Original post <8 July 2016>
Images: R.L. Rosetta, Extension Nursery Integrated Pest Management, Department of Horticulture, Oregon State University/NWREC.
Black bean aphid infestation on nasturtium
Black bean aphid infestation on nasturtium
Severe black bean aphid infestation on nasturtium
Scyminae, possibly a Scymnus sp. feeding on black bean aphid on nasturtium