How to Tell If a Tree Is Dead or Dying

A dead or declining tree near your home is more than an eyesore — in the wind-exposed, hillside neighbourhoods of Port Moody and the Tri-Cities it can become a real hazard. The tricky part is that trees decline slowly, and a tree can look fine from the street while losing structural integrity. Here are the signs worth checking.

The scratch test

Use a fingernail or pocket knife to scratch a small spot on a twig or the bark of a branch. Healthy living tissue (the cambium, just under the bark) is green and slightly moist. If it is brown, dry, and brittle, that branch is dead. Try several branches around the tree — if every test is brown, the whole tree may be gone.

No leaves when there should be

By late spring, a healthy deciduous tree should be fully leafed out. Bare branches in summer, leaves only on part of the canopy, or leaves that are noticeably smaller and sparser than previous years all point to decline. On conifers like Western red cedar and Douglas fir, watch for browning needles that spread year over year rather than the normal seasonal shed.

Bark and trunk signs

• Large patches of missing or peeling bark, or smooth bare wood where bark has fallen away.
• Deep vertical cracks, splits, or hollow cavities in the trunk.
• Mushrooms or shelf-like fungus (conks) growing on the trunk or at the base — often a sign of internal decay.
• Sawdust-like material or many small holes, which can indicate boring insects in a stressed tree.

Branch, canopy, and root signs

Lots of dead twigs and brittle branches in the upper canopy ("deadwood"), branches that snap dry rather than bend, and a thinning crown are all warning signs. At ground level, look for heaving or cracked soil on one side of the trunk, severed roots from recent excavation, or a new lean — these point to root or stability problems that matter most on slopes.

Dead, or just stressed?

Not every struggling tree needs to come down. Drought, a hot summer, soil compaction, or recent construction can stress a tree that will recover with care. Removing diseased or dead branches and improving the root environment sometimes turns a declining tree around. The honest answer often requires a professional assessment.

When to call

If a tree is clearly dead, leaning toward a structure, dropping large limbs, or showing fungus and trunk cavities, have it assessed sooner rather than later — especially before storm season. Our certified arborists can tell you whether a tree is dead, salvageable, or a hazard, and in Port Moody a written arborist confirmation is what the City asks for to permit a dead-tree removal (the permit fee is waived for confirmed dead or hazardous trees). If it needs to come down, see tree removal in Port Moody or request a free estimate.