What does current research suggest about filling cavities in trees?

Current research indicates that filling cavities in trees can lead to additional decay. When a cavity is filled, the materials used can sometimes create an environment that retains moisture, which can exacerbate the decay process rather than halt it. Additionally, the foreign substances introduced into the tree can interfere with the natural healing processes or inhibit the growth of beneficial microorganisms.

Understanding tree physiology is crucial in this context; trees have natural mechanisms to compartmentalize decay and protect healthy tissue. Tampering with this system by filling cavities may disrupt those processes, leading to an acceleration of decay instead of a repair. This knowledge underscores the importance of evaluating the overall health and structure of the tree before deciding on management practices related to cavities. The other options do not align with current scientific understanding, as not all treatments necessarily enhance tree health or safety, nor are they free of risks.