galinsoga parviflora, stellaria media, chenopodium album, erysimum cheiranthoides, poa annua, capsella bursa-pastoris, lamium purpureum, urtica urens, agrostis stolonifera, convolvulus arvensis, erigeron canadensis, senecio vulgaris, setaria viridis, viola arvensis, euphorbia helioscopia, euphorbia peplus, fumaria officinalis, sonchus oleraceus, veronica agrestis