What is a potential indication of root decay?

A potential indication of root decay is poor growth, above-ground decline, or leaning. When the roots of a tree decay, the stability and ability of the tree to absorb water and nutrients are compromised. This can lead to a decline in overall health, manifested by stunted growth, leaf discoloration, and premature leaf drop. Additionally, as the tree’s support system becomes weaker due to decaying roots, it may lean to one side, indicating a lack of stability. Together, these signs signal that the roots are struggling, highlighting the tree's compromised health and increasing the risk of failure.

The other options do not accurately indicate root decay. Signs of healthy growth suggest the tree is thriving and not experiencing root issues, while brown leaves could be caused by several factors unrelated to root health, thus not specifically indicating root decay. Lastly, small branches falling off might point to other stressors on the tree but wouldn't conclusively signal root problems.