convolvulus arvensis, hibiscus trionum, amaranthus retroflexus, chenopodium album, cirsium arvense, echinochloa crus-galli, setaria viridis, cichorium intybus, daucus carota, erigeron canadensis, persicaria lapathifolia, polygonum aviculare, senecio vernalis, sinapis arvensis, sonchus asper, sonchus oleraceus, viola arvensis