Nogales
Santa Cruz County, Arizona
Coordinates: 31.360410, -110.936396
Elevation: 3,855 ft
April 11, 2022
Galls measured between 5 mm and 7 mm long
Found on two Cottonwood trees (Populus deltoides)
Determined by Salvador Vitanza
Confirmed by Joshua C’deBaca
Hemiptera-Sternorrhyncha-Aphididae-Pemphigus populitransversus-Poplar Petiole Gall Aphid GALL (D)
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