First documented sighting in North America was at the Holden Arboretum in Ohio in 2021. This aphid is native to Europe and feeds exclusively on Garlic Mustard. (Holden Arboretum) (Bugguide)
5/19/2024 Garlic Mustard plant infested with aphids
5/19/2024
5/19/2024
5/19/2024
5/18/2024 Leaf damage from aphids
