Seedlings of four winter annual weeds that act as alternate hosts of soybean cyst nematode (SCN)

 

                                          

purple deadnettle (Lamium purpureum)                    henbit (Lamium amplexicaule)

 

                                

field pennycress (Thlaspi arvense)                         Shepherd's-purse ( Capsella bursa-pastoris)