Isifo se-fungal esibizwa nge-powdery hlobo noma i-oidium yisishayo sangempela sezilimo zezithelo, kufaka phakathi ama-currants. Izinhlobonhlobo zama-currants amhlophe nabomvu athinteka ngalesi sifo i-oda lesilinganiso esingaphansi komnyama.
Njengoba sesifikile emkhakheni wezwekazi lethu sisuka eMelika ngonyaka we-1900, i-Powdery isikhutha yasakazeka yonke indawo. Ingozi yalesi sifo ilele eqinisweni lokuthi ayibangeli nje ukulimala kwesitshalo, kodwa futhi ingaholela ekufeni kwezitshalo.
Kuyini i-powdery isikhutha kuma-currants?
Umenzeli obangela lesi sifo ukhunta oluyisiyaluyalu.
Igcwele kuzitshalo ezithintekile kanye nemfucumfucu yamaqabunga, kanti entwasahlobo iqala ukwanda ngenkuthalo. Izinga lokukhula kwesikhunta lithintwa yisimo sezulu esimanzi nesifudumele, kanye nokuningi umanyolo we-nitrogen enhlabathini.
Uma ungathathi izinyathelo ezifanele, ngo-Julayi-Agasti sonke isitshalo sizothintwa yiwo.
Izimpawu zomonakalo ehlathini eliyi-currant nge-powdery isikhutha:
- Inhlanganisela ebimhlophe-grey evele emaqabungeni nasezimpondweni, ezigcina zithola i-brown hue.
- Ngesikhathi sokudubula, iphuzu lokukhula liyathinteka, liyeka ukukhula futhi likhubazekile.
- Kushiya amaqabunga, abe mancane, alahlekelwe umbala wawo oluhlaza.
- Amajikijolo asekwenziwe ambozwe nge-plaque, futhi lawo angakakhiwa abunjwe.
- Isihlahla se-currant siyayeka ukukhula, yomisa ngaphandle, ukumelana nesithwathwa kwaso kunciphile. Ngakho-ke, uma lesi sitshalo singafi ngqo ngalesi sifo, khona-ke asisaphili ebusika.
Ungabhekana kanjani ne-powdery isikhutha kuma-currants?
Njengamanje, lesi sifo sifundwe kahle, futhi kunezindlela eziningi ezanele zokulwa naso. Ukubhekana ngempumelelo ne-Powdery isikhutha kuma-currants, ukwelashwa kufanele kuhlanganiswe nezindlela zokuvimbela.
Indlela esemqoka yokwelapha izitshalo nge-powderyypew ifafaza ngezixazululo ezahlukahlukene, ngakho-ke kubalulekile ukwenza le nqubo ngendlela efanele. Kuyadingeka ukucubungula izitshalo ezivela kuzo zonke izinhlangothi, ukuzama ukuthambisa amaqabunga womabili ukusuka phansi nangaphezulu. Ngokufafaza, ungasebenzisa isibhamu sokufafaza noma ibhulashi elithambile - into esemqoka ukuthi zonke izingxenye zesitshalo zicutshungulwa. Inqubo uqobo lwayo kufanele yenziwe kusihlwa kusihlwa sezulu esomile. Kanye njalo ezinsukwini ezingama-4-7, ukufafaza kuyaphindwa kuze kube yilapho lesi sifo siphela ngokuphelele.
Ukwelashwa kwezifo
Amalungiselelo we-fungicidal enziwe ngomumo ayathengiswa; ukusetshenziswa kwawo, izincomo zomenzi kufanele zilandelwe.
Kukhona futhi inani elikhulu lezinto zokupheka ezisebenzayo ukulwa ne-powdery hlobo:
- Amagremu angama-80 we-sulfate yethusi + amalitha ayi-10 amanzi. Lesi sixazululo sinconywa ukuthi sisetshenziswe entwasahlobo ngaphambi kokuba ama-buds avuleke; balima isihlahla uqobo kanye nomhlabathi ngaphansi kwawo.
- I-50 g ye-soda ash + 10 l wamanzi. Ukuqanjwa kuphathwa ngezitshalo ngemuva kokuqhakaza.
- 1 kg yomlotha wezinkuni (uhlanzekile futhi usikiwe) + 1 ibhakede lamanzi. Ingxube ifakwa izinsuku eziningana, ihlungiwe, kufakwe insipho yokuwasha bese izitshalo ziphathwa.
- 1.5 g we potanganum permanganate + 10 l wamanzi.
- 1 ingxenye mullein + 3 izingxenye zamanzi. Ingxube ifakwa izinsuku ezintathu, ihlanjululwe 1: 3 futhi izitshalo ziphathwa kanye ngeviki.
- I-3 l ye-serum + 7 l yamanzi + 1 tsp. sulfate yethusi.
I-Powdery Mildew Prevention
Izindlela zokuvimbela lesi sifo zibandakanya ukusikwa okugunyaziwe kwezihlahla ekwindla, ukuhlanzwa kwamaqabunga awileyo namagatsha lapho i-pathogen ingabusika, futhi isishise.
Entwasahlobo yokuqala, ama-currant bush kanye nenhlabathi kufanele aphathwe nge-vitriol. Kuyadingeka ukuthi uhlole ngezikhathi ezithile ehlathini ukuze usikhombe ngokushesha lesi sifo. Ngakho-ke, ngeke uqale nje ukwelashwa ekuqaleni, kepha futhi uzokwazi ukubona ukuthuthukiswa kwezinye izifo ze-currant.
Uma izimo zesimo sezulu zinegalelo ekuthuthukisweni kwezifo zokukhunta, kufanele kukhule izinhlobo ezinzinzile zama-currant: "Ijuba", "Black Pearl", "Agate" nabanye.
