Vim li cas thiaj tsis tshuaj herbicides ib leeg tso tseg Waterhemp?

Waterhemp tseem tiv thaiv kev tswj hwm thoob plaws Midwest. Ib zaug tiv taus tshuaj tua kab mob los ntawm ob peb pawg, cov pej xeem hauv Illinois tam sim no shrug tawm rau qhov chaw sib txawv ntawm kev ua, thiab ntau dua yuav tuaj.

Aaron Hager, tus kws tshawb fawb ntawm University of Illinois Extension hais tias "Nws tsuas yog mob zuj zus lawm xwb." "Peb tam sim no nyob rau ntawm rau, thiab tus lej ntawd yuav nce sai sai."

Txawm tias muaj teeb meem ntau dua, cov kws tshawb fawb tau sau cov tshuaj tiv thaiv kab mob metabolic, txhais tau tias cov nroj tsuag tau hloov kho lub peev xwm los rhuav tshem cov tshuaj tua kab ua ntej lawv tuaj yeem ua haujlwm.

"Cov pej xeem waterhemp tam sim no muaj txiaj ntsig zoo, qee zaum txawm tias muaj txiaj ntsig zoo dua, ntawm cov khoom lag luam metabolizing xws li S-metolachlor ua pob kws cog qoob loo," Hager tau hais. "Nws yog kev xav ntshai."

Metabolic resistance txhais li cas? Ib txwm "lub hom phiaj-site" kuj tshwm sim thaum cov tshuaj tua kab mob tsis tuaj yeem khi rau nws lub hom phiaj protein. Metabolic tsis kam yog deb npaum li cas.

Hager piav qhia tias "Thaum koj tab tom cuam tshuam feem ntau nrog kev tiv thaiv metabolic, koj tsis muaj kev kwv yees txhua," Hager piav qhia. "Ib tshuaj tua kab mob uas ua haujlwm xyoo tas los yuav ua tsis tau rau xyoo no, txawm tias koj tsis tau txau nws rau ntawm daim teb ua ntej."

Ob peb tshuaj tua kab mob tseem ua haujlwm ntseeg tau

Hauv cov taum pauv, glufosinate (Liberty) tseem yog qhov kawg siv tau zoo tom qab kev xaiv, tab sis nws lub neej yav tom ntej tsis tau lees paub.

"Technically, nws yog tib qho kev tshaj tawm - cov khoom uas peb tsis tau muaj ntaub ntawv tiv thaiv," Hager hais. "Tab sis kuv paub tseeb tias nws muaj nyob rau hauv ib qho chaw. Peb tsuas yog tsis tau taug kev qhov chaw ntawd."

Cov tshuaj tua kab mob seem tseem ua lub luag haujlwm tseem ceeb, tab sis txawm tias lawv tau ploj mus ntev. Hager tau hais tias "Yuav ua li cas ib zaug muab rau lub lis piam tswj hwm tam sim no tsuas yog muab peb," Hager hais. "Nyob rau hauv lwm xyoo caum, peb yuav muaj hmoo tau txais ib los yog ob lub lis piam ntawm residual kev ua si."

Tshiab Chemistry Yuav Tsis Cawm Peb

Ntau qhov kev ua haujlwm tshiab, suav nrog diflufenican, uas Bayer npaj yuav tshaj tawm lub sijhawm rau xyoo 2026 hauv Asmeskas cov qoob loo, muab qee cov lus cog tseg. Hager ceeb toom tawm tsam saib lawv li cov mos txwv nyiaj.

Nws tau hais tias "Txhua lub sijhawm ib hom khoom lag luam-jug tshiab tawm hauv khw, txhua tus siv nws," nws hais. "Qhov ntawd ua rau muaj kev xaiv loj heev los ntawm xyoo 1. Yog tias peb ua qhov peb ib txwm ua, qhov kev ua haujlwm zoo ntawm cov chemistry yuav raug txo kom tsawg."

"Peb tau qhib cov jugs sib txawv rau 30 xyoo thiab tseem muaj dej hemp," Hager hais. "Chemistry ib leeg tsis yog kev daws teeb meem."

Stacked -cov noob taum zoo, xws li Enlist E3 thiab XtendFlex, tau ua rau cov neeg ua liaj ua teb hloov tau yooj yim dua, tab sis Hager tau hais tias lawv kuj txhawb "tsuas yog tshuaj tsuag" lub siab.

"Qhov kev xaiv tshuaj tua kab ntau dua koj muaj, qhov ntau dua koj yuav muaj tshuaj tsuag -tsuas yog txoj hauv kev," nws hais. "Yog tias koj tsis tiv thaiv cov noob qoob loo, nws tsis muaj teeb meem ntau npaum li cas hauv cov noob."

Lub neej yav tom ntej ntawm Dicamba

Txawm hais tias cov khoom lag luam dicamba rov qab los nrog cov ntawv txwv tshiab, Hager ua xyem xyav tawm - cov teeb meem ntawm lub hom phiaj tuaj yeem raug tshem tawm.

