- 1). Put on garden gloves and identify the largest milkvetch plants, or the areas of the most sparse growth, which you can weed by hand. Grasp the base of the milkvetch plants and pull them straight up out of the ground to remove them. Place the weeds into a trash bag and seal the bag before throwing it into the trash.
- 2). Fill a backpack or hand-pump garden sprayer with an herbicide that contains one of the following active ingredients: dicamba, picloram, metsulfuron, clopyralid or triclopyr.
- 3). Dilute the herbicide chemicals with water, following the instructions on the bottle, and screw the top back onto the garden sprayer. Shake the sprayer for five to 10 seconds to mix the chemicals in with the water.
- 4). Spray all milkvetch weeds thoroughly with the herbicide spray until it drips off of the leaves and the stems.
- 5). Examine the location at least once per month to identify new milkvetch seedlings that emerge and treat them with the herbicide mixture to kill them. If any older weeds did not succumb to the first herbicide application, pull them up by hand before they produce seeds.
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