Are trees that are likely to fail always obvious during assessment?

Trees that are likely to fail are not always obvious during an assessment because healthy-looking trees can sometimes harbor hidden issues such as decay or structural defects. These internal problems may not manifest through visible distress signs like bark damage, leaning, or dead branches. For instance, a tree may appear robust on the outside but could have significant root rot or internal girdling if the connection of the roots to the trunk is compromised.

Assessors often rely on a combination of visual inspection and additional tools or techniques, such as diagnostic equipment, to identify these concealed weaknesses. This highlights the importance of thorough assessment practices that extend beyond surface observations, ensuring a comprehensive evaluation of a tree's health and stability. Recognizing that not all risks are outwardly visible is crucial for effective tree risk management.