zea mays, convolvulus arvensis, bothriochloa ischaemum, chenopodium album, euphorbia exigua, fallopia convolvulus, helminthotheca echioides, kickxia spuria, lipandra polysperma, lysimachia foemina, matricaria chamomilla, mentha arvensis, mercurialis annua, plantago lanceolata, polygonum bellardii, setaria pumila, solanum nigrum, sonchus oleraceus, stachys annua, sisymbrium officinale