Most "sick tree" calls are a root problem or a stress problem

A thinning crown is a symptom, not a diagnosis. By the time a canopy looks bad the cause is usually two or three years old and below ground: soil compacted by construction traffic, grade changed over the root zone, a girdling root strangling the stem, drainage altered nearby, or simple drought stress on a tree planted in the wrong soil. We look at the root collar and the site before we look at the leaves.

What we actually check

• Root collar — is the trunk flare visible, or is the tree buried too deep? Girdling roots, decay, and mushrooming at the base

• Stem — cavities, seams, included bark at unions, bulges, fruiting bodies, bark sloughing

• Crown — dieback pattern, leaf size and color, deadwood distribution, lean and canopy weight

• Site — grade changes, trenching, compaction, drainage, irrigation heads spraying the trunk, and what was built nearby and when

• Target — what is under the tree, because a defective tree over open woods is not the same problem as the same tree over a bedroom

Southern pine beetle: the one that moves fast

Historically the most destructive forest insect in South Carolina. The adult is about one-eighth of an inch, reddish-brown to black. The signs are specific: pitch tubes — popcorn-sized blobs of resin pushed out of the bark where beetles bored in — and, under the bark, winding S-shaped galleries. The crown fades from green to yellow to red, and by the time it is red the tree is gone.

The reason it matters here is speed. A generation runs from egg to adult in roughly 28 to 54 days, and several generations happen in a year, so an infestation spreads to neighboring pines rather than staying put. Stressed pines are the ones attacked first — drought, flooding, fire, mechanical damage from construction, and poor nutrition all predispose a tree. That is why pine beetle is often a symptom of something that happened to the site. Source: South Carolina Forestry Commission.

What we see on oaks in the Midlands

• Hypoxylon canker — a stress-driven fungus. Bark sloughs off in sheets and reveals a dusty, silvery-to-black surface underneath, with crown dieback above. It generally shows up on trees already weakened, and by then the structural question matters more than the disease.

• Armillaria root rot — gradual decline with honey-colored mushrooms clustered at the base. A root and butt issue, so it is a stability question, not just a health one.

• Bacterial leaf scorch (Xylella fastidiosa) — browning that starts at the leaf margins, spread by leafhoppers, causing decline over roughly five to ten years. Often mistaken for drought.

• Also common and mostly cosmetic: oak leaf blister, Actinopelte leaf spot, powdery mildew, lecanium scale, oakworms, and galls — oaks host over 750 described gall types and nearly all of them are harmless.

Worth knowing: oak wilt, the disease that drives pruning bans across the Midwest and Texas, is not considered a significant problem in South Carolina per Clemson Extension. Anyone selling you oak wilt treatment here should be asked to show you the diagnosis.

What you get, and what we will not do

You get a walk-around and a straight recommendation: this one is fine, this one needs deadwood out, this one needs support, this one should come down, and this one we should look at again in a year. Where the fix is cultural — mulch out to the drip line instead of volcano-piled on the trunk, stop irrigating the trunk, correct the grade, relieve compaction — we will tell you that, because it is usually cheaper and more effective than a product.

We do not diagnose by photo, we do not sell injections we cannot justify, and we are not a laboratory. When something needs confirming, Clemson Extension's plant problem clinic does the testing and we will tell you to send a sample. Soil work ties into our soil-test-based turf program, which uses the same sampling.

Where we do this work

We assess trees in Columbia, Forest Acres, Shandon and Rosewood, King’s Grant, Northeast Columbia, and the rest of our Richland, Lexington, and Kershaw county service area.

The Arborist Division

Tree work runs as its own division inside Magnolia Outdoor Services, with its own climbing gear, rigging, saws, and crew. That matters on a property because the tree is rarely the whole job. The stump, the ruts, the bare ground where the canopy used to be, and the drainage that changes once a big pine is gone all land on the same company. One walk-through, one scope, one crew that cleans up after itself.

We carry general liability and workers' compensation coverage, and we will send you the certificates before we set foot on the property. Ask every tree company you call for both. Tree work is the highest-risk trade that regularly operates in a residential backyard, and if an uninsured crew gets hurt on your lot, that exposure can land on your homeowner's policy.

Call (803) 343-9655 or request an estimate. Every project starts with a walk-through and a written scope.