Mitundu yotsutsana ndi sipinachi downy mildew ndiye njira yofunikira kwambiri posankha alimi akatswiri ku UK, malinga ndi katswiri wa masamba a Syngenta, Rosemary Atwood.
Kulengezedwa kwa mitundu iwiri yatsopano ya sipinachi downy mildew pathogen (Peronospora effusa) nyengo ino kumakulitsanso zovuta pamakampani komanso cholinga chazakudya.
Mpikisano wodziwika kumene Pe: 18 wapezeka ku Europe konse, ndi mavuto a Pe: 19 makamaka ku US. Komabe, International Working Group ku Peronospora mu sipinachi (IWGP), yalengeza kuti: 'mafuko onsewa ndi owopsa pamsika wama sipinachi m'malo onse adziko lapansi, ndipo kukana mitundu yatsopanoyi ndikofunikira'.
Rosemary anati: "Tikuwona kufunikira kosagwirizana kwamitundu mitundu pothandiza kupewa bwino zomwe zingayambitse matenda a mildew."
"Chofunika kwambiri, oweta athu akhala akuwunika momwe tizilombo toyambitsa matenda timayendera ku Europe mzaka zaposachedwa, chifukwa chake asankha kale mitundu yothanirana ndi mafuko atsopanowa, ngati gawo limodzi lamatenda olimbana ndi matendawa."
Ananenanso kuti njira zovomerezeka zovomerezeka za mitundu ya downy zimaphatikizaponso kupezeka kudera lonse komanso nyengo zotsatizana, komanso kukhala osiyana ndi mafuko omwe alipo kale.
"Izi zikutanthauza kuti tatha kuyesa mitundu yatsopano, monga El Lucio, El Furio, El Bravo ndi El Halo, motsutsana ndi kufalikira kwamatenda komweko, ndipo titha kukhala otsimikiza kuti atha kulimbana nawo mwamphamvu." Mitundu yonse ya Syngenta imagonjetsedwa ndi mitundu yatsopano Pe: 18 ndi Pe: 19 kwa olima aku UK ndi European.
Ngakhale mitundu ina yakale ya downy mildew singakhalenso yofala, Rosemary imalimbikitsa mitundu yomwe ingasonyeze kukana mitundu ingapo ingakhale yodalirika.
"Kunena zowona, pali mitundu yambiri ya matendawa yomwe ikupezeka ku Europe kuposa yonse yomwe imadziwika mwalamulo, mwina pamlingo woyambira kapena kuphulika kwakanthawi. Kusankha mitundu yomwe idapangidwa kuti igwirizane ndi zikhalidwe zaku Europe ndi msika, ndikuyesedwa kudera lonselo, kumapereka mpata wabwino wopewa ngozi yakuwonongeka.
Adawunikiranso mtundu wa Syngenta wokhala ndi chiwopsezo chokwanira cha udzu wokhuthala womwe umakhudza nyengo yonse yokula, ndi El Bravo akuchita bwino pakukula kwa ngalande ndikupanga nyengo yoyambirira, kutsatiridwa ndi El Furio kupyola kumapeto kwa kasupe yemwe ali ndi mdima wabwino kwambiri ndi masamba olimba omwe ali abwino kwa kukonza. Kudzera munyengo yachinyengo yapakatikati pa chilimwe El Halo yachita mosadukiza motsutsana ndi bolting. Kuti amalize nyengoyi alimi atha kubwerera ku El Furio ndipo pamapeto pake El Bravo, anawonjezera.
"Tsopano tili ndi alimi omwe akugwiritsa ntchito mitundu yonse itatu mu pulogalamu yawo, kuti apange kusasinthasintha kwabwino nyengo yonse," adatero. Mitundu ina yatsopano yomwe ikayambitsidwa chaka chino ikuwonetsanso kulimbana kwambiri ndi mitundu yatsopanoyi ndi mitundu ina ya udzu ku Europe. Gulu loweta sipinachi ku Syngenta ku Europe, lomwe tsopano limatsogozedwa ndi Rinse Jaarsma ku Enkhuizen ku Holland, ikuphatikizanso kukana kwambiri kwa stemphylium muzoyambitsa zatsopano za sipinachi.
Rosemary adaonjezeranso kuti ndikofunikira kutsata ndikutsata mitundu yatsopano ya mildew. "Izi zikutanthauza kuti titha kuyesa mitundu yatsopano motsutsana ndi zomwe zingawopsyeze mtsogolo ndipo, ikadzakhazikika mderalo, kuti adzagawidwe ngati mtundu wovomerezeka."
Komwe alimi amawona kufalikira kwa downy mildew mumitundu yomwe ikulimbana bwino, Rosemary angawalimbikitse kuti alowe nawo mgululi kuti ayesedwe ndikulemba - zomwe Syngenta imachita nawo.
Kusintha kwanyengo kumachulukirachulukira chifukwa cha nyengo yotentha ndi chinyezi yomwe imathandizira kuchepa kwa cinoni, adachenjeza Izi zitha kukulitsidwa ndi kuthirira ndikukula motsatizana kapena kwakanthawi kochepa pakati pa mbewu za sipinachi komwe kulibe nthaka.
“Ndikofunika kuti alimi azikhala ndi zida zonse zopewera kuthana ndi cinoni. Izi zimayamba ndikulimbana kosiyanasiyana ndipo zimalimbikitsidwa ndi pulogalamu yothandiza agronomy, "adalangiza a Rosemary. Kukula sipinachi kuphatikiza pulogalamu yabwino ya fungicide kungathandize kuteteza kufunika kwa mitundu yosiyanasiyana pakulimbana, pochepetsa kukula kwa tizilombo toyambitsa matenda.
Mawanga a sipinachi amatha kuyambitsidwa ndi tizilombo toyambitsa matenda osiyanasiyana, kuphatikiza Peronospora effusa, mitundu ya Stemphylium., Cladosporium variabile ndi Colletotrichum dematium. Matendawa samayang'aniridwa ndi oyang'anira a EU nthawi zonse.
Syngenta yapeza kukana kwamphamvu (HR) m'mizere yamakampaniyo kukhala ndi mtundu umodzi wa Stemphylium womwe udadziwika ndikudzipatula pazitsanzo zambiri za masamba azaka zaposachedwa komanso m'maiko osiyanasiyana a EU.
Kuti mudziwe zambiri:
Rosie Atwood
Syngenta UK
Pafoni: (+44) 07776 997416
Imelo: rosemary.atwood@syngenta.com