Several weeds serve as alternative soybean cyst nematode (SCN) hosts. Still, the relative reproductive capacity of SCN HG types (Heterodera glycines type) on weed hosts to is not well understood. This study examined reproduction three South Dakota endemic populations—PSCN-1 (HG 0), PSCN-2 2.5.7), and PSCN-3 7)—on purple deadnettle, field pennycress, henbit. The Relative Female Index (RFI) was c...