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Photos of the emerald ash borer
and the damage it does
High resolution
versions of these photos are available upon request.
Contact Jim Barlow, (217) 333-5802 or jebarlow@uiuc.edu.
Copyright photos
by James E. Appleby, University of Illinois
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The
emerald ash borer, left, is about one-half inch long. Under
bright light it is dark green. It commonly is seen during
mid-summer crawling on branches and trunks of ash trees.
Its larvae bore into and under the bark, and tunnel in the
underlying sapwood.
At
a glance, the emerald ash borer may be confused with
the tiger
beetle, right, a bright green native beetle. The adult
tiger beetle is often seen on soil, gravel, stones, and
logs, in sunny locations where it feeds on other insects |
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A
piece of ash firewood, left, with its bark removed, exposing
serpentine larval galleries – the S-shaped tunnels dug
by the larvae of the emerald ash borer.
At right, larvae are seen in action boring tunnels under the
bark of ash tree. |
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Under
the bark of a dead ash tree, left, extensive tunneling of
the emerald ash borer larvae is readily visible.
At right,
the S-shaped tunneling is under way. |
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On
the trunk of the ash tree, left, are two D-shaped holes, a definitive
signature
of the emerald ash borer.
At
right, Another tell-tale sign that emerald ash borers have infested
a tree: new sprouts shooting off the base of a dying ash tree.
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