Which indicator suggests a risk of tree failure?

Root decay or weakness is a significant indicator of tree failure risk because the roots are essential for stability and nutrient uptake. When roots decay or exhibit weakness, the tree's ability to anchor itself in the soil diminishes, making it vulnerable to toppling over during strong winds or heavy rains. Additionally, weakened roots can lead to poor nutrient absorption, which can compromise the overall health of the tree, leading to further stress and potential failure.

In contrast, excessive foliage may indicate a healthy tree benefiting from ample nutrients and water, while strong growth patterns often suggest robust health and vigor. Healthy bark texture typically reflects a tree in good condition, free from diseases or pests that could compromise its structural integrity. These characteristics do not inherently signal an increased risk of failure, unlike root issues, which directly affect the tree's stability.