Tree disease treatment in San Antonio starts with a real diagnosis — drought stress, hypoxylon canker, oak wilt, or pests — so we treat what's actually wrong and keep the trees that can be saved standing.
A thinning canopy or dead branch doesn't always mean removal. Many San Antonio trees are struggling with drought stress, poor soil, root damage, or disease — problems that a proper diagnosis and care plan can often reverse. Cowboy Tree Care And Services evaluates the whole tree before recommending anything, because the cheapest solution is usually the one that keeps a healthy tree standing.
Central Texas puts real pressure on trees: alkaline, shallow soils over limestone, long droughts broken by heavy rain, hard freezes like Winter Storm Uri, and diseases such as oak wilt and hypoxylon canker. We read those stressors in the tree and build a plan around what it actually needs.

Signs You Need Tree Health Care
Thinning or dying canopy
Progressive leaf loss, bare branches, or dieback from the top down.
Discolored leaves
Yellowing, browning margins, or early fall color out of season.
Bark and trunk signs
Cankers, oozing, sloughing bark, or fungal conks at the base.
Sudden decline
A previously healthy tree going downhill fast — often a red flag for oak wilt.
What Our Tree Health Care Includes
Every tree health care job in San Antonio is scoped in writing, so you know exactly what you're getting. Here's what's covered:
Whole-tree evaluation
Species, site, soil, roots, trunk, and canopy assessed — not just the symptom you noticed.
Diagnosis
We identify the cause and whether it's treatable, spreadable, or terminal, and say so plainly.
Deep-root fertilization
Correcting nutrient deficiencies and iron chlorosis common in our high-pH soils.
Soil & mulch work
Improving aeration, drainage, and moisture retention around the root zone.
Targeted pruning
Removing diseased or dead wood to reduce spread and hazard.
Written care plan
Clear steps, timing, and honest expectations — including when removal is the smart call.
Common San Antonio Tree Problems We Diagnose
We see the same handful of issues across Bexar County and the Hill Country:
- Drought stress: Scorched leaf margins, early leaf drop, and dieback in the upper canopy on shallow-soil live oaks.
- Hypoxylon canker: An opportunistic fungus that colonizes already-stressed trees; the tan-to-silver spore mats under sloughing bark are usually a late, serious sign.
- Oak wilt: A lethal, spreadable disease of oaks needing its own management plan (see our oak-wilt service).
- Iron chlorosis: Yellowing leaves with green veins from our high-pH soils locking up iron.
- Ball moss & mistletoe: Epiphytes and parasites that tell us something about canopy density and tree vigor.
Treatment & Care Plans
Depending on the diagnosis, a care plan may include deep-root fertilization to correct nutrient deficiencies, soil work to improve aeration and drainage, targeted pruning to remove diseased wood, proper mulching, a watering schedule tuned to our climate, or trunk injections for specific pests and diseases. Where a disease is untreatable, we'll say so plainly and talk through removal and replacement instead of selling you treatments that won't work.
Our Tree Health Care Process
- 1
Full tree evaluation
We assess species, site, soil, roots, trunk, and canopy — not just the symptom you noticed.
- 2
Diagnosis
We identify the actual cause and whether it's treatable, spreadable, or terminal.
- 3
Written care plan
Clear steps, timing, and honest expectations — including when removal is the smart choice.
- 4
Treatment & follow-up
Fertilization, soil work, pruning, or injection, with a plan to monitor results.
Ready for Tree Health Care in San Antonio?
Call for a free, written estimate — same-day and emergency service available across San Antonio, Bexar County & the Texas Hill Country.
What Affects the Price
We don't post one-size-fits-all prices, because no two trees are the same. Every job is quoted in writing after we see it. These are the factors that move the number up or down:
- Number and size of trees assessed
- Type of treatment (soil work, fertilization, injection, pruning)
- Diagnostic complexity and whether lab confirmation is needed
- Follow-up visits and monitoring
Why San Antonio Chooses Us for Tree Health Care
Diagnose before we cut
The cheapest fix is usually the one that keeps a healthy tree standing — we look before we recommend.
Central Texas expertise
We read the stressors here: shallow limestone soils, drought, Uri freeze damage, oak wilt.
No treatments that won't work
Where a disease is untreatable (like trunk hypoxylon), we say so instead of selling you a cure.
Follow-through
We monitor results and adjust the plan across seasons.
Tree Health Care Across San Antonio & Beyond
We assess and treat stressed trees across Bexar County, with heavy demand in shallow-soil, drought-prone areas like Stone Oak and the 1604/281 corridor. For oaks specifically, see our dedicated oak-wilt service.
Don't see your area? We serve 68 communities across Bexar County and the Hill Country.
