Xyoo no kuv txiav txim siab sim cov tshuaj tua kab mob rau cov taum pauv thawj zaug. Kuv yuav paub li cas tias yuav sim cov tshuaj tua kab mob twg, thiab kuv yuav tsum siv nws thaum twg? Kuv yuav paub li cas yog tias nws pab tau?
Pawg neeg pab tswv yim txog qoob loo uas tau ntawv pov thawj hauv Indiana teb cov lus nug no suav nrog Betsy Bower, Ceres Solutions, Lafayette; Jamie Bultemeier, agronomist, A&L Great Lakes Lab, Fort Wayne; thiab Andy Like, tus neeg ua liaj ua teb thiab CCA, Vincennes.
Bower: Nrhiav kev xaiv cov tshuaj tua kab mob fungicide uas muaj ntau hom kev ua haujlwm uas yuav suav nrog tsawg kawg yog triazole thiab strobiluron. Qee qhov kuj suav nrog cov khoom xyaw tshiab SDHI. Xaiv ib qho uas muaj kev ua haujlwm zoo rau cov nplooj frogeye.
Muaj peb lub sijhawm ntawm theem taum pauv uas ntau tus neeg tham txog.Txhua lub sijhawm muaj nws qhov zoo thiab qhov tsis zoo.Yog tias kuv tshiab siv cov tshuaj tua kab mob taum pauv, kuv yuav tsom rau theem R3, thaum cov noob pib tsim. Thaum lub sijhawm no, koj tau txais kev npog zoo rau feem ntau ntawm cov nplooj hauv lub ru tsev.
Kev siv tshuaj tua kab mob R4 lig heev lawm tab sis nws yuav pab tau zoo heev yog tias xyoo no tsis muaj kab mob ntau. Rau cov neeg siv tshuaj tua kab mob thawj zaug, kuv xav tias R2, uas tawg paj tag, tseem ntxov dhau los siv tshuaj tua kab mob.
Tib txoj kev kom paub tias cov tshuaj tua kab mob puas ua rau cov qoob loo zoo dua yog muab ib daim kab kos uas tsis tau siv rau hauv daim teb. Tsis txhob siv cov kab kawg rau koj daim kab kos, thiab nco ntsoov ua kom qhov dav ntawm daim kab kos tsawg kawg yog qhov loj ntawm lub taub hau sib xyaw lossis lub voj voog sib xyaw.
Thaum xaiv cov tshuaj tua kab mob fungal, tsom mus rau cov khoom uas tswj tau cov kab mob uas koj tau ntsib hauv xyoo dhau los thaum koj mus saib koj cov teb ua ntej thiab thaum lub sijhawm sau qoob loo. Yog tias cov ntaub ntawv ntawd tsis muaj, nrhiav cov khoom siv dav dav uas muaj ntau dua ib hom kev ua haujlwm.
Bultemeier: Kev tshawb fawb qhia tau hais tias qhov txiaj ntsig zoo tshaj plaws ntawm kev nqis peev rau ib zaug siv tshuaj tua kab mob yog los ntawm kev siv R2 lig mus rau R3 thaum ntxov. Pib tshawb nrhiav cov teb taum pauv tsawg kawg yog txhua lub lim tiam pib thaum paj tawg. Ua tib zoo saib xyuas kab mob thiab kab tsuag nrog rau theem kev loj hlob kom ntseeg tau tias lub sijhawm siv tshuaj tua kab mob zoo tshaj plaws. R3 pom thaum muaj lub plhaub 3/16-nti ntawm ib qho ntawm plaub lub qhov saum toj kawg nkaus. Yog tias cov kab mob xws li pwm dawb lossis nplooj frogeye tshwm sim, koj yuav tsum tau kho ua ntej R3. Yog tias kev kho mob tshwm sim ua ntej R3, kev siv zaum ob yuav tsum tau tom qab thaum lub sijhawm sau qoob loo. Yog tias koj pom cov kab me me ntawm taum pauv, cov kab tsw phem, cov kab nplooj taum pauv lossis cov kab Japanese, kev ntxiv tshuaj tua kab rau hauv daim ntawv thov yuav raug pom zoo.
Nco ntsoov tso daim tshev tsis tau kho kom cov txiaj ntsig tuaj yeem sib piv.
Txuas ntxiv mus saib thaj teb tom qab siv tshuaj, tsom mus rau qhov sib txawv ntawm kev kis kab mob ntawm cov khoom uas tau kho thiab cov tsis tau kho. Yuav kom cov tshuaj tua kab mob ua rau cov qoob loo ntau ntxiv, yuav tsum muaj kab mob rau cov tshuaj tua kab mob kom tswj tau. Muab cov qoob loo piv rau ib sab ntawm cov khoom uas tau kho thiab tsis tau kho hauv ntau dua ib thaj chaw ntawm thaj teb.
Zoo li: Feem ntau, kev siv tshuaj tua kab mob nyob ib puag ncig theem kev loj hlob R3 muab cov txiaj ntsig zoo tshaj plaws. Kev paub txog cov tshuaj tua kab mob zoo tshaj plaws los siv ua ntej pib muaj kab mob tuaj yeem nyuaj. Hauv kuv qhov kev paub, cov tshuaj tua kab mob nrog ob hom kev ua haujlwm thiab qib siab ntawm cov nplooj frogeye tau ua haujlwm zoo. Txij li thaum nws yog koj thawj xyoo nrog cov tshuaj tua kab mob taum pauv, kuv yuav tawm ob peb daim kab xev lossis faib cov teb kom txiav txim siab txog kev ua tau zoo ntawm cov khoom.
Lub sijhawm tshaj tawm: Lub Rau Hli-15-2021