Ukuba ufumana iingubo ezimhlophe ezimhlophe kwiimifuno zezityalo okanye iibhola ezimdaka, isityalo sichaphazeleka yi-powdery mildew. Ukugquma okukhanya ngokukhawuleza kuqala ukunqanda kwaye ekugqibeleni kufumana i-brown tint. Le nto ayikho nje i-mycelium ehlala kwindleko yesityalo. Iibhola zeBrown ziyi-spores spores. Ingozi yesi sifo yile ndlela ilandelayo: isityalo siyaphela ngokupheleleyo imbonakalo yokubhena, kwaye iindawo ezichaphazelekayo ziya kutshintsha umnyama kwaye zife. Ukuba i-inflorescences ichaphazelekayo, ayikwazi ukwenza ii-ovari. Ukongezelela, esi sifo sinciphise kakhulu ukunyamezela ngexesha lokubanda.
Njengomthetho, ukuqala kosuleleko kwenzeka ekuqaleni kwehlobo. Ngeli xesha, ama-spores akhululwa kwisiqhamo somzimba wefungus. Ngexesha elomileyo ngexesha lokushisa, xa kukho ukuguquka okubukhali kumbushushu kunye nomswakama, izimo ezifanelekileyo zokuphuhlisa isikhumba se powdery sibonakala. Kwenzeka ukuba ukubonakala kwesi sifo kubangela ukusetyenziswa kakubi kwesichumisi se-nitrogen. Ukuba i-pruning eqinile yokuvuselela isenziwa, isityalo asikwazi ukuchasa.
Isifo somnyoba sisifo sefungal. Iyakusasazwa ngumoya okanye nge-splashes yamanzi ngexesha lokunkcenkceshela.
Indlela yokulahla isikhumba se powdery?
Ukulwa nomphunga kuqala ngokukhusela. Ehlobo, i-pollination kufuneka iqhutywe ubuncinane amaxesha amane. Ukuba kunokwenzeka, musa ukusebenzisa i-nitrogen fertilizer ngexesha lokuhlamba, oku kwandisa kakhulu ingozi yesifo. Ukwandisa ukuzinza kwe-potassium kunye ne-phosphate fertilizer.
Ukulwa ne-powdery mildew kufuneka kuqaliswe ngexesha, ngaphandle koko kusongela ingqungquthela yonke. I-fungus ikhetha ubusika kwisityalo esele, ngoko kubaluleke kakhulu ukuzisusa ngexesha kunye nokuzitshisa okanye ukuzigxininisa emhlabathini.
Kwimifuno ye-gooseberries kunye ne-currants kufuneka inqunywe iiphelo ezichaphazelekayo zezihluma entwasahlobo. Qiniseka ukuba unondla iintlobo nge "ezichanekileyo" ezichumisayo. Ngaphambi nangemva kweentyantyambo, kuyimfuneko ukunyanga isityalo nge-soda calcined. Ngesinye iminyaka kwiminyaka engama-2-3 kuyavunyelwa ukufaka isicelo sokuphelisa ukupomfa ngesisombululo se-sulfate.
Ngama-strawberries, ama-raspberries kunye ne-dogrose, izifo zichaphazela kuphela inxalenye yomhlaba. Kule meko, amaqabunga aqala ukuhlambalaza kunye nokuwa. Ungasifaka izityalo nge-sulfur colloidal kanye ngeveki. Nazi iindlela zokupheka ezimbalwa:
- xuba 50 g yesulfure nge-5 g ye-sulphate yobhedu kwaye uhlambe kwi-10 ilitha amanzi;
- xuba i-100 g yesepha yokuhlamba kwaye ungeze kuyo i-5 g ye-vitriol, yonke ihlanjululwe kwi-10 ilitha amanzi;
- Unokulungiselela isisombululo se-Mullein kwisiqingatha se-1:10, ukugxininisa ubuncinane iiyure ezingama-4.
Kukho neendlela ezinokuthi umntu angayilahla njani amazolo e powdery. Nazi iindlela zokupheka ezimbalwa:
- 1 litre yamanzi, qhafaza 4 g we-soda ash kunye ne-4 grams yesepha yokuhlamba. Isisombululo sihlanjululwa ngezityalo kabini ngeveki;
- 1 litre yamanzi abilayo achithe isiqingatha seglasi ye-ash. Ukunyanzelisa iintsuku ezimbini. Dissolve isisombululo uze ungeze kuso 4 g yesepha ecocekileyo. Ukucwangcisa izityalo kabini ngelixesha ngeveki.
I-Powdery mildew kwiintyatyambo
Ukuba umlimi weentyatyambo, le ngxaki ayifanelekanga, kuba isifo sidla ngokuchaphazela iintyatyambo zangaphakathi.
Kodwa konke okufanayo, amanyathelo okulwa nomphunga we-powdery kwiintyatyambo zikhoyo. Ukugcina isityalo, kufuneka uphendule ngokukhawuleza. Kukho iindlela ezikhethekileyo zesikhumba se-powdery, ezingathengwa kwiivenkile zabaflorisi. Isilwanyana "I-Topaz" isetyenziswe ngokwemiyalelo yazo zonke izityalo, nokuba ziphilile. Kudla ngokwaneleyo ukuqhuba iintyatyambo kanye.