What does "thinning" involve in tree trimming?

Thinning in tree trimming specifically refers to the selective removal of branches. This process is designed to enhance light penetration and improve air circulation within the tree's canopy. By selectively removing certain branches, the tree can receive more sunlight, which is vital for photosynthesis and overall growth. Improved airflow helps to reduce the risk of fungal diseases and pest infestations, contributing to the tree's health and stability.

This practice differs significantly from simply removing a tree altogether, which is not considered thinning. Additionally, thinning does not involve applying fertilizers or planting additional trees; those practices have other specific purposes and goals in tree care and forestry management. Thinning focuses specifically on managing the structure of an existing tree to promote its health and longevity.