FAQ – Why is placement of the chemical in the tree so important?

Shallow injections allow the insecticide to move upward with the flow of sap through the vascular system. ArborSystems Wedgle Direct-Inject Tree Injection System is designed to distribute the chemical into the tree’s outer active layers. Injection methods that use drilling can be ineffective and cause serious long term damage. If the hole is too deep, the pressure of the injection will push some of the insecticide into the inner rings where it will stay and not be used. “Small, shallow holes, no deeper than two growth rings, cause the least amount of injury” according to Alex Shigo’s “Modern Arboriculture.”