Weed killer herbicides work for killing brush stumps. Products containing glyphosate, triclopyr ester or triclopyr amine control brush stumps sprouting with new growth, leading to their death, according to the University of Florida. Cut the stump close to the ground and apply the weed killer on the inner flesh as soon as possible, for the best results.
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Joyce Starr is a freelance writer from Florida and owns a landscaping company and garden center. She has published articles about camping in Florida, lawncare, gardening and writes for a local gardening newsletter. She shares her love and knowledge of the outdoors and nature through her writing.