Aphis nasturtii
is a widely distributed polyphagous aphid species.
Common names. Buckthorn aphid, Buckthorn-potato aphid.
Distribution. This aphid is nearly globally distributed, located in all but the coldest terrestrial habitats.
Host associations. It has a broad host range, having been recorded from species of over 60 plant families.
Economic importance. It is particularly important on species of Helianthus, including sunflower, and lettuce (Asteraceae), watercress (Brassicaceae), parseley (Apiaceae), potato (Solanaceae), beets (Polygonaceae) and buckthorn (Rhamnaceae) but also attacks many other plant families. It has been implicated in the transmission of at least 15 plant viruses.
See also. Taxonomy at Aphid Species File. Aphids on the World's Plants. Literature references.
