Izindaba Zemikhiqizo
-
Isibulala-sikhunta esine-spectrum esibanzi esingavimbela futhi selaphe izifo ezingaphezu kwekhulu—i-pyraclostrobin
I-Pyraclostrobin iyi-methoxyacrylate fungicide enesakhiwo se-pyrazole esakhiwe yi-BASF eJalimane ngo-1993. Isetshenziswe ezitshalweni ezingaphezu kwe-100.Ine-spectrum ebanzi ye-bactericidal, amagciwane amaningi ahlosiwe, kanye nokuzivikela komzimba.Inocansi oluqinile, ithuthukisa ukumelana nokucindezeleka kwezitshalo...Funda kabanzi -
Yini ngempela eyenziwa i-gibberellin?Ingabe uyazi?
I-Gibberellins yatholwa okokuqala ososayensi baseJapane lapho befunda irayisi "isifo se-bakanae".Bathola ukuthi isizathu esenza izitshalo zelayisi eziphethwe yi-bakanae zikhule zaba zinde futhi zaba phuzi kungenxa yezinto ezikhiqizwe ama-gibberellins.Kamuva, abanye...Funda kabanzi -
Ukuxilongwa nokulawulwa kwebala leqabunga likatamatisi (indawo ensundu)
I-Gray leaf spot nayo ibizwa ngokuthi i-sesame leaf spot ngabalimi bemifino ekukhiqizeni.Ilimaza kakhulu amaqabunga, futhi ezimweni ezimbi kakhulu, ama-petioles nawo awonakele.Esigabeni sokuqala sesifo, amaqabunga ambozwe ngamachashazi amancane akhanyayo.Izilonda zicwile emanzini futhi azihambisani...Funda kabanzi -
Zombili zingama-fungicides, yini umehluko phakathi kwe-mancozeb ne-carbendazim?Iyini ukusetshenziswa kwayo ekukhuleni kwezimbali?
I-Mancozeb iyisikhunta esivikelayo esivame ukusetshenziswa ekukhiqizweni kwezolimo.Iyinkimbinkimbi ye-maneb ne-mancozeb.Ngenxa yobubanzi bayo bokuvala inzalo, ukumelana nemithi elwa namagciwane akulula ukukhula, futhi umphumela wokulawula ungcono kakhulu kunamanye ama-fungicides ohlobo olufanayo.Futhi...Funda kabanzi -
Qiniseka ukuthi unaka lezi lapho usebenzisa i-azoxystrobin!
I-Azoxystrobin ine-spectrum ebanzi ye-bactericidal.Ngaphezu kwe-EC, iyancibilika kuzincibilikisi ezihlukahlukene njenge-methanol ne-acetonitrile.Inomsebenzi omuhle ngokumelene cishe nawo wonke amagciwane e-pathogenic ombuso we-fungal.Kodwa-ke, naphezu kwezinzuzo zayo eziningi, kufanelekile ukusho ukuthi uma usebenzisa i ...Funda kabanzi -
Ama-fungicides e-Triazole afana ne-Difenoconazole, i-Hexaconazole ne-Tebuconazole asetshenziswa ngokuphepha nangempumelelo ngale ndlela.
Ama-fungicides e-Triazole afana ne-Difenoconazole, i-Hexaconazole, ne-Tebuconazole asetshenziswa kakhulu ekukhiqizweni kwezolimo.Zinezici ze-spectrum ebanzi, ukusebenza kahle okuphezulu, nobuthi obuphansi, futhi zinemiphumela emihle yokulawula ezifweni ezihlukahlukene zezitshalo.Nokho, udinga ...Funda kabanzi -
Yiziphi Izinambuzane Nezifo Ezingakwazi Ukuzilawula, Isibulala-zinambuzane Sezitshalo, Zilawule?
I-Matrine uhlobo lwesikhunta sezitshalo.Ikhishwa ezimpandeni, iziqu, amaqabunga nezithelo ze-Sophora flavescens.Isidakamizwa sinamanye amagama abizwa ngokuthi i-matrine ne-aphid.Umuthi unobuthi obuphansi, unezinsalela eziphansi, awuhambisani nemvelo, futhi ungasetshenziswa etiyeni, ugwayi nezinye izitshalo.Matrin...Funda kabanzi -
Uyini umehluko phakathi kwe-glyphosate ne-glufosinate-ammonium?Kungani i-glyphosate ingasetshenziswa ezinsimini zezithelo?
Kukhona umehluko wegama elilodwa kuphela phakathi kwe-glyphosate ne-glufosinate-ammonium.Kodwa-ke, abathengisi abaningi bezinto zokulima kanye nabangane babalimi abakacaci kahle ngalaba "bafowethu" ababili futhi abakwazi ukubehlukanisa kahle.Uyini-ke umehluko?I-Glyphosate ne-glufo...Funda kabanzi -
Umehluko phakathi kweCypermethrin, Beta- Cypermethrin ne-Alpha-cypermethrin
Izibulala-zinambuzane ze-Pyrethroid zinezici eziqinile ze-chiral futhi ngokuvamile ziqukethe ama-chiral enantiomers amaningi.Nakuba lawa ma-enantiomers anezakhiwo ezifanayo zomzimba namakhemikhali, abonisa imisebenzi ehluke ngokuphelele yokubulala izinambuzane kanye nezakhiwo zebhayoloji ku-vivo.Ubuthi kanye ne-en...Funda kabanzi -
Ubuchwepheshe bokusebenzisa i-Diquat: isibulala-zinambuzane esihle + ukusetshenziswa okulungile = umphumela omuhle!
1. Isingeniso se-Diquat Diquat isibulala-magciwane se-biocidal sesithathu esaziwa kakhulu emhlabeni ngemuva kwe-glyphosate ne-paraquat.I-Diquat iwumuthi wokubulala ukhula i-bipyridyl.Ngenxa yokuthi iqukethe i-athomu ye-bromine ohlelweni lwe-bipyridine, inezici ezithile zesistimu, kodwa ngeke ilimaze izimpande zezitshalo.Kungaba...Funda kabanzi -
I-Difenoconazole, ivimbela futhi yelapha izifo zezitshalo eziyisi-6, iyasebenza futhi kulula ukuyisebenzisa
I-Difenoconazole iyisikhunta esisebenza kahle kakhulu, esiphephile, esinobuthi obuphansi, esinobubanzi obubanzi esingamuncwa izitshalo futhi singene ngamandla.Kubuye kube umkhiqizo oshisayo phakathi kwama-fungicides.1. Izici (1) I-systemic conduction, i-spectrum ye-bactericidal ebanzi.Fenoconazole...Funda kabanzi -
Uyini umehluko phakathi kwe-tebuconazole ne-hexaconazole?Ungakhetha kanjani uma usebenzisa?
Funda mayelana ne-tebuconazole ne-hexaconazole Ngokombono wokuhlukaniswa kwezibulala-zinambuzane, i-tebuconazole ne-hexaconazole zombili ziyi-triazole fungicides.Bobabili bafinyelela umphumela wokubulala amagciwane ngokuvimbela ukuhlanganiswa kwe-ergosterol kusikhunta, futhi bane-certa...Funda kabanzi
