Put on garden gloves and hand pull as much Golden Carpet sedum out of the ground as you can. Golden Carpet sedum has shallow roots and can easily be hand pulled from dry soil.
Use a garden hoe to remove the Golden Carpet sedum and remaining roots. A garden hoe will also easily lift the sedum plants from the ground. Using a hoe to turn up the roots of the sedum will expose them to sun, and heat will kill any remaining roots.
Mix a herbicide that contains 2,4-D, triclopyr, MCPP, dicamba or MCPA according to the directions. Add a surfactant to the mixture to improve the adhesion of the herbicide to the sedum. Use a pump sprayer to apply the herbicide mixture. These chemicals can kill Golden Carpet sedum that has crept into your lawn without killing the grass. It may take more than one application.
Apply a herbicide containing glyphosate to kill a broad area of Golden Carpet sedum. Glyphosate is a herbicide chemical that is nonselective and kills any plant it comes in contact with. It is very effective in killing sedum.