Umkhuhlane we-powdery on rose: kanjani ukulwa?

Uyazi ukuthi kunezinhlobo ezimbili ze-powdery isikhutha: zangempela futhi zingamanga? Lesi sifo se-powdery e-rose sibhekene ne-fungus pathogen. Ngokuvamile kubonakala cishe engxenyeni yesibili yehlobo. Izibonakaliso zokuqala zalesi sifo ziqhakaza ezimhlophe efihlekile, amaqabunga aqala ukugoqa, abe mncane futhi aqale ukuphenduka. Uma kungekho izinyathelo ezithathwe ukuze kuqedwe lesi sifo, ukugqoka okumhlophe kuhlanganisa kancane isitshalo sonke futhi sibe mnandi.

Isikhukhula samapayipi e-rose sivimbela ukukhula kwesitshalo. Kungenzeka ngenxa yokuntuleka kwe-calcium emhlabathini noma ngenxa yenani elikhulu le-nitrogen. Eziteleni zokugcina izithombo zithinteka yilesi sifo ngenxa yokushaywa umoya okuncane nokuntuleka kokukhanya.

Ukulawulwa kwe-powdery isikhutha kufanele kwenziwe ngokushesha, uma izibonakaliso zokuqala zalesi sifo zenzeka. Ukuze wenze lokhu, sebenzisa ukupuniza ngamalungiselelo akhethekile aqukethe isulfure, usebenzise isisombululo soda, esafaka isobho, noma usebenzise i-fondozol.

Ukuvimbela kwenziwa ekwindla. Amaqabunga awile aqoqwe futhi ashiswa, futhi inhlabathi iyabanjwa. Entwasahlobo, lapho amaqabunga ehluma, avuka amahlumela aphethwe ngamaphesenti angu-3 ensimbi ye-vitriol.

Manje ake sicabangele into enjalo njengesihlungu esincane. Lesi sifo sibonakala ngokuba khona kwamabala athize engxenyeni engenhla yamaqabunga, kanye ne-peduncles. Amachashazi anombala obomvu, obomvu noma ongcolile. Ngokuhamba kancane, amaqabunga aphendukile futhi asomile.

Ngaphansi kweqabunga lamaqabunga, ungabona izindawo ngokubunjwa kwesikhunta. I- powdery isikhutha samanga e-rose iholela emaqabungeni awela, amahlumela aqala ukubola bese efa. Lesi sifo sibeka engozini izimbali ezisezigcekeni ezivaliwe, ezindaweni ezivulekile zomhlabathi zibekezelela lesi sifo kalula. Lesi sifo senziwa ngenxa yomswakama ophezulu, izinguquko ezibalulekile zokushisa phakathi nosuku nobusuku.

Ikhambi le-powdery isikhutha, ngaphezu kwakho konke, ukuvimbela. Amaqabunga awela phansi namahlumela abathintekayo kufanele aqoqwe futhi ashiswa, inhlabathi kufanele iphathwe ngamalungiselelo akhethekile. Lapho izibonakaliso zokuqala zezifo zenzeka, izitshalo zihlanzwa ngokusebenzisa izidakamizwa ezifana ne-Bordeaux liquid, kuprozan, kanye ne-ditane.

Umkhuhlane we-powdery e-rose ungabonakala ngokushesha emibonakalweni emibili, yangempela namanga. Ukulwa nalezi zifo, kuyoba ngempumelelo ukusebenzisa isulfure nomthamo we-M-45.

Ngisho noma ungakaze uhlaselwe yi-powdery isikhutha endaweni ye-rose, kuyoba usizo kakhulu ukwenza i-prophylaxis. Ukuze kukhishwe isifo sezimbali, ezindaweni ezikhulayo kudingeka ukutshala izithombo eziphikisana kakhulu nalesi sifo. Ukunisela nokufafaza izimbali kangcono ekuseni, khona-ke umswakama owedlulele uyoba nesikhathi sokukhuphukela usuku. Ngaphezu kwalokho, kufanele kube khona ibanga elithile phakathi kwamahlathi ase rose. Ama-shrub akufanele akhule ekuthintana naye komunye nomunye. Izitshalo zokudla kufanele zilinganiselwe ngokucacile.