Kupisa kuri kuramba kuchiitika muMichigan pari zvino hakuna kumboitika uye kwakashamisa vazhinji maererano nekukurumidzira kuri kukura maapuro. Nekutarisirwa kwemvura yeChishanu, Kurume 23, uye vhiki rinouya,Zvakakosha kuti mbeu dzinokwanisa kubatwa neganda remapere dzidzivirirwe kubva kuchirwere ichi chinotarisirwa kutanga cheganda remapere..
Mumwaka wekutanga wa2010 (uyo wakanga usati watanga sezvatiri kuita iye zvino), howa yeganda remapundu yakanga yasara zvishoma mukukura kwemiti yemaapuro nekuti takanga tine nguva yakareba yekufukidzwa nechando kusvika mumwaka wakaita kuti howa irambe iripo mumashizha echando. Kushaikwa kwechando ichi "chirimo" cha2012 uye kushaikwa kwekupisa kunotonhora munguva yechando zvinoratidza kuti howa yeganda remapundu yagadzirira kupera izvozvi.
Maapuro kumaodzanyemba kwakadziva kumadokero kweMichigan ari pedyo uye ari pamucheto wegirini we0.5-inch paRidge. Kudzivirira miti munguva ino yekukura nekukurumidza inhanho yekutanga yakakosha yekudzivirira denda remapere. Pamwe tichava nehuwandu hwakawanda hwemapere aripo panguva ino yekutanga yehutachiona hwemapere. Kunyangwe pasina huwandu hwakawanda hwenyama yegirini huripo, hutachiona hwemapere huri pamucheto wegirini hunogona kuva nemigumisiro yakaipa yehupfumi. Izvi zvinodaro nekuti mapere anotangira pamucheto wegirini anowanzo gadzira conidia pakati pepink nepetal fall, nguva yechinyakare apo ma ascospores ekutanga ari muhuwandu hwakawanda. Zvichave zvakaoma kwazvo kudzora mapere pasi pekumanikidzwa kwakanyanya kweinoculum uye nekukura kwemuti panguva dzekupedzisira uko kukura nekukurumidza kunoguma nenyama isina kudzivirirwa pakati pekushandiswa kwefungicide.
Mishonga yefungi yakanakisa iripo yekurwisa ganda panguva ino yekutanga kwemwaka inodzivirira ganda nemasero ebvudzi: Captan neEBDCs. Zvinogona kunge zvanonoka kushandisa mhangura (ona chinyorwa chapfuura, “Kuisa copper pakutanga kwemwaka kunobatsira kudzivirira 'kusuwa' nezvirwere"). Zvakare, inopisa zvakanyanya kune anilinopyrimidines (Scala naVangard) dzinoshanda zviri nani pakupisa kunotonhora (kwakakwirira mumadigirii akaderera e60s uye pasi). Musanganiswa weCaptan (3 lbs/A Captan 50W) neEBDC (3 lbs) musanganiswa wakanaka kwazvo wekudzivirira ganda. Musanganiswa uyu unobatsira zvikuru pakushanda kwezvinhu zvese uye kuchengetedza nekugovera EBDCs zvakanaka. Nguva dzekupfapfaidza dzinofanira kunge dzakasimba kupfuura zvakajairika nekuda kwehuwandu hwekukura kutsva. Zvakare, chenjerera neCaptan, sezvo kushandiswa kweCaptan nemafuta kana mamwe mafetiraiza emashizha kunogona kukonzera phytotoxicity.
Tiri kunzwa kunetseka kukuru (zvichienderana nezvinodiwa) nezve tarisiro yegoho regore ra2012. Hatigone kufanotaura mamiriro ekunze, asi kudzora goho nekukurumidza kwakakosha. Kana tikarega goho richikura nekukurumidza, uye tikawana goho, goho richazowana goho gare gare. Goho chimwe chezvinhu zvatinogona kudzora mumwaka uno wekutanga - ngatizviite!
Nguva yekutumira: Kurume-30-2021