Southern Maine Tree Health Specialists

Save the trees you can't replace.

Emerald ash borer, hemlock woolly adelgid and browntail moth are killing trees across York and Cumberland counties. Tree Medics diagnoses the problem and treats it with science-based programs, before it's too late.

Locally owned & operated Founded by a Registered Maine Guide Residential, commercial & municipal
Tree Medics technician injecting an ash treeInspecting hemlock needles for woolly adelgid
Treat, don't remove.
Saving a healthy tree is often the smarter investment.
Active in Southern MaineEmerald ash borerHemlock woolly adelgidBrowntail mothWinter mothBeech leaf disease
Why it matters now

Maine's trees are under attack. Early action is what saves them.

Tree Medics is Southern Maine's tree health specialist. We help homeowners, businesses and municipalities protect their landscapes from invasive insects, disease and environmental stress, and our goal is simple: save trees whenever possible and help them thrive for generations.

Schedule an assessment
95%+of untreated hemlocks can be killed or badly damaged by woolly adelgid
~2 yrsof protection from a typical emerald ash borer trunk injection
16Southern Maine towns served, from Portland to York
3client types: homeowners, businesses and municipalities
What we treat

Tree care services built around Maine's worst pests

Every property is different, so every program starts with a diagnosis, not a sales pitch.

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Emerald Ash Borer Treatment in Southern MaineInsect

Emerald Ash Borer Treatment

Protect valuable ash trees with trunk injections before the beetle does irreversible damage. Early treatment keeps healthy ash standing for years.

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Hemlock Woolly Adelgid Treatment in Southern MaineInsect

Hemlock Woolly Adelgid Treatment

Targeted programs to protect one of Maine’s most iconic trees from the adelgid infestations spreading up the coast.

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Browntail Moth Management in Southern MaineInsect

Browntail Moth Management

Reduce browntail populations to protect your trees, and your family, from the caterpillars’ rash-causing hairs.

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Tree Injections in Southern MaineMethod

Tree Injections

Treatment delivered directly into the tree’s vascular system, with minimal impact on the soil, water and plants around it.

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Tree Health Assessments in Southern MaineDiagnosis

Tree Health Assessments

A professional evaluation to find insect damage, disease and stress, plus a clear plan for what to treat and when.

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Invasive Plant Management in Southern MaineHabitat

Invasive Plant Management

Control knotweed, bittersweet, buckthorn, honeysuckle and other aggressive plants that crowd out Maine’s native landscape.

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Woodpecker flecking on an ash tree infested with emerald ash borer
Know the signs

Caught early, an ash tree can often be saved.

Emerald ash borer is now visible on roadside trees across York and parts of Cumberland County. Call us if you notice any of these on your ash trees:

  • Bark "blonding"Light patches where woodpeckers have stripped bark to reach larvae.
  • Vertical bark splitsCracks over the S-shaped tunnels the larvae carve beneath the bark.
  • Sprouts on the trunkClusters of new shoots low on the tree, a classic stress response.
  • Upper canopy diebackThinning, leafless branches starting at the top of the crown.
Get your ash tree checked
How it works

Three steps to healthier trees

Arborist assessing tree health01

Assess

We walk your property, identify each tree and look for insects, disease and stress.

Tree injection treatment02

Treat

You get an honest recommendation, then a targeted treatment timed to the pest's life cycle.

Healthy tree canopy03

Protect

We monitor and re-treat on schedule, so your trees stay protected for the long run.

Plan ahead

The tree health calendar for Southern Maine

Many treatments only work in a narrow window. Here's when we typically do what.

 
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F
M
A
M
J
J
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D
Emerald ash borer injections
 
 
 
 
 
 
 
 
 
 
 
 
Hemlock woolly adelgid treatment
 
 
 
 
 
 
 
 
 
 
 
 
Browntail moth web removal
 
 
 
 
 
 
 
 
 
 
 
 
Invasive plant control
 
 
 
 
 
 
 
 
 
 
 
 
Tree health assessments
 
 
 
 
 
 
 
 
 
 
 
 

General guide only. Exact timing depends on weather, treatment and site conditions.

Erik Hanson, founder of Tree Medics
Erik HansonFounder · Registered Maine Guide
About Tree Medics

Built on a passion for Maine's forests.

Tree Medics was founded by Registered Maine Guide Erik Hanson to protect the trees that define our landscapes. Every property and every tree is different, so we take the time to evaluate each one and recommend the most effective course of action, whether that's a treasured backyard ash, a stand of hemlocks or an invasive takeover.

  • Locally owned in Southern Maine
  • Focused on preservation
  • Science-based treatment
  • Honest recommendations
  • Environmentally responsible
  • Long-term stewardship

More about Tree Medics

Service area

Proudly serving Southern Maine

Scarborough Portland South Portland Cape Elizabeth Falmouth Cumberland Gorham Windham Buxton Hollis Saco Biddeford Kennebunk Kennebunkport Wells York

…and surrounding communities in York and Cumberland counties. See the full service area →

FAQ

Questions we hear every week

Can my ash tree still be saved from emerald ash borer?

Often, yes, if it is treated while the canopy is still mostly healthy. Trunk injections protect the tree from the inside. Once an ash has lost a large share of its canopy, treatment is much less likely to work, which is why an early assessment matters.

How often does an ash tree need to be treated?

The trunk injections commonly used against emerald ash borer typically protect a tree for about two years, so protection is kept up on a regular cycle for as long as the beetle is active in the area.

When should browntail moth be dealt with?

The best window is fall through early spring (roughly October to March), when the caterpillars are sheltering in their winter webs. Removing and destroying those webs before spring cuts down on the rash-causing hairs later in the year.

Is tree injection better for the environment than spraying?

Injection places the treatment directly into the tree’s vascular system instead of spraying it into the air, which limits drift onto neighboring plants, water and people. It is often the preferred option near wells, water and play areas.

What areas does Tree Medics serve?

We serve homeowners, businesses, towns and property managers across Southern Maine, including Scarborough, Portland, South Portland, Cape Elizabeth, Falmouth, Cumberland, Gorham, Windham, Buxton, Hollis, Saco, Biddeford, Kennebunk, Kennebunkport, Wells and York, plus surrounding communities.

Do you work with towns, HOAs and commercial properties?

Yes. Tree Medics provides residential, commercial and municipal tree health programs, from single specimen trees to large properties.

Worried about a tree?

Many tree health problems can be managed when they're caught early. Reach out today for a professional evaluation.