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Wildlife Spotting

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45.6031, -122.778

Species ID Suggestions

Comments (4)

Well known in the Eugene area on Oregon white oak (Garry oak). Looks like it's caused by the oak gall wasp Besbicus mirabilis. Glad to finally know what's behind these "pop balls"!
http://bugguide.net/node/view/247118 Just found this one too...
I would say Oak Galls... they are caused by gall wasp larvae. Here is a link of quite a few different types of Oak Galls... http://joycegross.com/galls_ca_oak.php
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PublishedOctober 14, 2011

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