Izitendi ezimbi ezibangelwa ukubola kwezingcezu zembewu kungaba yinkinga enkulu uma isimo sezulu esipholile nesimanzi siba khona ngokushesha ngemva kokutshala. Amagciwane amaningana angabangela izilimo eziyizigaxa zembewu ukuthi zibole ngaphambi kokuvela.
I-Fusarium iyisikhunta esivame kakhulu esibangela ukubola kwezingcezu zembewu. Amagciwane okubola okuthambile avame ukuhlasela izilimo eziyizigaxa ezine-Fusarium, okwenza imbewu ihlasele
ukubola ngokushesha okukhulu. Isikhunta se-blight sekwephuzile (bheka ikhasi 41) kanye ne-Pythium spp. (bheka ikhasi 79) kungase futhi kubangele ukubola kwezingcezu zembewu.