Kills woody plants and vines such as poison oak, ivy, wild blackberries, and other brushy plants. Can be applied with hose-end sprayer and compressed air sprayer. Kills over 60 types of weeds. 100% root kill. Active ingredient: 8% Triclopyr. No. 0474010: Size: 16 oz, Active Ingredient: 8% Triclopyr No. 0473010: Size: 32 oz, Active Ingredient: 8% Triclopyr