zea mays, cirsium arvense, setaria pumila, avena fatua, echinochloa crus-galli, centaurea cyanus, convolvulus arvensis, equisetum arvense, erysimum cheiranthoides, euphorbia helioscopia, galeopsis tetrahit, galium aparine, oxalis stricta, persicaria amphibia, persicaria lapathifolia, raphanus raphanistrum, tripleurospermum inodorum