Tree surgeons perform tree-related tasks such as planting, felling, maintenance, and risk assessments.
There are structural issues with the tree, such as interior decomposition. The tree is too big for its location and poses a threat if it falls or sheds branches. The tree impedes construction or will be fatally damaged by heavy machinery.
Pruning removes dead and decaying branches and stubs to make space for new growth and protect your property and pedestrians from harm. Additionally, it discourages insect and animal infestation and encourages the plant's natural form and healthy growth.
Woodcutters is a plural, countable noun. A woodcutter is a person whose occupation involves cutting down trees or chopping wood.