The #1 threat to ash trees

Emerald Ash Borer (EAB)

An invasive metallic-green beetle that has killed hundreds of millions of ash trees across North America. Untreated infested ash trees usually die within 2–4 years.

Emerald Ash Borer beetle — detailed side view showing metallic green and gold coloring

What is the Emerald Ash Borer?

EAB (Agrilus planipennis) is a small, bright metallic-green beetle native to Asia. Adults are about 1/2 inch long. The larvae do the real damage — they tunnel under the bark and cut off the tree's ability to move water and nutrients. Every untreated ash tree in an infested area is at risk.

How to spot EAB on your ash tree

Real-world example of an ash tree with Emerald Ash Borer damage — severe canopy thinning and dieback starting at the top — A real ash tree showing classic EAB canopy decline — notice the sparse, dying branches at the top and the remaining green foliage concentrated lower on the trunk. This is what untreated EAB looks like in your neighborhood.

Canopy thinning or dieback starting at the top of the tree
D-shaped exit holes about 1/8 inch wide in the bark
S-shaped tunnels (galleries) under the bark when it peels
New shoots (epicormic sprouts) growing from the trunk or base
Heavy woodpecker activity stripping the bark ('blonding')
Vertical splits in the bark over old larval galleries

Don't wait until you see damage

By the time canopy dieback is obvious, the tree is often more than 30% compromised. Preventative treatment of healthy ash trees in EAB-confirmed areas is the most reliable way to save them.

How we treat EAB

We only use trunk injections — the most efficient method. A single application protects your ash for up to two full growing seasons, with no spraying and no soil drench. Licensed by the State of Minnesota with a commercial pesticide applicator license, certified to perform trunk injections.

Request an ash tree evaluation

For more info: www.emeraldashborer.info