Isithombe: Isifo Sokugqwala Kwebhontshisi Emaqabungeni Ebhontshisi Aluhlaza
Kushicilelwe: Disemba 28, 2025 17:43:27 UTC
Isithombe esinekhwalithi ephezulu esibonisa izimpawu zesifo sokugqwala kwebhontshisi emaqabunga ebhontshisi aluhlaza, okuhlanganisa ama-pustules abomvu-nsundu kanye nama-chlorotic halos.
Bean Rust Disease on Green Bean Leaves
Lesi sithombe sendawo esinekhwalithi ephezulu sithwebula ukubonakaliswa kwezimpawu zesifo sokugqwala kwebhontshisi (Uromyces appendiculatus) emaqabunga ebhontshisi eluhlaza (Phaseolus vulgaris). Ukwakheka kufaka ukuhlelwa okuqinile kwamaqabunga ebhontshisi avuthiwe, ngalinye libonisa ngokusobala izimpawu zokutheleleka. Amaqabunga anomumo ofana nenhliziyo aneziqongo ezicijile kanye nemingcele egobile kancane, ahlelwe ngezendlalelo ezigoqene ezigcwalisa uhlaka.
Uphawu oluyinhloko olubonakalayo lwalesi sifo ukuba khona kwama-pustules amaningi anombala ophuzi kuya kobomvu-nsundu (uredinia) asakazeke ezindaweni zamaqabunga. Lezi zilonda ziyahlukahluka ngobukhulu kusukela ku-1 kuya ku-3 mm ububanzi futhi ngokuvamile ziyisiyingi kuya esimweni esingajwayelekile. Ama-pustules amaningi azungezwe ama-chlorotic halos—izindawo eziphuzi ezibonisa ukulimala kwezicubu zendawo kanye nokusabela kokuzivikela kwesitshalo. Ama-pustules aphakanyisiwe kancane futhi anomumo, okwenza ubuso bamaqabunga bubukeke bunamabala, bunezinhlayiya.
Umbala wamaqabunga uyahlukahluka kusukela koluhlaza okotshani kuya kophuzi-luhlaza okotshani, kuye ngokuthi ukutheleleka kubucayi kangakanani. Imithambo ibonakala ngokucacile, yakha inethiwekhi eqondile enemithambo ephakathi evelele kanye namagatsha amancane aseceleni. Ubuso bamaqabunga bubonisa ukuthungwa okungabonakali kahle okune-venation encane kanye nephethini yamaseli e-epidermal ebonakala ngaphansi kwezilonda zokugqwala.
Ukukhanya kwemvelo kuthuthukisa ukuba ngokoqobo kwendawo, ngokukhanya kwelanga okuthambile, okusabalele okukhanyisa amaqabunga futhi kuveze izithunzi ezithambile ezigcizelela isakhiwo samahlamvu esinezinhlangothi ezintathu. Ingemuva lifiphele kancane, okuphakamisa izitshalo neziqu ezengeziwe zobhontshisi, okusiza ukuhlukanisa amaqabunga anesifo ngaphambili.
Lesi sithombe silungele izinjongo zemfundo, zokuxilonga, kanye nokubhala uhlu, sinikeza inkomba ebonakalayo ecacile yokubona ukugqwala kukabhontshisi ezimweni zasensimini. Siqokomisa umthelela wesifo emzimbeni wamaqabunga futhi sinikeza isithombe sangempela sokuqhubeka kwezimpawu, esiwusizo kosochwepheshe bezolimo, abalimi bezitshalo kanye nososayensi bezifo zezitshalo.
Isithombe sihlobene: Ukutshala Ubhontshisi Oluhlaza: Umhlahlandlela Ophelele Wabalimi Basemakhaya