zea mays, echinochloa crus-galli, helminthotheca echioides, chenopodium album, cynodon dactylon, daucus carota, digitaria sanguinalis, lysimachia arvensis, medicago lupulina, medicago sativa, phragmites australis, portulaca oleracea, rapistrum rugosum, setaria verticillata, setaria viridis, solanum nigrum, sonchus oleraceus