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Photo#196570
Aphids - Pterocomma
Copyright © 2008 Micki Killoran

Aphids - Pterocomma
Pagosa Springs, Archuleta County, Colorado, USA
June 30, 2008
Size: 1 to 2.5 mm, mixed
Lots of these on a small willow tree, and they are damaging it. What is the best way to get rid of them? The ants were busy tending them, I noticed, as is seen in the next picture.

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Aphids - Pterocomma Aphids - Pterocomma
Contributed by Micki Killoran on 2 July, 2008 - 10:06am
Last updated 2 December, 2009 - 8:01pm

Moved
Moved from Aphids. Agreed--Cranshaw's image of the black willow aphid (Pterocomma smithiae) and Marshall's image of P. bicolor both look like this. Not sure what sources I can trust, but it appears that both species feed on both willow and poplar.
… Charley Eiseman, 2 December, 2009 - 8:01pm

Pterocomma, i suppose
(see Marshall 2006, p. 152:5; Cranshaw's Garden Insects of N.America, p. 308:C)
… v belov, 15 February, 2009 - 12:22pm

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