Abstract: A tool including a tree punch for forming holes in a tree. The tool also includes a tree plug insertion tool for inserting cylindrical tree plugs into the holes created by the tree punch.

Abstract: An injection fluid retention plug is provided which may be inserted into a preformed hole in a tree. The plug includes a hollow shank portion which is filled with a resilient material. The inner and outer ends of the shank portion have the same outer diameter. The shank portion does not have a flange at the outer end thereof.

Abstract: An injector plug for use with an injector for injecting liquid chemical into a tree. After the tree has been injected, the plug remains in the tree.

Abstract: An apparatus is disclosed for injecting liquid chemicals directly into the trunk of a tree with the apparatus having a tapered, wedged-shaped needle on the end of an injection tip which is detachably secured to an injector. The injection tip includes a spring-loaded valve which is opened when the injection tip is secured to the injector to permit the chemical to flow therethrough. After the injection needle has been injected into the tree, the injector is disconnected from the injection tip. After a predetermined length of time has expired, the operator may manually open the valve to determine if the liquid chemical pressure within the tree has diminished to enable the injection tip to be removed from the tree.

Abstract: An injection tip for use with an injector for injecting liquid chemical into a tree such as a palm tree which includes a body portion, a needle and a point member mounted on the forward end of the needle. The needle has liquid ejector holes formed therein adjacent the forward end thereof.

Abstract: An apparatus is disclosed for injecting liquid chemicals directly into the trunk of a tree with the apparatus having a tapered, wedged-shaped needle on the end of an injection tip which is detachably secured to an injector. The injection tip includes a spring-loaded valve which is opened when the injection tip is secured to the injector to permit the chemical to flow therethrough. After the injection needle has been injected into the tree, the injector is disconnected from the injection tip. After a predetermined length of time has expired, the operator may manually open the valve to determine if the liquid chemical pressure within the tree has diminished to enable the injection tip to be removed from the tree.

Abstract: A chemical shell for insertion into a tree comprising an elongated hollow tubular member having a closed first end and an open second end with a rim portion extending outwardly from the closed end. A non-aqueous chemical is contained within the tubular member and a water-soluble tubular sleeve extends over the open second end of the tubular member and at least a portion of the tubular member to maintain the chemical in the tubular member until the shell has been inserted into a tree so that the sap in the tree dissolves the sleeve to permit the chemical in the tubular member to be released into the tree when dissolved by the sap in the tree.

Abstract: A chemical shell for insertion into a tree comprising an elongated hollow tubular member having a closed first end and an open second end with a rim portion extending outwardly from the closed end. A non-aqueous chemical is contained within the tubular member and a water-soluble tubular sleeve extends over the open second end of the tubular member and at least a portion of the tubular member to maintain the chemical in the tubular member until the shell has been inserted into a tree so that the sap in the tree dissolves the sleeve to permit the chemical in the tubular member to be released into the tree when dissolved by the sap in the tree.