Abstract: For treating freshly cut tree stumps to inhibit regeneration of the stump, the stump is coated with herbicide. The herbicide is applied to the stump by means of a sponge or other application device. The sponge is housed in a housing which is connected to a reservoir with a long handle. After a tree is cut, herbicide is applied to the fresh cut surface. The treatment device may be attached to a saw and include a reservoir carried by the saw operator. The herbicide application device is clamped to the shaft of the rotary saw and positioned adjacent the safety guide so that immediately after the tree is cut, herbicide may be applied to the fresh cut.