What is the technique called where non-translocatable herbicides are applied to control specific branches toward utility facilities?

The technique referred to in this question is known as chemical side pruning. This method involves applying non-translocatable herbicides specifically to target branches that may interfere with utility facilities. The main advantage of using non-translocatable herbicides is that they will not spread throughout the plant, thus only affecting the treated branches without harming the rest of the tree. This helps in managing vegetation near utility lines without significant removal of the tree itself, ensuring tree health while maintaining safety standards around utility infrastructure.

In this context, while mechanical trimming and manual removal physically alter the tree structure, they do not use herbicides to achieve the desired outcome. Selective pruning, although it targets specific branches, generally does not involve the application of herbicides as part of its practice. Chemical side pruning stands out as the method combining herbicide application with the precise tool of branch management, making it the correct choice.