erigeron canadensis, symphyotrichum squamatum, amaranthus hybridus, brassica napus, chenopodium album, digitaria sanguinalis, equisetum arvense, erigeron floribundus, ipomoea purpurea, lolium arundinaceum, solanum nigrum, sonchus oleraceus, agrostis stolonifera, amaranthus retroflexus, dactylis glomerata, daucus carota, echinochloa crus-galli, melilotus albus, oxalis corniculata, plantago major, ranunculus repens, stellaria media, trifolium pratense