Crown lifting is when the lower branches of a tree are removed so the canopy of the tree starts higher. This allows room for people and traffic to pass underneath and can let more light pass through the tree canopy. Regulations have been put down for crown lifting for example trees must be crown lifted to 2.5m over a public footpath and to 5.2 meters over a public road.
This is where all the dead wood (within reason) is removed from the tree canopy. In some instances the size of dead branches within a tree may be reduced but not completely removed, this is regarded as a more ecologically friendly method of management as it retains a habitat for fungal and invertebrate colonisation without compromising on safety.
Crown Thinning is when certain branches (including crossing branches, dead wood and epicormic growth) are removed evenly over the whole of the tree to allow more light and wind to pass through.
When you reduce the height of the tree it is usually good practise to reshape the whole of the tree in relation to how much you have reduced the tree by.
Pollarding is when you remove all of the branches and just leave the stump and let epicormic growth form a much smaller tree canopy, this should be repeated on a regular occurrence i.e. 5 year rotation as epicormic shoots can form weaker growth points making them more prone to failure (only certain trees and cope with this method of management).
Removal of Trees
This is where you cut the tree down to ground level by either:
Although simple in theory this requires a lot of experience and knowledge to be performed accurately and above all safely. Tree felling should only be undertaken by qualified personnel. Methods of tree felling could involve using felling wedges, a felling lever, a rope or for more experienced tree fellers using tractors with a sturdy rope or simply allowing the weight of the canopy of the tree to direct the fall of the tree.
In many instances when trees are to be removed there is not enough room to safely fell a tree without causing any damage therefor the tree must be dismantled. Dismantling can be done by climbing. The dismantling process involves the tree being cut down in smaller sections to ensure that no damage is done. This requires a lot of skill, knowledge and experience. This is why only qualified tree surgeons have the relevant experience to complete the job in a safe and prompt manor.
Although tree stumps can be left after tree felling, it is often considered good practice to remove the stump when in a garden, this prevents suckers being produced from the stump without the risks of using herbicide. Removing the stump can also prevent the spread of disease.
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