Storm Damage on Mature Conifer: Wound Care and Long-Term Assessment

Don't Fill the Cavity

Modern arboriculture: leave wounds open. Clean ragged edges to smooth wood, but don't use sealants, concrete, or foam. The tree compartmentalizes decay naturally.

What the Hole Reveals

A 12″ deep × 4″ wide cavity in a 125+ year old conifer suggests pre-existing internal decay. The storm didn't cause the rot—it exposed it.

Monitoring Protocol

• Annual inspection: check for new cavities, fungal conks, cracking.
• If more large limbs fail with hollow centers = extensive trunk decay = hazard tree.
• Large limbs usually fail before whole tree; low risk to structures if fall zone is clear.

Health Boost

Fertilize next fall: 10-10-10 at 1 lb per inch trunk diameter, broadcast to drip line, water in. Improves vigor and compartmentalization capacity.

When to Call an Arborist

If the tree leans, soil heaves, or new cavities appear—get a professional risk assessment (ISA Certified Arborist).