The life cycle starts with the fungus overwintering in crop residues or wild members of the Solanaceae family, such as black nightshade.
Solanum | Solanum dulcamara | Zanthoxylum americanum | Solanum carolinense | Solanum viarum | Solanum sisymbriifolium | Solanum rostratum | Solanum laxum | Solanum americanum | Mined and discoloured leaves of ''Solanum dulcamara | Mezium americanum |