Southern Blight Carrot Control - Kawm Txog Carrot Southern Blight Treatment

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Southern Blight Carrot Control - Kawm Txog Carrot Southern Blight Treatment
Southern Blight Carrot Control - Kawm Txog Carrot Southern Blight Treatment

Video: Southern Blight Carrot Control - Kawm Txog Carrot Southern Blight Treatment

Video: Southern Blight Carrot Control - Kawm Txog Carrot Southern Blight Treatment
Video: How to Prevent Control Identify Early Tomato Blight SIX Ways 2024, Kaum ib hlis
Anonim

Ib tug kab mob zaub ntug hauv paus uas coincides nrog sov sov nyob ze rau sau yog hu ua zaub ntug hauv paus blight. Dab tsi yog blight yav qab teb ntawm carrots? Nyeem rau kom paub seb yuav txheeb xyuas cov carrots nrog rau yav qab teb blight thiab yog tias muaj ib txoj hauv kev los tswj cov zaub ntug hauv qab sab qab teb.

Dab tsi yog Southern Blight ntawm Carrots?

Carrot yav qab teb blight yog ib tug fungus (Sclerotium rolfsii) uas yog txuam nrog sov sov tom qab los nag hnyav. Thaum muaj kab mob me me hauv vaj tsev, yav qab teb blight yog qhov teeb meem loj dua rau cov neeg cog qoob loo. Qhov no yog vim hais tias cov fungus cuam tshuam rau ntau pawg ntawm cov qoob loo (tshaj 500 hom!), tshwj xeeb tshaj yog cov loj hlob nyob rau hauv tropical mus rau subtropical regions thiab ciaj sia nyob rau lub sij hawm ntev nyob rau hauv cov av.

Cov tsos mob ntawm Carrots nrog Southern Blight

Tus kab mob fungal no yog tus cwj pwm los ntawm cov mos mos, dej lwj ntawm cov cag ntoo ze lossis ntawm cov kab av. Sab saum toj ntawm carrots wilt thiab tej zaum yuav daj raws li tus kab mob mus thiab mats ntawm dawb mycelium loj hlob nyob rau hauv lub hauv paus thiab av nyob ib ncig ntawm lub zaub ntug hauv paus. Cov qauv so me me (sclerotia) txhim kho ntawm cov mats ntawm mycelium.

Wilting tej zaum yuav misdiagnosed vim yog los ntawmFusarium los yog Verticullum; Txawm li cas los xij, nyob rau yav qab teb blight kab mob, nplooj feem ntau nyob twj ywm ntsuab. Cov kab mob wilt kuj yuav raug xav tias, tab sis tsis zoo li cov kab mob wilt, cov lus qhia ntawm mycelium nyob ib ncig ntawm cov zaub ntug hauv paus yog cov cim qhia meej ntawm S. rolfsii.

Thaum cov kab mob tshwm sim ntawm cov av saum npoo, cov zaub ntug hauv paus twb rotted.

Southern Blight Carrot Control

blight yav qab teb yog qhov nyuaj rau tswj vim nws kis tau ntau tus tswv thiab yooj yim nyob hauv av rau lub sijhawm ntev. Kev cog qoob loo yog ib feem ntawm kev sib koom ua ke ntawm kev tswj tus kab mob.

Nrog rau kev cog qoob loo, siv cov kab mob tsis muaj kab mob lossis tiv thaiv kab mob thiab cog qoob loo thaum yav qab teb blight tau kuaj pom. Sib sib zog nqus plough nyob rau hauv los yog rhuav tshem tej kab mob nroj tsuag. Nco ntsoov tias txawm tias thaum plowing hauv qab, cov kab mob hauv av tseem tuaj yeem muaj sia nyob thiab tsim kev sib kis yav tom ntej.

Kho cov av nrog cov chiv chiv, chiv, thiab tshuaj lom neeg tuaj yeem pab tswj cov kab mob yav qab teb. Muab cov kev hloov pauv no nrog kev plowing tob.

Yog tias tus kab mob hnyav, xav txog kev solarizing thaj chaw. Sclerotia tuaj yeem rhuav tshem hauv 4-6 teev ntawm 122 F. (50 C.) thiab tsuas yog 3 teev ntawm 131 F. (55 C.). Dej thiab npog thaj chaw muaj kab mob ntawm cov av nrog cov ntawv ntshiab polyethylene thaum lub caij ntuj sov sov kom txo cov Sclerotia, thiab yog li qhov tshwm sim ntawm yav qab teb blight.

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