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Emerald Ash Borer

Emerald Ash Borer. Agrilus planipennis. Some Facts. Originally from Asia First US detection was in 2002 Effects all major North American Ash Species Core infestation is concentrated in SE Michigan. Approx 20 mm long and 4 mm wide. EAB Larvae. Spread.

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Emerald Ash Borer

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  1. Emerald Ash Borer Agrilusplanipennis

  2. Some Facts • Originally from Asia • First US detection was in 2002 • Effects all major North American Ash Species • Core infestation is concentrated in SE Michigan

  3. Approx 20 mm long and 4 mm wide

  4. EAB Larvae

  5. Spread • Have a presence in 14 states and parts of southern Canada • Ash is a popular type of firewood • Thought to be spread by transfer of firewood

  6. Distribution of Ash

  7. EAB Infestation

  8. Mechanism of attack • Adults lay eggs in crevices of bark • Larvae burrow into bark • Larvae consume cambium and phloem, tree is girdled.

  9. Detection • Canopy dieback • Discolored leaves • Bark Splitting • D-shaped exit wounds

  10. Bark Splitting

  11. Canopy dieback

  12. D-shaped exit wound

  13. Effects on us • Ash wood is tough, strong, and elastic. • Used in manufacture of furniture • 8 billion ash trees valued at $280 billion

  14. Control and Eradication • Quarantine zones • Release of wasps • Various insecticides

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