The mountain laurel (Sophora secundiflora) is an evergreen shrub that produces lavender flowers and red seeds. It grows in the southwestern United States and favours U.S. Department of Agriculture hardiness zones 6b through 8a. Mountain laurels are easily infected with various species of insects, including sophora worms, which, if infected badly enough, can necessitate removing the bush. Once the mountain laurel is cut down, the stump and root system need to be removed or else suckers will sprout from them and another bush will grow in its place.
Dig a hole that is 2 feet in diameter and 1 foot deep around and under the stump of the Mountain Laurel shrub. The entire root system needs to be loosened, so dig deeper and farther around if needed.
Put on your gloves and grasp the stump from the top. Pull vertically until the stump is removed from the ground. Reach into the hole and remove as many of the remaining roots as possible. Discard with your yard waste.
Prepare the herbicide according to instructions. Spray it into the hole to kill any roots that remain in the ground. Fill in the hole with soil.