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Photo#282128
leaf gall on pin oak #2 - Dryocosmus quercuspalustris

leaf gall on pin oak #2 - Dryocosmus quercuspalustris
Ackworth, Warren County, Iowa, USA
May 31, 2009
Size: ~8 mm diameter
Leaf gall on margin of ornamental pin oak (Quercus palustris) tree in rural yard. This particular leaf is newly emerged, so is much smaller than a typical pin oak leaf. View of upper leaf surface.

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leaf gall on pin oak #2 - Dryocosmus quercuspalustris leaf gall on pin oak #2 - Dryocosmus quercuspalustris leaf gall on pin oak #2 - Dryocosmus quercuspalustris