Hammerhead Worm
Georgia Gardener and AJC contributor Walter Reeves wrote last year .
“Hammerhead worms, Bipalium kewense , are an invasive species of planaria. They feed on earthworms, so they are considered a noxious pest that should be destroyed when discovered. Sprinkling salt on their body works well; so does picking it up with a stick and dropping it on a paper towel, where it will dehydrate. Don’t try to kill it by chopping it into pieces. Like most planaria, a hammerhead worm can grow a complete body from individual pieces. It normally drops sections of its tail into hospitable locations to increase the population,” he advised.
Others suggest wearing gloves to pick up the worm, then placing it in a sealable bag or container with vinegar or salt. Be sure to wash your hands afterward, just to be safe.
The animal is carnivorous and known to feast on native earthworms and other soil-dwelling invertebrates, but it has few predators itself, making the species difficult to control.