Curbside Red Maples take a beating — salt, compaction, mower wounds, root girdling. Paul walks one in this short field clip and shows what an arborist actually looks at when he’s standing in front of the tree.
If you live on a paved residential street in South Jersey, the tree at your curb is almost certainly under stress you can’t see. Street trees live in the worst soil conditions of any tree on the property — compacted by traffic, salted in winter, root volume capped by the road on one side and the sidewalk on the other. By the time symptoms reach the canopy, the cause has usually been working away below grade for years.
This field clip is a five-minute walk-around on a Red Maple at the curb. The tree was showing decline up top. The owner wanted to know whether it was salvageable. Paul didn’t lead with the canopy — he led with the base.
Street Trees · Paul Biester · Tree Awareness
The base of the tree. First thing Paul looks for at ground level is fungal fruiting bodies anywhere around the root flare. Conks, brackets, mushrooms at the soil line are not subtle — they are evidence of wood decay or root rot already underway internally. He’s also checking for physical damage: bark injuries from string trimmers and mowers, or root girdling where a circling root is strangling the trunk against itself.
The soil. Compacted, poorly drained soil is the slow killer of street trees. Paul tests for it under his boot — if the ground rings hard, water and oxygen aren’t moving through the root zone the way they need to. He notes any weeds or invasive plants competing for the limited nutrients in that small soil envelope.
The roots. Where you can see them at the surface, healthy roots are firm and solid-looking. Discolored, mushy, or hollow-feeling roots signal decay or pathogen presence. On a street tree, the visible surface roots are a sample — if they look bad above grade, what’s below grade is usually worse.
The canopy. Only after the base is read does Paul work up. Yellowing leaves, dieback at the branch tips, smaller-than-normal leaf size in the current year — these are all consistent with a root-system problem that’s now showing up in the leaves the tree can no longer fully feed.
“Upon inspection of the Red Maple street tree, Paul noted several important factors at its base. The presence of any fungal fruiting bodies around the root zone could indicate a fungal infection, often associated with wood decay or root rot. He also looked for signs of physical damage, such as bark injuries or root girdling, which could contribute to the tree’s overall health decline.” Paul Biester · Tree Awareness · Field Notes
Once Paul has read all four layers, the recommendation is one of three things. Correct the soil conditions — air-spading the root zone, applying organic matter, vertical mulching to restore aeration. Address a treatable issue — cabling a defect, treating a pest, removing a girdling root. Or, if the decline is structural and irreversible, plan the replacement — the right tree for the right space, with a soil prep that gives the next tree a fighting chance the original one didn’t get.
Routine monitoring is the difference between a 30-year street tree and a 12-year one. Most curbside trees are removed long before they reach maturity, and most of those removals are preventable. Annual inspection, root-zone management, and watching the canopy through the year — that’s the maintenance plan. It is not glamorous, and it is not expensive compared to a removal-and-replant cycle.
If your street tree is showing decline, get it walked before another season of stress. Schedule with Plant Healthcare →
