper helps power South Carolina. To learn more, visit and follow #PoweringSC on social media.