What can occur if a guy wire is left in place too long on a tree?

Leaving a guy wire in place on a tree for an extended period can lead to breakage. This occurs because trees grow over time, and as they expand in diameter and height, the wire can constrict their growth and cause physical damage. If the guy wire is too tight, it can create pressure points on the tree's bark that may dig into it, potentially girdling (cutting into the bark and disrupting the flow of nutrients and water) and leading to structural weaknesses. This pressure may ultimately result in branches or the trunk breaking under stress, particularly during adverse weather conditions or as the tree continues to grow and develop.

While growth can be influenced positively by correct staking in the short term, and stunting or leaning might also occur from improper support, breakage is a direct and severe consequence of leaving a guy wire on a tree for too long, interfering with its natural growth and health.