portulaca oleracea, capsella bursa-pastoris, amaranthus retroflexus, chenopodium album, convolvulus arvensis, digitaria sanguinalis, echinochloa crus-galli, setaria pumila, solanum nigrum, sonchus arvensis, sorghum halepense, galinsoga parviflora, persicaria lapathifolia, stellaria media, veronica persica