Buckthorn-potato aphid
Aphis nasturtii

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.