4. Insect Activity
Some insects bore into tree bark, creating small tunnels.
These entry points can:
Damage internal tissue
Introduce pathogens
Trigger sap production
If insects are involved, you may notice tiny holes near the gum.
How to Tell If It’s Serious
Not all gummosis is dangerous.
Sometimes it’s a minor response to a small injury, and the tree will recover on its own.
However, it’s worth taking a closer look.
Signs it may be mild:
Small, isolated patches
No visible damage around the area
Tree otherwise looks healthy
Signs it may need attention:
Large or multiple oozing areas
Cracked or sunken bark
Leaves wilting or branches dying
Presence of insects or holes
The context matters more than the gum itself.
What You Should (and Shouldn’t) Do
If you notice this on your tree, the first step is observation—not panic.
