Salix viminalis
"Phratora vitellinae" adults feed and lay eggs on aspen and willow ("Salix") trees, including "Populus tremula", "Salix borealis", "Salix myrsinifolia" (also known as "Salix nigricans", and a closely related willow "Salix hegetschweileri"),"Salix purpurea", "Salix pentandra", "Salix eleagnos", "Salix fragilis", "Salix viminalis", "Populus balsaminifera", and "Populus nigra".