My arborist recommended a pesticide injection right into the trunk. Is that a good idea?
Injections and implants are methods of applying pesticides and nutrients to allow the material direct access into the trunk of the tree. They have been developed to control pests or diseases that have infested or infected the sapwood of a tree, to control tree pest without having to spray pesticides into the environment, or for immediate, short term treatment of nutrient deficiencies.