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Taum pauv fungicides: Qhov koj yuav tsum paub

Kuv tau txiav txim siab sim ua fungicides ntawm taum pauv thawj zaug rau xyoo no. Kuv yuav ua li cas thiaj paub tias cov tshuaj tua kab mob twg sim ua, thiab thaum twg kuv yuav tsum siv nws? Kuv yuav paub tau li cas yog tias nws pab?

Lub vaj huam sib luag ntawm Indiana tus neeg pab tswv yim cog qoob loo teb cov lus nug no suav nrog Betsy Bower, Ceres Solutions, Lafayette; Jamie Bultemeier, agronomist, A&L Great Lakes, Fort Wayne; thiab Andy Nyiam, ua liaj ua teb thiab CCA, Vincennes.

Bower: Saib kom xaiv cov khoom siv fungicide nrog cov qauv sib txawv ntawm cov kev coj ua uas yuav muaj tsawg kawg yog ib qho triazole thiab strobiluron. Qee tus kuj suav nrog cov tshuaj noj tshiab SDHI. Xaiv ib qho uas muaj cov haujlwm zoo ntawm cov nplooj ntoo nplooj.

Muaj peb ntu kua qab sij hawm ncua uas ntau tus neeg thamTxhua lub sijhawm nws muaj nws qhov zoo thiab qhov tsis zoo. Yog tias kuv yog tus tshiab los siv cov taum pauv fungicide, Kuv yuav tsom rau qib R3, thaum cov ntaub qhwv tsuas yog pib tsim. Nyob rau theem no, koj tau txais kev pab zoo rau feem ntau ntawm cov nplooj hauv cov nplooj saum toj.

Daim ntawv thov R4 yog qhov zoo nkauj lig nyob rau hauv qhov kev ua si tab sis tuaj yeem ua haujlwm tau zoo yog tias peb muaj xyoo kab mob tsawg. Rau thawj zaug cov neeg siv fungicide, Kuv xav tias R2, tag nrho cov paj tawg, dhau mus ntxov los thov lub fungicide.

Tib txoj kev kom paub tias cov tshuaj tua kab mob zoo txhim kho cov paib yog suav nrog cov kab ntawv kos nrog tsis muaj daim ntawv thov hauv daim teb. Tsis txhob siv cov kab kawg rau koj daim tshev pov tseg, thiab nco ntsoov ua kom qhov dav ntawm daim tshev ntsuas qhov tsawg kawg yog qhov loj me ntawm lub pob taws sib txuas lossis cov kab sib txuas.

Thaum xaiv cov fungicides, tsom rau cov khoom lag luam uas tswj cov kab mob uas koj tau ntsib hauv cov xyoo dhau los thaum soj ntsuam koj cov liaj ua ntej thiab thaum sau qoob. Yog tias cov ntaub ntawv tsis muaj, nrhiav kom pom cov khoom lag luam dav dav uas muaj ntau dua ib hom kev nqis tes ua.

Bultemeier: Kev tshawb nrhiav pom tias qhov loj tshaj rov qab los ntawm kev nqis peev rau ib daim ntawv thov ntawm fungicide tau los ntawm R2 lig rau thaum ntxov R3 daim ntawv thov. Pib scouting taum pauv tsawg kawg ib lis piam pib thaum tawg paj. Ua kom pom tseeb txog kab mob thiab kab tsuag nrog rau qib kev loj hlob kom ntseeg tau tias qhov zoo tshaj plaws ua kom daim ntawv thov lub sij hawm tua neeg. R3 raug sau tseg thaum muaj lub 3/16-nti plhaw ntawm ib qho ntawm plaub kis loj. Yog tias cov kab mob nyiam cov pwm dawb los yog frogeye nplooj tawv muag pom, koj yuav tsum tau kho ua ntej R3. Yog tias kev kho mob tshwm sim ua ntej R3, tuaj yeem xav tau daim ntawv thov thib ob tom qab lub sijhawm sau nplej. Yog tias koj pom cov kua ntses tseem ceeb aphids, stinkbugs, taum nplooj kab los yog Japanese kab, ntxiv rau ib qho tshuaj tua kab rau hauv daim ntawv thov yuav raug nquahu.

Nco ntsoov tawm hauv kev kuaj xyuas tsis tau yog li tso zis tuaj yeem piv.

Txuas ntxiv rau cov tub luam tom qab daim ntawv thov, tsom mus rau qhov sib txawv hauv cov kab mob siab ntawm qhov kho thiab tsis kho. Rau cov fungicides muab lub txiaj ntsig kom nce ntxiv, yuav tsum muaj kab mob tshwm sim rau lub fungicide los tswj. Sib piv cov txiaj ntsig ib sab ntawm kev kho thiab tsis kho nyob rau ntau tshaj ib cheeb tsam ntawm cov teb.

Zoo li: Feem ntau, daim ntawv thov fungicide nyob ib puag ncig R3 qib theem muab cov txiaj ntsig tau zoo tshaj plaws. Paub txog cov tshuaj tua kab mob zoo tshaj plaws los siv ua ntej pib qhov mob tuaj yeem yog qhov nyuaj. Hauv kuv kev paub, cov kab mob fungicides nrog ob hom kev txiav txim siab thiab kev ntsuas lub siab ntawm frogeye nplooj seeb tau ua haujlwm zoo. Txij li nws yog koj thawj xyoo nrog taum pauv fungicides, Kuv yuav tawm ob peb daim phiaj coj los sib cais lossis txiav cov teb kom txiav txim tau zoo ntawm cov khoom.


Lub sijhawm tshaj tawm: Lub Rau Hli-15-2021