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Photo#652246
green gall - Phylloxera texana

green gall - Phylloxera texana
Cedar Rapids/ICNC, Linn County, Iowa, USA
June 4, 2012
top of leaf

Images of this individual: tag all
green gall - Phylloxera texana green gall - Phylloxera texana

Moved
Moved from Phylloxera.

Phylloxera texana
This is the first gall I've seen on BG or iNat that matches Phylloxera texana, which is distinctive for opening at the apex on the upper side, with only a small portion of the gall below the leaf. The only discrepancy is that that gall is only known from pecan, which seems rare if present at all in Iowa?

 
Pecan in Iowa
Pecan (Carya illinoensis) does occur in Iowa naturally along the Mississippi River in the southeast part of the state, but Linn County is outside of that small range.

Moved
Moved from Frass.
This has to be hickory, and it seems like a pretty distinctive gall.

Frassed
Moved from Unidentified Galls.

Any chance this was really a hickory?
Reminds me of a Phylloxera gall.

 
recheck
Joe, can you repost the plant photo for a recheck of its ID? Ash and hickory look a lot alike...

Moved
Moved from ID Request.

Host plant...
...is Green Ash (Fraxinus pennsylvanica).

 
Correction
I agree the plant must be a hickory (Carya).

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