How to tell if your ash tree has an emerald ash borer infestation

Have you or your neighbors purchased or received firewood, landscape trees, logs, timber, or branches from Michigan in the last 5 years? Emerald Ash Borer exit hole.

After you have determined that you have an ash tree, check for the following symptoms:

Distinct, D-shaped exit holes in the bark
Serpentine-shaped tunnels under the bark on the surface of the wood
Young sprout growth clustered at the base of the tree
Unusual activity by woodpeckers
Die-back on the top third of the tree
Vertical splits in the bark

Emerald ash borer is a death sentence for ash trees infected with the larvae of this beetle, killing the ash tree within three to five years of infestation.

The larvae feed on the cambium layer, the tree’s live tissue just beneath the bark. This cuts off the tree’s nutrients and water and essentially starves the tree to death. Larvae over winter beneath the bark and can be inadvertently transported via firewood, logs, or nursery stock.


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	>>Home > How to tell if your ash tree has an emerald ash borer infestation Have you or your neighbors purchased or received firewood, landscape trees, logs, timber, or branches from Michigan in the last 5 years? After you have determined that you have an ash tree, check for the following symptoms: Distinct, D-shaped exit holes in the bark Serpentine-shaped tunnels under the bark on the surface of the wood Young sprout growth clustered at the base of the tree Unusual activity by woodpeckers Die-back on the top third of the tree Vertical splits in the bark Emerald ash borer is a death sentence for ash trees infected with the larvae of this beetle, killing the ash tree within three to five years of infestation. The larvae feed on the cambium layer, the tree’s live tissue just beneath the bark. This cuts off the tree’s nutrients and water and essentially starves the tree to death. Larvae over winter beneath the bark and can be inadvertently transported via firewood, logs, or nursery stock. Read also: White Ash Tree

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How to tell if your ash tree has an emerald ash borer infestation