Arborist Assessing an Oak Beside a Golf Fairway

Golf Course Tree Care: A Practical Program for Superintendents

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Good golf course tree care is a written, recurring program: an inventory of every tree, regular scouting for pests and decline, pruning that opens light and air to the turf, and clear rules for when a tree stays and when it goes. Courses that work this way spend less on emergency cleanups, fight fewer turf problems and keep players safer. This guide walks through how to build that program, with timing notes for North Texas courses.

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TL;DR

  • Trees compete with turf for light, water and nutrients and block air movement, so tree work is turf work. The USGA recommends a written tree management plan led by the superintendent.
  • Start with a full inventory by an ISA Certified Arborist, then scout on a fixed schedule rather than when someone notices a problem.
  • Prune in the dormant season where you can, but in Texas do not prune or wound oaks from February through June because of oak wilt.
  • Decide preserve, prune or remove with written criteria: health, safety, turf, playability and design.
  • After storms, close the damaged areas first and call qualified crews before anyone starts cutting.

Table of Contents

Why trees need their own program on a golf course

Trees give a course shade, definition and character. They also sit directly on top of the thing you are paid to grow. According to the USGA’s guidance on developing a tree management plan, trees compete with turf for sunlight, water and nutrients, and they restrict air movement, which raises humidity and encourages turf disease. Poorly placed trees also threaten player safety and damage cart paths and bunkers.

Roots are a quieter problem. Surface roots, often called knees, can break mower blades, cause cart accidents and injure golfers who strike them during a swing.

The cost shows up in the maintenance budget. At Oakmont, the superintendent reported that trees had demanded more fertilizer and water and had created turf problems that led to more chemical use. Areas where trees were removed became low-maintenance fescue. You do not need to clear-cut a course to learn from that. The point is that every tree has a maintenance cost, and a plan lets you decide which trees earn it.

A written plan has a second benefit: it takes emotion out of the room. Members attached to a particular oak and a green committee fed up with a shaded green will argue less when the criteria were agreed in advance.

Step 1: Build the tree inventory

You cannot manage what you have not counted. A usable inventory records species, location, size, condition and expected life span for each tree, ideally in a digital map layer you can filter by hole. The USGA notes that professional arborists are the best option for producing an accurate inventory of this kind.

A few practical rules:

  1. Tag by hole and zone. Greens, tees, landing areas and cart-path corridors need different decisions than the deep rough.
  2. Record risk separately from health. A healthy tree with a poor structure over a practice tee is a different problem than a declining tree in a wooded buffer.
  3. Flag priority species. In North Texas that usually means oaks (because of oak wilt), ash and other species with known pest or structural problems, and cedar elm and hackberry with weak unions.
  4. Update it every year. An inventory that is never revised becomes a map of last decade’s course.

If you are comparing how formal inventories and management plans are produced elsewhere, a professional tree inventory from a certified arborist abroad follows the same logic: assess each tree individually, document it, then plan work around the findings.

On who leads: the USGA’s view is that the superintendent should lead the plan, with arborists contributing to the inventory and health assessment. That matches how most courses work in practice. Your team knows the turf and the golfers. The arborist brings the diagnostic training.

Step 2: Scout for decline, pests and hazards

Most expensive tree failures were visible months earlier. Thin crowns, dead twigs, fungal fruiting bodies, cracks, sap flow and leaning trees are all cues. The challenge on a busy course is that no one is assigned to look.

In a 2023 article, Fech and Larson recommend that scouting be done often, without skipping weeks, because pests such as bagworms and scales are easier to control in their early larval stages. They also suggest making monitoring a dedicated duty for select team members, which improves consistency and makes the data more reliable. Many courses call this person the tree scout.

A simple scouting routine:

  • Weekly in the growing season: walk assigned holes, note new webbing, defoliation, honeydew, frass at the base of trunks and sudden leaf discoloration.
  • After every major wind or ice event: check for hanging limbs, cracked unions and root plate lifting.
  • Once a year: a walk with an arborist through the highest-traffic areas.

Visual inspection has limits. Internal decay can sit behind a normal-looking trunk. A 2024 USGA report notes that certified arborists can use tools such as sonic tomography and tree coring to find internal decay and structural instability that a walk-by can miss. If a tree hangs over a tee box or a cart path and something looks off, that is when to bring in a specialist. Our own guide to tree risk assessment by a certified arborist explains what that process involves.

