Preventing damage to mature tree canopy due to storms starts with ensuring that proper tree pruning has been scheduled and completed by an ISA Certified Arborist and or company. Removal of existing hazards (cross branching, hanging limbs, deadwood etc.) and establishing a central leader when applicable should be the main priorities. Normally canopy trees should be inspected at least annually for the presence of any hazardous defects. "Hurricane" trimming of trees is not necessary every year and can actually be harmful be removing much more canopy then is necessary weakening your trees. The rule of thumb for scheduling structural pruning is once yearly for trees that are 1-7 years of age, every 1-2 years for trees 7-14 years of age and 3+ years for trees 14 years and older. For trees that have been storm damaged tree evaluation for hazard abatement is a must. Only utilize a trained ISA Certified Arborist and or company to perform this type of pruning.
For some additional tips on structural pruning for trees please see the following references:
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