Kukolola kwa bowa ndi chinthu chosayembekezereka ndipo chimadalira zinthu zambiri: nthawi imodzi, osankha bowa amawabweretsa mu zidebe, ndipo zina zimatheka kuti asapeze bowa limodzi m'nkhalango. Choncho, chaka chilichonse kumapeto kwa August - oyambirira September, kukolola bowa kumayamba m'nyengo yozizira. Ngati mukugwira zokolola za bowa zoyera kugwa, mutha kukhala otsimikiza kuti muli ndi mbale yokonzedwa bwino yokonzekera yokonzekera.