Nws tau hais tias "Peb tau muaj kev hloov pauv thiab tawm- cov teeb meem nrog dicamba txij li xyoo 1960," nws hais. "Koj tuaj yeem txo lawv, tab sis koj tsis tuaj yeem coj lawv mus rau xoom. Nws yog ib qho teeb meem ntawm nplai. Kev tshuaj tsuag ob peb thaj av tsis zoo ib yam li txau ib nrab lab evkawj ib hnub."

Hager piav qhia tias dicamba's chemistry ua rau nws muaj feem ua rau vapor drift nyob rau hauv txoj cai ib puag ncig. Txawm tias qis- cov qauv kev hloov pauv hloov pauv tuaj yeem hloov pauv thaum kub nce lossis av noo poob, txav tawm - lub hom phiaj teev lossis hnub tom qab thov. Thaum drift-txo cov neeg ua haujlwm thiab lub tshuab nozzle pab txo cov khoom me me, lawv tsis tuaj yeem tiv thaiv vapor txav ib zaug dicamba nyob rau hauv qhov chaw.

Hager tau hais tias "Thaum koj saib cov nyiaj tau siv thoob plaws toj roob hauv pes, txawm tias feem pua ​​​​ntawm cov kev hloov pauv me me dhau los ua qhov teeb meem loj," Hager tau hais. "Yog vim li cas peb tseem pom kev raug mob ntawm cov nroj tsuag rhiab heev, txawm tias cov neeg thov ua raws li daim ntawv lo."

Cov neeg tsim cai lij choj hauv Illinois tau tshaj tawm cov nqi txwv rau dicamba thoob lub xeev vim kev puas tsuaj rau cov ntoo thiab cov ntoo. Hager hais tias "Public outcry yog tiag tiag," Hager hais. "Yog tias qhov kev txwv no tshwm sim, nws yuav tsis cuam tshuam rau cov taum pauv xwb. Nws yuav cuam tshuam rau pob kws, pastures, thiab txawm tias kev saib xyuas nyom."

Hauv xyoo 2024 thiab 2025, lub caij tsis muaj kev tshaj tawm - siv dicamba hauv cov taum pauv, Hager pom cov taum ntshiab ntau dua. Nws tau hais tias "Tib neeg tab tom nrhiav seb yuav ua li cas thiaj ua rau Enlist system ua haujlwm," nws hais.

Tswj Nyiaj Txiag Nyiaj Txiag

Hager tau hais tias "Qhov kev ua yuam kev loj tshaj plaws uas cov neeg ua liaj ua teb ua yog tso cai rau cov noob qoob loo," Hager hais. "Qhov ntawd ib txwm yog qhov yuam kev loj tshaj plaws, thiab nws ib txwm yuav yog."

Nws tau taw qhia rau cov neeg cog qoob loo uas nyob ua ntej ntawm waterhemp los ntawm kev sib koom ua ke cov av zoo- siv cov kev pab cuam nrog rau lub sijhawm, thiab los ntawm lub cev tshem tawm cov neeg muaj sia nyob ua ntej sau qoob.

"Yog tias koj tuaj yeem tiv thaiv kev tsim cov noob rau peb lossis plaub xyoos sib law liag, cov pejxeem yuav poob qis," nws hais. "Nov yog li cas koj rov qab ua ntej nws."

Tab sis kev ceev faj yuav tsum nyob twj ywm. "Cov noob txav," nws ntxiv. "Mob siab, noog, khoom siv, lawv yuav coj nws rov qab yog tias koj tso tseg."

Ib lub tswv yim sib koom ua ke

Cov kev kawm tiav tam sim no yog nyob ntawm ntau yam, ntxiv cov tswv yim:

Residual herbicides, txheej thiab sijhawm precisely.
 

Mechanical tswjxws li kev cog qoob loo lossis tes- rub qhov twg ua tau.
 

Npog cov qoob loouas muab ntom ntom biomass. "Nws zoo li loj hlob koj tus kheej mulch," Hager hais. "Qhov ntau npog, qhov ntau tsuj."
 

Sau cov nroj tsuag -cov noob tswjcov cuab yeej xws li noob cuam tshuam mills. "Lawv tsis yog kev kho khawv koob, tab sis lawv tuaj yeem pab txo cov noob qoob," nws hais.
 

Cov technologies tshiab, suav nrog robotics thiab automation, uas qhia cov lus cog tseg tab sis tseem xyoo dhau los ntawm kev siv dav.
 

Hager tau hais tias "Txhua yam uas pab txo cov noob qoob loo yog qhov txiaj ntsig," Hager hais. "Qhov tseem ceeb yog ua ib yam dab tsi ntxiv rau kev txau."

Txoj Kev Ua Ntej

Waterhemp tsis mus qhov twg los xij, tab sis cov neeg ua liaj ua teb uas hloov kho thiab tso tseg cov nroj tsuag mus rau cov noob tuaj yeem tswj tau rov qab.

"Cov nroj tsuag yeej tsis nce yield. Lawv tsuas txo nws," Hager hais. "Cov lus nug yog ntau npaum li cas cov txiaj ntsig poob koj txaus siab ua ntej koj hloov koj txoj hauv kev. Cov nroj no ua si los ntawm nws tus kheej txoj cai, thiab yog tias koj xav tuav nws, koj yuav tsum ua si los ntawm lawv ib yam nkaus."