A popular operation with fruit trees but applicable to plants of almost any size and species, thinning of the crown can help make trees look less like solid lumps but instead attractive plants with airy, open silhouettes.
Done correctly built up, branchy trees can be transformed to have elegant, semi-opaque canopies which cast dappled shade as opposed to solid shadows. This can vastly improve mossy lawns and boggy flowerbeds as well as damp walls and sheds. It can also be used to highlight a trees decorative bark or attractive branch growth.
Dead branches in trees may sound like a sign of things going downhill with a trees health but more often than not having small amounts of dead wood in a trees canopy is no cause for concern. If those branches are over a busy walkway or a delicate conservatory roof though it may be wise to have them removed before they can fall and cause damage.
Canopy cleaning involves the complete removal of any dead wood followed by the removal of any split, snapped or rubbing branches. This reduces both the risk of infection to the tree through exposed injuries as well as mitigating the risk of damaged limbs getting worse and failing unexpectedly. Oftentimes canopy cleaning will be utilised in accordance with other pruning operations such as reductions or thinning to leave healthy, looked after trees.