A BAD HABIT - TREE WRAPPING
According to a well-known psychologist, tradition is the living faith
of the dead and traditionalism is the dead faith of the living.
A modern arborist takes issue with dead faith of those who continue
a practice rooted in traditionalism, trunk wrapping. The only reason they
do it is because grandfather did it. In reality, though, it causes damage
because the trunk wrap prevents the energy of the sun from being trapped
where it should be, the green tissue of the cortex below the periderm of
the tree trunk. The parenchyma of the cortex is made up of chlorophyll
containing cells and in the process called photosynthesis food is produced
for the tree as well as for many microorganisms in the soil.
So, by wrapping we deprive the tree of its natural source of food, causing
a decline in the vitality and increased danger from pests and fungi.
Of coarse there are occasions when wrapping is helpful such as when
transporting a tree. There is no data to show that it can prevent heat
or cold injuries. For protection against rodents, a fence, placed away from the
tree, makes more sense.
BIOLOGY OF PLANTS fourth edition chapter 7 (photosynthesis)
AMERICAN JOURNAL OF BOTANY Vol. 45 May 1958 (photosynthesis in aspen bark) By L.C. Pearson and D.B. Lawrence.
FOREST SCIENCE vol. 12, number 3, 1966 (Winter Breakdown of Photosynthetic
Apparatus of Evergreen Species) By Thomas O. Perry and George W. Baldwin.
MODERN ARBORICULTURE, A NEW TREE BIOLOGY, 100 TREE MYTHS
By DR ALEX L. SHIGO
John A. Keslick, Jr.
Text & Graphics Copyright © 2008 Keslick & Son Modern Arboriculture
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