galinsoga parviflora, setaria viridis, amaranthus retroflexus, chenopodium album, cirsium arvense, convolvulus arvensis, crepis foetida, daucus carota, digitaria sanguinalis, echinochloa crus-galli, elymus repens, erigeron canadensis, fumaria schleicheri, lactuca serriola, polygonum aviculare, sonchus oleraceus, stellaria media, tanacetum vulgare