zea mays, bothriochloa ischaemum, setaria viridis, amaranthus blitum, amaranthus retroflexus, chenopodium album, cirsium arvense, convolvulus arvensis, digitaria sanguinalis, equisetum arvense, euphorbia exigua, lolium temulentum, mercurialis annua, persicaria maculosa, polygonum aviculare, polygonum bellardii, portulaca oleracea, solanum nigrum, sonchus oleraceus, cichorium intybus, daucus carota