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Emerald ash borer - Agrilus planipennis Ann Arbor, Washtenaw County, Michigan, USA
EAB larvae cut galleries in the ash phloem layer. After four larval instars, the larva excavates a prepupal chamber (r) in the bark or sapwood.
Contributed by David Cappaert on 22 May, 2006 - 8:17am Last updated 31 August, 2015 - 12:18pm |
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