Kupisa kwakasimba muMichigan parizvino hakuna kumboitika uye kwakashamisa vazhinji maererano nekukasira kuri kuita maapuro.Nekunaya kwakafanotaurwa kweChishanu, Kurume 23, uye kwevhiki rinouya,zvakakosha kuti mbeu dzinobatwa nechigwere dzichengetedzwe kubva kuchiitiko ichi chinotarisirwa kutanga utachiona hwegwegwe..
Mumwaka wekutanga wa2010 (uyo wanga usati watanga sezvatiri iye zvino), fungus yescab yakanga iri kumashure kwemiti yemaapuro mukukura nekuti takange tave nenguva yakareba yekuvharirwa nechando ichitungamira mumwaka waichengeta fungus. overwintering inotonhora.Kushaikwa kwechando kunovhara iyi "spring" ye2012 uye kushayikwa kwekushisa kwechando kwechando munguva yechando kunoratidza kuti fungus scab yakagadzirira kuenda ikozvino.
Maapuro ari kumaodzanyemba kwakadziva kumadokero kweMichigan ari pachikwata chakasimba uye pa 0.5-inch green tip paRidge.Kuchengetedza miti panguva ino yekusimudzira zvinoshamisa idanho rekutanga rakakosha kudzivirira denda reapuro scab.Isu tichava nemhomho yespore kunze uko kune ino iri kuuya yekutanga chirwere chegomarara.Kunyangwe pasina huwandu hukuru hwegirinhi nyama iripo, hutachiona hwegaya pagirinhi tip hunogona kuve nemhedzisiro yehupfumi.Izvi zvinodaro nekuti maronda egako anotangwa akatenderedza green tip anowanzo buritsa conidia pakati pepingi nepetal kudonha, nguva yechinyakare apo primary ascospores iri muhuwandu hwepamusoro.Zvichava zvakanyanya kuoma kudzora gako pasi pekumanikidzwa kwakakwirira kweinoculum uye nekukura kwemuti panguva dzinotevera apo kukura nokukurumidza kunoguma mune mamwe manyama asina kudzivirirwa pakati pekushandiswa kwefungicide.
Mishonga yefungidziro yemhando yepamusoro inowanikwa yekudzora goko panguva ino yemwaka wekutanga ndiyo inodzivirira: Captan neEBDCs.Inogona kunge yatononoka kumhangura (ona chinyorwa chapfuura, "Yekutanga-mwaka yemhangura application ichabatsira kudzivirira kunzwa 'the blues' nezvezvirwere”).Zvakare, inopisa zvakanyanya kune anilinopyrimidines (Scala neVangard) ine hunyanzvi hwekuita pane inotonhorera tembiricha (yakakwirira mune yakaderera 60s uye pazasi).Tangi-musanganiswa weCaptan (3 lbs/A Captan 50W) uye EBDC (3 lbs) yakanakisa scab control musanganiswa.Musanganiswa uyu unotora mukana wekushanda kwezvose zviri zviviri zviwanikwa uye kuchengetedza kwepamusoro uye kugoverazve kweEBDCs.Nguva dzekupfapfaidza dzinoda kusimba pane zvakajairika nekuda kwehuwandu hwekukura kutsva.Uyewo, chenjerera neCaptan, sezvo kushandiswa kweCaptan nemafuta kana mamwe mafetereza efoliar kunogona kutungamirira ku phytotoxicity.
Tiri kunzwa kushushikana kukuru (kunodiwa zvakazara) pamusoro petarisiro yegoho muna 2012. Hatigone kufanotaura mamiriro ekunze, asi kudzora chikwekwe nekukurumidza kwakakosha.Kana tikarega chikwambo chichikurumidza kubata, uye tave negoho, fungu rinozodyara gare gare.Chirwere chimwe chinhu chatinokwanisa kudzora mumwaka uno wekutanga – ngatizviitei!
Nguva yekutumira: Mar-30-2021