zea mays, alopecurus myosuroides, cirsium arvense, convolvulus arvensis, daucus carota, digitaria sanguinalis, echinochloa crus-galli, helminthotheca echioides, lysimachia arvensis, medicago lupulina, persicaria lapathifolia, polygonum aviculare, rapistrum rugosum, setaria viridis, solanum nigrum, sonchus oleraceus