Some
trees when lopped severley, or at the wrong time of year,
may never recover and die.
The
remaining end of the stub will not callus over and the
exposed tissue will be vulnerable to decay and rotting
caused by fungi, bacteria, insects, water and sunscald.
The stubs become pathways for pathogens to enter and spread
into the part of the tree to where they're attached.
Lopped
trees try to replace their lost foliage by growing "Epicormic
shoots" from various parts of their remaining structure
- especially the stub ends. The
Epicormic shoots only grow from the outer most living tissue
layer of that year's growth, they are weakly attached and
prone to falling out or breaking off, especially when they
arise from the stub ends.
Epicormic
shoots are extremely vigorous and quick growing. They may
even out grow the original height and spread of the tree.
Our
experience also reveals that after a few years many trees
develop a cavity in the base which progresses up the trunk,
usually followed by termites. The reason for this is that
trees have foliage/root ratio and when the canopy is removed
(lopped), the tree responds by losing some of the roots
through decay and it is usually the roots closest to the
trunk.
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