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 Wound left from the removal of a vigoris tempory lateral branch.
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Impacts of Pruning All pruning has some negative impacts, if only temporarily, on tree health. Pruning causes wounds through which wood decay or other pathogens can enter. The removal of foliage ultimately reduces a tree's ability to feed itself, necessitating the expenditure of stored energy to replace lost foliage, close wounds, and resist invasion by decay causing pathogens. Damage, of course, depends on extent of pruning, size of wounds, time of year, and tree health prior to pruning. Thus, trees should be pruned only as needed to accomplish the desired goal. Be advised, that some goals may be incompatible with tree health. Perhaps even more important is that pruning alters, positively or negatively, natural architecture, shape, foliage density and distribution, branch spacing, attachment strength, etc. Tree health and hazard potential are also affected. |
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