Arborist Consultation & Tree Health Assessment in Bentonville, AR

Native oaks in a growing city

Many Bentonville neighborhoods were cut out of oak-hickory woods on the Ozark Plateau. Post oak, white oak, blackjack oak, northern and southern red oak, and several hickories are common, along with eastern red cedar. These trees can live for centuries, but they do not tolerate disturbance well. When a lot is graded, a driveway is poured or a trench is dug for utilities, the roots that were cut or compacted may not show their damage for three to five years. By then the top of the tree starts dying back, and owners often have no idea why.

That is one of the most common reasons we get called. An assessment can tell you whether a decline is likely from construction, drought, disease or a combination, and whether the tree can recover.

What we look at

• Canopy density and dieback. Thin crowns, dead tops and undersized leaves are early warning signs.
• Trunk and bark. Cracks, seams, cavities, cankers, oozing and fungal growth.
• Root zone. Grade changes, fill dirt piled against the trunk, compaction, cut roots and pavement.
• Structure. Co-dominant stems, weak unions, old storm breaks and leans.
• Targets. What a falling limb or tree would hit, from your roof to a play set or a neighbor's fence.

Storm history and old wounds

Northwest Arkansas remembers the January 2009 ice storm, which snapped limbs and tops on huge numbers of oaks across the region. Many of those trees survived and regrew, and University of Arkansas extension guidance notes that surviving post oaks can recover. But the regrowth that sprouted from broken limbs is often weakly attached, and old wounds can harbor decay. Add the spring thunderstorms, straight-line winds and tornado warnings that sweep through Benton County, and an older oak with hidden defects becomes a real risk. We look for decay at old break points and evaluate whether the regrowth is sound.

Drought stress and hypoxylon canker

The thin, rocky soils common in this part of the Ozarks hold little water, so oaks get stressed quickly during hot, dry summers. Stressed oaks are vulnerable to hypoxylon canker, a fungus that lives in many trees and takes over when they weaken. The telltale sign is bark peeling away to reveal a crusty, powdery fungal mat. Once that is widespread on the trunk, the tree usually declines quickly and the wood becomes brittle. Catching stress early, with deep watering, mulching and keeping traffic off the roots, gives the tree its best chance. We also check cedars for bagworms and look for borers, leaf diseases and scale.

Before you build

If you are building a home, an addition or a pool, call before the excavator arrives. We can mark which trees are worth saving, define root protection zones for fencing, and suggest where to route utilities and driveways. Saving a mature oak is far easier at the planning stage than after its roots are damaged.

Bentonville's tree rules focus on public trees in rights-of-way and city property, and the city prohibits topping them. For trees on private land near the street, we can help you figure out whether the city should be involved before work begins.

What happens after the assessment

You get our findings and a recommendation for each tree. That might be monitoring, corrective tree trimming, root and soil care, or removal. When a tree is too far gone, our tree removal crew can take it down safely and follow up with stump grinding. For wooded parcels being opened up for building, see our land clearing service.

Areas we cover

We assess trees across Bentonville, from older streets near the downtown square and the wooded ravines around Crystal Bridges to newer subdivisions on the city's edges, plus Rogers, Bella Vista, Cave Springs and Pea Ridge.

Common questions

Can you save a dying oak?

Sometimes. Trees with early stress often respond to care. Trees with advanced decay or widespread canker usually cannot be saved.

Do you put findings in writing?

Yes, on request, which is useful for HOAs, insurers or home sales.