#AlternariaLeafSpot #BrassicaCrops #FungalDisease #CropYield #IntegratedPestManagement #Fungicides #FoodSecurity #Sanitation #CropRotation #EnvironmentalImpact #PathogenResistance
Izitshalo ze-Brassica, ezifana ne-broccoli, iklabishi, ne-cauliflower, zisengozini ye-Alternaria leaf spot, isifo sokukhunta esibangelwa i-pathogen i-Alternaria brassicae. Lesi sifo sithinta amahlamvu esitshalo, sibangele amabala amnyama, ashone emaqabunga angaholela ekuwohlokeni kanye nokuncipha kwesivuno sezitshalo.
Ukuphatha indawo yeqabunga ye-Alternaria, kubalulekile ukuqonda ukukhula kwesifo kanye nomjikelezo wokuphila. I-pathogen ingadlula ubusika emfucumfucwini yezitshalo nomhlabathi, futhi izinhlamvu zingasakazwa ngomoya, amanzi, kanye nemishini. Lesi sifo sikhula kahle ezimweni ezifudumele nezinomswakama, futhi singabhebhethekiswa ukuminyana kanye nemikhuba emibi yokukhucululwa kwendle.
Ukuze uvimbele indawo yeqabunga le-Alternaria, abalimi kufanele bazijwayeze ukushintshanisa izitshalo, basuse futhi bacekele phansi izitshalo ezigulayo, futhi bagweme ukuchelela phezulu. Ama-fungicides nawo angasebenza, kepha kufanele asetshenziswe ngobuhlakani ukugwema ukwakheka kwezinhlobo ezimelana ne-pathogen.
Ngaphezu komthelela wezomnotho kubalimi, i-Alternaria leaf spot ingaba nemiphumela yemvelo. Ama-fungicides angaba nemiphumela engemihle ezilwaneni okungahlosiwe, futhi ukulahleka kwesivuno kungaholela ekushodeni kokudla kanye nokwenyuka kwamanani.
Sekukonke, ukuqonda nokuphatha i-Alternaria leaf spot kubalulekile ekugcineni izitshalo ze-brassica ezinempilo kanye nokuqinisekisa ukuvikeleka kokudla. Ngokusebenzisa ukukhucululwa kwendle okuhle nokusebenzisa amasu adidiyelwe okulawula izinambuzane, abalimi bangasiza ekuvimbeleni ukusabalala kwalesi sifo esilimazayo.