a common North American aphid species attacking mostly umbells and composites
Common names. Dogwood aphid, Sunflower aphid.
Distribution. This aphid is found mostly in northwestern United States and Canada.
Host associations. It has a narrow host range being recorded from many species among 6 plant families including, Asteraceae and Apiaceae, but has been recorded from Cornus (Cornaceae) and Epilobium (Onagraceae) and others.
Economic importance. It is particularly important on wild carrot, celery, parsnip, and various species of composites. It has been implicated in the transmission of at least 7 plant viruses.