Sakamakon wasu gwaje-gwajen greenhouse da aka yi a wannan lokacin hunturu da bazara da kuma sakamakon binciken filin a wannan lokacin girma ya nuna cewa Palmer Palm kayan lambu dicamba (DR) resistant.An kafa waɗannan yawan jama'ar DR a yankunan Crockett, Gibson, Madison, Shelby da Warren da yuwuwar wasu gundumomi da dama.
Matsayin juriya dicamba yana da ɗan ƙaramin ƙarfi, kusan sau 2.5.A kowane fanni, matakin kamuwa da cuta yana farawa da ƙaramin aljihu, inda ake shuka shukar iyaye mata a cikin 2019, kuma yanki yana rufe kadada da yawa.Ana iya kwatanta wannan tare da kayan lambu na farko da aka rubuta glyphosate-resistant Palmer mar da aka samu a cikin Tennessee a cikin 2006. A wannan lokacin, yawancin masu girbi har yanzu suna da iko mai kyau akan glyphosate Palmer mar kayan lambu, yayin da sauran gonaki Mutumin ya lura da tserewa a cikin filinsa.
Lokacin da amfanin gona na Xtend ya fara bayyana a wurin, ba sabon abu ba ne ga kayan lambu na Palmer mar su tsere daga dicamba, wanda ya ɓace a ko'ina.Wadannan tserewa za su yi girma kadan ko babu girma a cikin makonni 2 zuwa 3.Sa'an nan, yawancin amfanin gona za su kasance cikin duhu ta hanyar amfanin gona kuma ba za a sake ganin su ba.Koyaya, a yau a wasu yankuna, jita-jita na DR Palmer mar za su fara girma cikin adadin da ba a taɓa gani ba a cikin kwanaki 10.
Wasu daga cikin abubuwan musamman na wannan binciken sune gwajin ciyawa na DR a cikin greenhouses a Jami'ar Tennessee da Jami'ar Arkansas.Wannan binciken ya nuna cewa haƙurin Palmer kayan lambu wanda ya tsere dicamba daga fagage da yawa a cikin Tennessee a cikin 2019 shine na Palmer kayan lambu da aka girma daga tsaba da aka tattara daga Arkansas da Tennessee shekaru goma da suka gabata.Fiye da sau 2.Gwaje-gwajen greenhouse da aka yi a Jami'ar Texas Tech na gaba ya nuna cewa yawan mutanen da aka tattara daga Shelby County, Tennessee sun fi jurewa sau 2.4 ga dicamba fiye da Parma a Lubbock, Texas (Hoto na 1).
An gudanar da gwaje-gwajen filin a kan wasu daga cikin mutanen Palmer da ake zargi a cikin Tennessee.Sakamakon waɗannan gwaje-gwajen filin suna nuna allon allo a cikin greenhouse, yana nuna cewa ƙimar aikace-aikacen 1x dicamba mai lamba (0.5 lb/A) na iya samar da 40-60% Palmer mar sarrafa kayan lambu.A cikin waɗannan gwaje-gwajen, aikace-aikacen dicamba na gaba kaɗan ne kawai ya inganta sarrafawa (Figures 2, 3).
A ƙarshe, yawancin manoma sun ba da rahoton cewa suna buƙatar fesa kayan lambu na Palmer mar sau 3 zuwa 4 don samun iko.Abin baƙin cikin shine, waɗannan rahotanni sun nuna cewa wuraren da aka gina da kuma nazarin filin suna nuna abin da wasu masu ba da shawara, masu sayarwa da manoma a Tennessee ke gani a cikin filayen.
Don haka, shine lokacin firgita?a'a.Duk da haka, lokaci ya yi da za a sake tantance sarrafa ciyawa.Yanzu, sarrafa maganin ciyawa yana da mahimmanci fiye da kowane lokaci.Wannan shine dalilin da ya sa muke jaddada amfani da maganin herbicides a cikin auduga, irin su paraquat, glufosinate, Valor, diuron, metazox da MSMA.
Lokacin da muke sa ran 2021, yanzu ya zama dole a yi amfani da ragowar feshin PRE yadda ya kamata akan Palmer.Bugu da ƙari, dole ne a yi amfani da 'yanci nan da nan bayan amfani da dicamba don kawar da tserewa.A ƙarshe, binciken farko ya nuna cewa DR Palmer mar kuma zai kasance mafi juriya ga 2,4-D.
Saboda haka, wannan ya sa Liberty ya zama mafi mahimmancin maganin ciyawa a cikin tsarin sarrafa ciyawa na Xtend da Enlist amfanin gona.
Dr. Larry Steckel kwararre ne kan ciyawa a Jami'ar Tennessee.Duba duk labarun marubuci anan.