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What Is The Emerald Ash Borer?

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Emerald Ash Borer is a highly invasive beetle imported from Asia. Once the EAB attacks a tree, immediate action is required. In the early stages, the tree may be saved by professional pesticide application. If the attack is not stopped in time and the tree dies, immediate removal can help stop the beetle from spreading to vulnerable nearby trees.

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Symptoms of Ash trees that might have EAB

  • Thinning leaves in tree crown

  • Branch die back

  • Back splitting along branches

  • New sprouts on the trunk

  • Increased woodpecker activity

Symptoms of Ash trees that definitely have EAB

  • D-shaped exit holes 1/8-inch wide

  • S-shaped tunnels under the bark

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