Emerald Ash Borer Treatment
Protect Your Ash Trees from Emerald Ash Borer
Emerald Ash Borer (EAB) is an invasive beetle that has devastated ash tree populations across the U.S., including Northwest Indiana. Since its discovery in 2002, EAB has been responsible for the death of tens of millions of ash trees.
Signs Your Ash Tree May Be Infested by Emerald Ash Borer
Early detection is key to saving your ash tree from emerald ash borer (EAB) damage. Look out for the following signs:
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Thinning Canopy:
One of the earliest symptoms of infestation is a gradual thinning of the leaves in the upper canopy. You may notice fewer leaves, bare branches, or an overall decline in the tree’s fullness. -
D-Shaped Exit Holes:
Adult beetles leave small, D-shaped holes (about 1/8 inch wide) in the bark as they emerge. These are a telltale sign of EAB activity, usually located on the trunk or larger branches. -
Sucker Growth:
Stressed trees often respond by sending out shoots, or "suckers," from the base of the trunk or along the bark. This sudden new growth is a sign the tree is under attack and trying to survive. -
Woodpecker Damage:
If you’re seeing increased woodpecker activity—especially flaking or missing bark—it could be because they’re feeding on EAB larvae under the bark. This behavior often indicates an active infestation. -
Bark Splitting & Larval Tunnels:
In later stages, the bark may split vertically, revealing winding, S-shaped tunnels just beneath the surface. These tunnels are created by EAB larvae as they feed on the tree's vascular tissue.
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If you observe one or more of these symptoms, your tree could be in danger. Prompt treatment can significantly increase the chances of saving it.
