Mvura zhinji yakanaya yakaparadza goho mumapurazi akazvimirira edunhu reSverdlovsk. Ural Research Institute of Agriculture yakaona kuti mbatatisi mbeu dzakabatwa nechirwere chefungal - kunonoka blight, iyo inomisa zvachose maitiro e photosynthesis.
Zvaikwanisika kuchengetedza kudyara chete munharaunda yakarongeka, uko kurapwa kwemumunda nguva dzose nefungicides kwaiitwa. Uye mumapurazi akati wandei, dambudziko rakagadziriswa nekusarudza mhando dzembatatisi dzinoshingirira kunonoka blight. Pakati pavo, somuenzaniso, Alaska, Shah, Barguzin, Gornyak.
