 Re: Air-spade
Yes, girdling roots need to be cut off the tree.
To leave them is to strangle the tree resulting in a slow death.
The number of girdling roots, the species of tree, whether or not they have grafted into one another or worse grafted in the main flares, presents problematic questions to the arborist who has only experience and his gut feeling on what to cut and what to leave.
We always follow up with a deep root, high-pressure fertilization tailored to stimulate new root growth and recommend repeated visits and/or additional fertilization treatments.
Recovery varies with species. Live oaks (Quercus fusiformis) recover slowly. Magnolias (Magnolia grandiflora - famous for girdling roots around here) have shown positive response in as little as 2 weeks! |