Branches    (View PDF)

Alex L. Shigo

Abstract: Trees have developed effective defense systems for walling off infections that may enter the trunk through dying and dead branches. As the growth rate of a branch decreases, the trunk wood begins to form a swollen collar around the base of the branch. When pruning, cut as close as possible to the collar, but do not remove the collar.

Keywords:

https://doi.org/10.48044/jauf.1980.073