CLOSED: Alien Alder Antagonists

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wannadanc Olympia, WA May 29, 2013

Just noticed that the huge native red alder tree has been riddled with some leaf eating critter. Closer examination reveals leaves to be covered with these pockets/blisters/bumps. Who is living in there? Thank you for any help you can render.

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Flapdoodle Minot, ND May 29, 2013

Most likely caused by a gall mite, Eriophyes laevis - http://adventuresofawildlife.files.wordpress.com/2013/01/eriophyes-laevis-on-alder.jpg

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wannadanc Olympia, WA May 29, 2013

Thank you so very much!!!!!!!!!!!!!

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