Cabbage bụ akwụkwọ nri na-ewu ewu nke juputara na nri ndị dị mkpa ma nwee ike ịnụ ụtọ ya n'ọtụtụ nri dị ụtọ. Otú ọ dị, otu n'ime ihe egwu kachasị egwu na-emepụta kabeeji n'ụwa nile bụ ọrịa fungal nke Leptosphaeria maculans kpatara, nke a na-akpọkarị ntụpọ ojii. Edemede a ga-enyocha mmepe na nsonaazụ nke ọrịa a, yana nyekwa nghọta maka otu esi ejikwa ya nke ọma.
Ihe na-akpata mgbanaka ojii bụ ero Leptosphaeria maculans, nke na-emerụ osisi kabeeji site na akwụkwọ, petioles, na ị ga. Ero ahụ na-akpata ntụpọ okirikiri ma ọ bụ elliptical nwere mgbanaka ojii pụrụ iche gbara ya gburugburu, nke nwere ike itolite ruo 1 cm n'obosara. Ebe ndị a nwere ike jikọta ma mepụta mpaghara necrotic buru ibu, na-eduga n'ịdaba akwụkwọ ma belata uto osisi. N'ọnọdụ ndị siri ike, mgbanaka ojii nwere ike ime ka mfu mkpụrụ dị ukwuu na ọbụna bute ọdịda ihe ọkụkụ zuru oke.
Ero ahụ na-adị ndụ na irighiri ihe ọkụkụ na ala, na-eme ka ntụgharị ihe ọkụkụ bụrụ ụzọ dị irè maka ijikwa ọrịa ahụ. Ịkọ ụdị kabeeji na-eguzogide ọgwụ nwekwara ike ibelata ihe ize ndụ nke ibute ọrịa. Enwere ike iji fungicides chebe osisi pụọ na ọrịa, mana ọ dị mkpa ka etinye ya na mgbochi ma nwee ike ịchọ ọtụtụ ngwa n'oge oge na-eto eto.
Mmepe nke oghere mgbanaka ojii nwere ike inwe nsonaazụ siri ike maka mmepụta kabeeji. Ọrịa ahụ nwere ike ibelata mkpụrụ, ịdị mma, na ahịa nke kabeeji, na-ebute nnukwu mfu akụ na ụba maka ndị ọrụ ugbo. Na mgbakwunye, ojiji nke fungicides nwere ike inwe mmetụta na-adịghị mma na gburugburu ebe obibi na ịbawanye ọnụ ahịa mmepụta.
Iji wedata mmetụta ntụpọ mgbanaka ojii na mmepụta kabeeji, ndị ọrụ ugbo nwere ike mejuputa atumatu njikwa pesti agbakwunyere nke jikọtara ụzọ omenala, usoro ndu na kemịkalụ. Atụmatụ ndị a bu n'obi ibelata ojiji nke fungicides na ịkwalite omume ọrụ ugbo na-adigide.
Ebe mgbanaka enweghị mgbanaka nke Leptosphaeria maculans kpatara bụ nnukwu ihe iyi egwu na mmepụta kabeeji n'ụwa niile. Ijikwa ọrịa a nke ọma chọrọ nchikota mgbochi, nchọpụta mmalite, na ụzọ nchịkwa. Site n'itinye usoro nlekọta pesti agbakwunyere, ndị ọrụ ugbo nwere ike ibelata mmetụta ntụpọ ojii n'ihe ọkụkụ ha, kwalite mkpụrụ na ịdị mma, ma kwalite omume ọrụ ugbo na-adigide.