red aphids on goldenrod - Uroleucon Ackworth, Warren County, Iowa, USA August 22, 2009 Size: ~2 mm
Hundreds of aphids were on stems of Canada goldenrod (Solidago canadensis) in grassy old field.
Contributed by John Pearson on 22 August, 2009 - 4:36pm Last updated 13 October, 2009 - 8:36pm |