Common North Texas problems to watch for

We work across Dallas and the surrounding counties, so these are the issues we see most on large properties:

  • Oak wilt in live oaks and red oaks, spread by sap beetles and through connected root systems.
  • Webworms and other defoliators on pecans and ornamentals.
  • Wood borers in stressed trees, particularly after drought.
  • Scale and aphids that weaken trees and leave sticky honeydew on cart paths and equipment.
  • Root damage and compaction from cart traffic, trenching and construction.

Our pages on disease and fungus management and tree disease prevention cover what treatment generally involves.

Step 3: Prune for the tree and the turf

Pruning is where tree health and turf health meet. Done well, it lets in sunlight, moves air across greens and keeps the tree structurally sound. Done badly, it leaves wounds, stubs and weak regrowth.

What to prune and why

The USGA’s winter tree work guidance lists raising canopies as a way to improve airflow and pace of play. Removing low-hanging limbs also clears sightlines and keeps players and mowers out of branches. The same guidance recommends clearing understory brush along summer wind corridors, so breezes actually reach the turf, and root pruning near greens and tees to ease competition for nutrients and water.

For young and middle-aged trees, structural pruning is a primary objective. Gilman and colleagues, in a 2013 ISA conference paper, describe it as pruning that guides tree architecture to manage risk and promote long-term health, rather than simply thinning the crown. Fixing a co-dominant stem on a 10-year-old tree costs a fraction of removing a failed 40-year-old tree later.

Cuts that heal properly

Proper cuts are made just outside the branch collar, which we like to call the tree’s shoulder. That lets the tree compartmentalize the wound and close it. Flush cuts remove the collar and open the trunk to decay. Topping and heavy lion’s-tailing weaken trees and create hazards. Our science of tree pruning and pruning techniques guide go further into cut placement.

Whatever contractor you use, specify work to the ANSI A300 standards. The ISA says these standards are recognized by the U.S. civil court system as the final authority on professional tree care practices, so a work order that cites them protects the club as well as the tree.

Step 4: Decide whether to preserve, prune or remove

This is the decision that causes the most friction. The USGA’s plan framework says a plan should weigh tree health, safety, turf conditions, playability and course design. Here is how we turn that into a working test.

QuestionPoints toward keepingPoints toward removal
Is the tree healthy and structurally sound?Good vigor, sound structureAdvanced decline, major decay, serious lean
Does it threaten people or property?Risk can be reduced by pruning or cablingRisk remains high after mitigation
Is it hurting turf?Shade or roots can be managed by pruningPersistent turf failure on a green or tee despite pruning
Does it affect play?Adds strategy or definitionBlocks the intended line of play with no fix
Does it matter to the design?Part of the original characterPlanted later, off-concept, or crowding a feature

Three habits keep the process fair. Record the reason for each removal in the inventory. Try pruning and root work before removal on trees worth saving. Replace removed trees with the right species in the right place, rather than leaving a hole in the design.

Removals near greens, power lines or play corridors are rarely routine. This is where specialized equipment pays off. We use a Grapple Saw Truck, which we believe was the first in North Texas, to remove large trees with far less climbing, and cranes for trees that cannot be dropped in sections. Our tree trimming and removal work is built around that safety advantage.

Step 5: Time the work to the season

No single calendar fits every course, so use these principles and confirm details with your arborist.

Winter is the main tree work window. Winter pruning and removal let crews work while play is slower and turf is dormant. The USGA describes root pruning as a job best done in winter, and notes it is often ignored despite its year-round benefits for turfgrass.

But in Texas, oaks are the exception. The Texas A&M Forest Service advises avoiding pruning or wounding oak trees from February through June, when sap beetles that carry oak wilt spores are most active. It also says any oak wound made at any time of year should be painted immediately. In practice that means scheduling oak pruning in the cooler months outside that window, often late fall and early winter, and treating storm breaks on oaks as a same-day wound-care matter.

Scout pests during the growing season. Control timing depends on the pest’s life stage, which is why weekly scouting matters more than a fixed spray date.

