There can be simple reasons for pruning trees or there can be complicated ones. Either way, you should always have a reason why you would prune your tree.

Here are a few simple reasons:

Trimming allows more sunlight to enter the canopy or to understory trees or plants down below. For a lot of trees, if the internal canopy or internal branches don’t get enough sunlight, they will start to die off because the tree has no need for them any longer to produce photosynthesis for the tree.

Crown cleaning or thinning a tree can help prevent the tree from producing dead internal or lower branches, which will produce a more evenly looking tree.

Insects, such as scale or mealybug prefer dark and moist environments, so crown cleaning or thinning can help reduce the number of these pests by allowing more sunlight and airflow to pass through the canopy.

The size of a tree: Crown reduction of a tree can maintain a tree’s natural form and reduce its size in a way that will not cause it to produce sucker growth or an unnatural shape or form.