Abstract: An injection capsule to treat trees and woody plants comprising a receptacle portion to hold a chemical to treat trees and woody plants. The receptacle portion has a closed end and an open end, the closed end being formed with a bore extending internally through the receptacle portion from the closed end to the open end. The bore houses a screw fastener, movable along the length of the bore and guided by the walls of the bore, to allow the injection capsule to be attached to a tree or woody plant. The bore is formed with a narrowed diameter section to limit the travel of the screw fastener as it is pushed through the internal bore and driven into a tree or woody plant in order to hold the open end of the injection capsule tightly against the tree or woody plant.

Abstract: An apparatus for fastening an injection capsule having a fastening screw to a tree or woody plant comprising a rotatable shaft supported in a bearing member. The rotatable shaft extends through the bearing member into a cavity for holding and aligning an injection capsule where the shaft is formed into a driving member. The shaft is connected to a power source to rotate the shaft, whereby the driving member engages the fastening screw of the capsule and, upon rotation of the rotatable shaft, the fastening screw is rotatably driven into the tree or woody plant to fasten the injection capsule thereto.