Bermuda grass is known for being difficult to control and get rid of, because both the upper and lower parts of the grass have the ability to regrow and spread quickly. But you can kill Bermuda grass with chemicals sprays or by natural methods. If you do not wish to harm your soil, choose to get rid of Bermuda grass quickly with a manual method.
Increase the shade in the area where the Bermuda grass is, because Bermuda needs full sun. Cover the grass with a polythene tarp until the Bermuda grass starts to decay. Mow the grass at 3 to 4 inches so the grass blades shade themselves.
Dry out the ground where the Bermuda grass is, because this variety needs moisture to survive. Turn off your sprinkler or irrigation system for about two weeks before tilling. This step is important because if any moisture reaches the grass roots, it will start to re-grow.
Till the land 4 to 6 inches deep to uproot all the rhizomes of the Bermuda grass. Once they are tilled, the roots will dry out on the ground surface. Turn the soil over repeatedly and remove all clumps of grass and blades that you possibly can, using a rake if necessary.
Separate the Bermuda grass clumps from the dirt clods to conserve as much topsoil as possible for the landscape. You can also set the uprooted grass on a tarp and let dry out for a couple of days, then shake off any excess soil from the clumps.