What does emerald ash borer look like?

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  • small (1/2 inch)
  • metallic green
  • narrow, bullet-shaped

  • seen June-August
  • flying near canopies of ash trees
  • rarely on the ground
  • adult emerald ash borer on a pennyadult emerald ash borer described

    (photo credits, left to right: Howard Russell, Michigan State University, PA Department of Conservation and Natural Resources (adapted))



  • is between 1/2 inch and 1 1/2 inches
  • creamy white
  • narrow with bell-shaped segments

  • may be seen year-round
  • in cambium layer of ash trees
  • emerald ash borer larva emerald ash borer larvae with ruler

    (photo credits, left to right: PA Department of Conservation and Natural Resources, David Cappaert, Bugwood.org)

    Before you report your beetle, see if it looks like one of the EAB lookalikes:

    lookalikes of emerald ash borer