Where applicable, an arborist’s aim is to remove the specified tree as safely and as efficiently as possible. More often than not, trees in residential areas lack the space for straight felling, therefore, need to be removed section-by-section, to minimise risk of damage to the property.
Crown reduction
The reduction in height and/or spread of the crown (the foliage bearing portions) of a trees. Crown reduction may be used to activate mechanical stress on individual branches or the whole tree, make the tree more suited to its immediate environment or to reduce the effects of shading and light loss, etc.
Crown thinning
Crown thinning is the removal of a portion of smaller/tertiary branches, usually at the outer crown, to produce a uniform density of foliage around an evenly spaced branch structure. It is usually confined to broad-leaved species. Crown thinning does not alter the overall size or shape of the tree.
Crown lifting
Crown lifting is the removal of the lowest branches and/or preparing of lower branches for future removal. It is an effective method of increasing light transmission to areas closer to the tree or to enable access under the crown but should be restricted to less than 15% of the live crown height and leave the crown at least two thirds of the total height of the tree.
Hedge cutting and Trimming
Timing of pruning should take into account the potential for nesting birds (1st March to 31st July), so should be first checked for signs of wildlife. However in general, these are the optimum timings for pruning hedges:
Deciduous hedges
Formative pruning: In winter, just after planting, and for the first two years after planting
Maintenance pruning: Each summer
Evergreen hedges
Formative pruning: In the spring after planting and for the first two years after planting
Maintenance pruning: Each summer
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