echinochloa crus-galli, amaranthus hybridus, convolvulus arvensis, solanum tuberosum, amaranthus retroflexus, ambrosia artemisiifolia, artemisia vulgaris, atriplex patula, capsella bursa-pastoris, chenopodium album, cirsium arvense, elymus repens, erigeron canadensis, euphorbia helioscopia, galinsoga parviflora, lolium perenne, persicaria lapathifolia, plantago major, polygonum aviculare, setaria pumila