echinochloa crus-galli, digitaria sanguinalis, amaranthus retroflexus, paspalum vaginatum, sorghum halepense, chenopodium album, convolvulus arvensis, cynodon dactylon, echinochloa colonum, malva sylvestris, poa compressa, portulaca oleracea, setaria pumila, setaria verticillata, solanum nigrum, sonchus oleraceus, trifolium repens