Goat weed is a common weed most often seen in warm climates. It's found in pastures and other open spaces of land. Like most other weeds, it can become invasive if it grows freely for too long. It's a stubborn weed and is notorious for being difficult to kill, so a strong chemical fertilizer is often a recommended choice for control. When properly used, the herbicide will kill the weeds and get your land back to its original appearance.
Rinse out a garden sprayer with water to remove any residual herbicides, pesticides or fertilizers that may be in it. Fill the tank about 10 percent full with water and spray it until the tank is empty to ensure the hose is clean as well.
Fill the garden sprayer with a 2,4-D herbicide. Depending on your particular product, you may need to dilute it with water, so read the application instructions.
Spray the herbicide directly on the goat weed until it's thoroughly wet and let it soak in.
Check the goat weed 48 hours later to ensure it's either dead or wilting. Apply more herbicide if the goat weed still appears to be healthy. It may take multiple applications to kill off the weed.