Ukusabalala kanye nokulimala kwe-Curvularia leaf blight
Ngenxa yokunganaki kokuphatha kanye nezinye izizathu, utshani bukhula endaweni eqinile futhi buthambekele ezifweni. Ngaphezu kwalokhoukuthelela utshaniemndenini ongaphansi kwe-Artemisia, i-Curvularia izothelela utshani bomndeni ongaphansi kwe-Pooideae, njenge-bluegrass, i-meadow bluegrass, i-fine-leaved fescue, i-Canada bluegrass, i-ryegrass, njll.
Ingozi: Utshani olunesifo lubuthakathaka, luncane, futhi lunezindawo zotshani ezifile ezingajwayelekile. Amakholomu otshani ngaphakathi kwamabala otshani afile mancane futhi mafushane, futhi abonakala empunga futhi efile. Amaqabunga anesifo otshani obuluhlaza okotshani kanye ne-fescue enamaqabunga amahle ashintsha kusuka kophuzi abe nsundu kusukela esicongweni kuya esisekelweni, bese kuba mpunga, kuze kube yilapho lonke iqabunga lifa. Izinhlobo ezahlukene zezifo zibangela izimpawu ezahlukene. Isibonelo, lapho i-Curvularia crescentus ithelela utshani obuluhlaza okotshani, izilonda emaqabungeni anesifo ziyi-oval noma i-fusiform, phakathi kwezilonda kumpunga, indawo ezungezile insundu, futhi kunezimbobo eziphuzi ngaphandle. Lapho amaqabunga embozwe izilonda, ayafa.
Izimo ze-Curvularia leaf blight
Izinga Lokushisa: Kulula ukwenzeka uma izinga lokushisa eliphezulu lifinyelela cishe kuma-degrees angu-30 endaweni enomswakama ophezulu.
Izinto ezibangela ukutheleleka: Ukuthelela utshani obubhekene nobunzima bokushisa okuphezulu noma ukuyeka ukukhula ngenxa yokushisa okuphezulu. Utshani, izitshalo ezahlukahlukene zokusanhlamvu, kanye nokhula lotshani. Utshani obukhuliswe kabi, obungaphathwa kahle, kanye notshani obukhuliswe kancane. Kungavela ezindaweni ezinomswakama kanye nomanyolo we-nitrogen omningi.
Indlela yokudlulisela: Ukusabalala komoya nemvula.
Ukuvimbela nokwelapha i-Curvularia leaf blight
Imbewu: Khetha imbewu ekwazi ukumelana nezifo futhi engenazo izifo, bese uhlanganisa izinhlobo ezahlukene zembewu yotshani.
Ukuhlwanyela nokufaka umquba: Mboza inhlabathi ngendlela efanele lapho uhlwanyela, naka ukuphathwa kwezithombo, faka umanyolo we-nitrogen ngendlela efanele, gwema ukufaka ngokweqile ekuqaleni kwentwasahlobo naphakathi nehlobo, futhi wandise umanyolo we-phosphorus ne-potassium.
Ukunisela: Ukunisela kufanele kwenziwe ekuseni, gwema ukunisela kusihlwa, nisela ngokujulile nangokuphelele, nciphisa ukunisela njalo, futhi ugweme ukunqwabelana kwamanzi otshanini.
Ukusika utshani: Qaphela ukuphakama kokusika utshani, okungenani kungu-5 kuya ku-6 cm.
Indawo: Susa amaqabunga asele otshanini obunesifo nobobufile ngesikhathi ngemuva kokuthena, bese uhlanza ungqimba lotshani obufile njalo.
Izindlela zokwelapha isifo samaqabunga e-Curvularia
Uma uhlwanyela, hlanganisa imbewu nenani elifanele lempuphu emanzi ye-triadimefon noma i-50% yempuphu emanzi ye-thiram. Futha utshani nge-fungicide ngesikhathi sokuvimbela nokulawula lesi sifo ekuqaleni kwesigaba.
Isikhathi sokuthunyelwe: Disemba 16-2024