PRUNING PAINT
Pruning paint is often used on trees and shrubs to cover wounds.
However, research has shown pruning paint to be of LITTLE BENEFIT to
the tree or shrub. Insects will not be prevented from infesting a tree,
and will attack the wound whether it is sealed or not. Disease organisms
will have already infected the cut surface. In fact, pruning paint may
actually seal disease organisms inside the wound, preventing weather from
affecting the organism.
Pruning paint could be classified as a "placebo" -- making the user
feel good but doing little for the plant.
Wounds will heal properly if pruned correctly.
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