Monday, September 6, 2010

Antron quercusechinus

This small gall is created on oak leaves  by Antron quercusechinus, the Urchin gall wasp. It chemically induces the tree to grow the gall in which it lives. Quite a neat trick. These were on a Blue Oak in Round Valley.
Antron quercusechinus gall on blue oak leaf, 9/6/10

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