Buxton · York County

Hemlock Woolly Adelgid Treatment in Buxton, ME

Hemlock woolly adelgid is established in neighboring towns. Tree Medics inspects and treats hemlocks across York County to keep them healthy.

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Inspecting a hemlock branch for woolly adelgid
CountyYork County
HWA nearbyEstablished
Check twigsTwice a year
One treatment can last4+ years

Hemlock woolly adelgid is a tiny, aphid-like insect from Asia that feeds on the sap of eastern hemlocks. Over several years, a heavy infestation can starve a hemlock of the stored energy it needs to grow, and the tree slowly declines. York County is entirely within Maine’s hemlock woolly adelgid quarantine.[1]

Hemlock woolly adelgid in Buxton

As of December 2024, Buxton was not on the Maine Forest Service’s list of towns where hemlock woolly adelgid is established, but the pest is established in neighboring towns and is widespread along the southern coast.[2]

Treatment options for hemlocks

Long-lastingImidaclopridFor hemlocks under three feet in diameter, one soil application can keep adelgid below damaging levels for more than four years.[3] It moves slowly, taking a year or more to reach the top of a large tree.[4]
Fast-actingDinotefuranMoves through the tree faster, which makes it useful for heavily infested hemlocks, but protects for only one to two years.[4]
Small treesOil and soapHorticultural oil and insecticidal soap can work on small trees, but need thorough coverage once or twice a year.[3]

How we treat hemlocks in Buxton

Step 1InspectWe check the underside of branches for adelgid and judge how much healthy foliage the tree still has.
Step 2Choose the right treatmentHeavily infested trees may need fast-acting treatment first, while healthier trees can get long-lasting protection.
Step 3MonitorWe keep an eye on treated hemlocks so they can be retreated when needed.
Hemlocks respond best when treated early.

Systemic treatments rely on the tree to move them up into its branches. A hemlock with plenty of healthy foliage takes up treatment far better than one that is already in steep decline. Untreated infested hemlocks are likely to die within four to ten years.[4]

Why hemlocks matter

Eastern hemlocks are long-lived, shade-tolerant evergreens that provide year-round screening, shade streams and hold soil on slopes. Losing a mature hemlock changes a property, and replacing one takes decades.

Want the full picture? Read our complete guide to hemlock woolly adelgid treatment in Southern Maine.

Hemlocks and woods in Buxton

Local landscapeBuxton’s 60-acre Pleasant Point Park on Simpson Road overlooks the Saco River and is described by the town as some of the most pristine land in Buxton, with several hiking trails.[5]
Local landscapeBuxton voters approved purchasing Tory Hill Park in June 2025, making it the town’s newest park.[6]
Local landscapeSaco Valley Land Trust volunteers clear fallen logs and branches each spring along the Moses Woodman Preserve’s 1.5 miles of trails, which offer views of the Saco River.[7]

Hemlock Woolly Adelgid help near Buxton

Tree Medics is based in Biddeford and works throughout Southern Maine. We also offer hemlock woolly adelgid services in nearby towns:

Gorham, MEStandish, MESaco, MEScarborough, ME

See all tree care in Buxton.

Sources

  1. Maine DACF: Hemlock woolly adelgid quarantine counties and towns
  2. Maine Forest Service: Hemlock woolly adelgid overview and distribution
  3. Maine Forest Service: Hemlock woolly adelgid fact sheet
  4. Michigan Invasive Species Program: Plan to treat trees for hemlock woolly adelgid (2026)
  5. Town of Buxton: Town Parks (2025)
  6. Town of Buxton: Town Parks (2025)
  7. Bangor Daily News: Saco Valley Land Trust will host a spring trail cleanup at Moses Woodman Preserve on April 14 (2024)
FAQ

Hemlock Woolly Adelgid in Buxton: common questions

Is hemlock woolly adelgid in Buxton?

As of December 2024, Buxton was not on the Maine Forest Service’s list of towns where it is established, but it is established in neighboring towns, so hemlocks in Buxton are worth checking twice a year.

How long does treatment take to work?

Imidacloprid moves slowly and can take a year or more to reach the top of a large tree. Dinotefuran moves faster and is often used on heavily infested trees.

Can a hemlock with adelgid be saved?

Often, yes, especially when treatment starts while the tree still has plenty of healthy foliage. Untreated infested hemlocks are likely to die within four to ten years.

What does hemlock woolly adelgid look like?

Look for small white, cottony masses on the underside of young hemlock twigs at the base of the needles. Check twice a year, at the start and end of Daylight Saving Time.

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Worried about a tree?

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

(207) 303-7291 SaveMyTrees@TreeMedics.com

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