Keep a storm plan on file. North Texas gets severe thunderstorms, hail and the occasional ice event. USGA guidance after Hurricane Helene advises courses to restrict access to damaged areas and check for hazards such as downed lines before cleanup. Keep a call list for crews so you are not searching for one with a hanging limb over the 9th fairway.

A sample annual rhythm for a North Texas course:

  1. Late fall to January: structural pruning, canopy raising, hazard removals, root pruning near greens and tees.
  2. February to June: no oak pruning; focus on scouting, fertilization, soil work and pest treatments.
  3. Summer: scout weekly, manage drought stress, handle emergencies only.
  4. Early fall: review the inventory, schedule winter work, and plan budgets.

Protecting roots and soil

Many tree problems on courses start below ground. Cart traffic compacts the soil, trenching for irrigation cuts roots, and construction projects change grade. Tools like an AirSpade use compressed air to loosen soil and expose roots without tearing them, so crews can see damage, relieve compaction or work around irrigation lines. Our AirSpade and aeration service is used for exactly that. Deep root fertilization and soil testing can then address nutrient shortfalls found under stressed trees. See our overview of tree fertilization services for how it works.

AirSpade exposing tree roots beside golf turf

If a renovation, a new cart path or a clubhouse expansion is planned, protect trees before the equipment arrives. Fencing, root zone protection and a written plan cost far less than dealing with trees that die two years later.

Budgeting tree care as an investment

Tree work competes for dollars with everything else on the course. The USGA suggests viewing it through a business lens: work that improves turf health and cuts chemical inputs or staff time creates measurable value. Maintenance typically takes a large share of a club’s budget; the USGA cites 25% to 40% of total spending, which is why trimming wasted inputs matters.

A practical way to budget:

  • Put a recurring line in the maintenance budget for pruning, scouting and treatment rather than funding it only after failures.
  • Rank projects by return: a canopy raise that lets a green dry faster and cuts fungicide passes beats cosmetic pruning.
  • Keep a contingency for storm cleanup.
  • Review the inventory annually and shift money toward the areas where turf and tree conflict most.

Our article on preventative tree maintenance lays out why steady care costs less than emergency removals.

Our perspective: move from reactive cutting to proactive health management

We see the same pattern on large properties. A tree gets attention only after a limb falls or a member complains, and then the course pays for the most expensive version of the fix. Our view is that the best tree program is dull: an ISA Certified Arborist walks the course, documents what is there, and sets a calendar that the grounds team can follow.

We also think removal should be the last tool, not the first. A mature oak that can be preserved with structural pruning, root care and oak wilt prevention is worth far more to a course than a stump. When a tree must come down, we would rather it come down safely, with a grapple saw truck or crane, than with a crew hanging in the canopy over a fairway.

And we encourage superintendents to keep the decision in their hands. You know the turf and the golfers. We bring the diagnostics, the equipment and the arborist credentials so that the decision is documented and defensible.

— Amy

Working with Texas Tree Transformations

Texas Tree Transformations provides ISA Certified Arborist consulting, tree surveys, pruning, removal, soil testing, fertilization, insect and disease management and construction protection across Dallas and surrounding counties, for homeowners, estates, HOAs, municipalities and large commercial grounds. If your course or estate needs an inventory, a pruning plan or a hazard removal, see our full list of services or contact us through our main site. For storm damage, our emergency tree service team handles urgent cleanups.

FAQ

Who should be in charge of tree care on a golf course?

The superintendent should lead the tree management plan, and an arborist should contribute to the inventory and the health assessment. Assigning one team member to scout trees regularly improves consistency. Larger removals and risk assessments are best handled by certified arborists.

When is the best time to prune golf course trees?

Winter is usually the main window for pruning and root pruning. In Texas, avoid pruning or wounding oaks from February through June because of oak wilt, and paint any oak wound right away. Your arborist can set a calendar that fits both your turf and your tree species.

How do I know if a tree is hazardous?

Look for dead or hanging limbs, cracks, fungal growth at the base, leaning, and a thinning crown. Internal decay is not always visible, so a certified arborist can use tools such as sonic tomography or coring to check. Do not wait for a storm to find out.

Should a golf course remove trees that shade greens?

Not automatically. Pruning, canopy raising and root pruning often solve the shade, airflow and root competition problems without removal. Remove a tree when it is declining, unsafe, or cannot be managed in a way that protects turf and play.

Sources

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