Dab tsi yog Southern Corn Leaf Blight Kab Mob: Kev Tswj Ntawm Southern Corn Leaf Blight

Cov txheej txheem:

Dab tsi yog Southern Corn Leaf Blight Kab Mob: Kev Tswj Ntawm Southern Corn Leaf Blight
Dab tsi yog Southern Corn Leaf Blight Kab Mob: Kev Tswj Ntawm Southern Corn Leaf Blight

Video: Dab tsi yog Southern Corn Leaf Blight Kab Mob: Kev Tswj Ntawm Southern Corn Leaf Blight

Video: Dab tsi yog Southern Corn Leaf Blight Kab Mob: Kev Tswj Ntawm Southern Corn Leaf Blight
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Anonim

Tan me ntsis ntawm nplooj pob kws yuav txhais tau tias koj cov qoob loo raug kev txom nyem los ntawm cov pob kws sab qab teb. Cov kab mob phem no tuaj yeem rhuav tshem lub caij sau qoob loo. Tshawb nrhiav seb koj cov pob kws muaj kev pheej hmoo thiab yuav ua li cas txog nws hauv kab lus no.

Southern Corn Leaf Blight yog dab tsi?

Nyob rau xyoo 1970, 80 mus rau 85 feem pua ntawm cov pob kws cog hauv Teb Chaws Asmeskas yog tib yam. Yog tsis muaj biodiversity, nws yog ib qho yooj yim rau ib tug fungus txav mus rau hauv thiab so tawm ib tug qoob loo, thiab qhov ntawd yog raws nraim li cas tshwm sim. Hauv qee thaj chaw, qhov poob tau kwv yees li ntawm 100 feem pua thiab ua rau cov nyiaj poob ib ncig ntawm ib txhiab daus las.

Peb ntse dua txog txoj kev peb cog pob kws hnub no, tab sis cov fungus lingers. Nov yog cov tsos mob ntawm cov pob kws blight yav qab teb:

  • Kab mob ntawm cov hlab ntsha hauv cov nplooj uas ntev txog ib nti (2.5 cm.) ntev thiab ib-quarter nti (6 mm.) dav.
  • Cov kab mob sib txawv ntawm cov xim tab sis feem ntau yog tan thiab oblong lossis spindle-puab.
  • Kev puas tsuaj uas pib nrog nplooj qis, ua haujlwm nws txoj hauv kev nce tsob ntoo.

Cov nplooj pob kws yav qab teb, tshwm sim los ntawm cov kab mob bipolaris maydis, tshwm sim thoob ntiaj teb, tab sis nws ua qhov kev puas tsuaj ntau tshaj plaws hauv huab cua sov, huab cua xws li sab qab teb Asmeskas Nploojblights nyob rau sab qaum teb thiab sab hnub poob kev nyab xeeb yog tshwm sim los ntawm txawv fungi. Txawm li cas los xij, cov tsos mob thiab kev kho mob tau piav qhia txog kev tswj hwm ntawm cov pob kws sab qab teb nplooj blight tej zaum yuav zoo ib yam li lwm cov nplooj blight.

Southern Corn Leaf Blight Treatment

Tseem tsis muaj txoj hauv kev los cawm cov qoob loo uas muaj cov kab mob kab mob yav qab teb, tab sis muaj ob peb yam uas koj tuaj yeem ua kom txuag tau cov qoob loo yav tom ntej. Cov fungus overwinters nyob rau hauv cov khib nyiab pov tseg nyob rau hauv lub pob kws teb, yog li ntxuav cov pob kws stalks thiab nplooj nyob rau thaum xaus ntawm lub caij thiab mus txog rau hauv av kom huv si thiab feem ntau yuav pab tau cov cag thiab underground stems tawg.

Kev cog qoob loo mus ntev mus rau kev pab tiv thaiv kab mob. Tos plaub xyoos tom qab cog pob kws hauv ib cheeb tsam ua ntej yuav cog pob kws nyob rau thaj tsam ntawd dua. Lub caij no, koj tuaj yeem cog lwm cov qoob loo zaub hauv thaj av. Thaum koj cog pob kws dua, xaiv ntau yam resistant rau yav qab teb pob kws nplooj blight (SLB).

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