Repeatedly dig out the roots, runners, and rhizomes by hand
Smother the area with cardboard and a thick mulch layer
Cover the grass with black plastic or a tarp for several weeks
Apply a non-selective herbicide to actively growing Bermuda grass
Repeat herbicide applications as needed to kill regrowth
Use a selective grass herbicide only where it is safe for surrounding plants
Mow frequently to weaken the grass before treatment
Water deeply and infrequently in desired turf to favor other grasses
Overseed or replant with a dense, competitive grass species
Edge and remove creeping runners from borders and garden beds
Solarize the soil during hot weather with clear plastic
Keep the area covered and monitored for new shoots
Remove any surviving stolons and rhizomes promptly
Continue treatment for multiple growing seasons if needed