Strawberry Cercospora Leaf Spot - Kho Strawberries Nrog Nplooj Kab Mob

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Strawberry Cercospora Leaf Spot - Kho Strawberries Nrog Nplooj Kab Mob
Strawberry Cercospora Leaf Spot - Kho Strawberries Nrog Nplooj Kab Mob

Video: Strawberry Cercospora Leaf Spot - Kho Strawberries Nrog Nplooj Kab Mob

Video: Strawberry Cercospora Leaf Spot - Kho Strawberries Nrog Nplooj Kab Mob
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Cercospora yog ib yam kab mob ntau yam ntawm zaub, ornamentals, thiab lwm yam nroj tsuag. Nws yog kab mob fungal nplooj uas feem ntau tshwm sim thaum lub caij nplooj ntoo hlav lig txog rau lub caij ntuj sov. Cercospora ntawm strawberries tuaj yeem cuam tshuam rau cov qoob loo yields thiab cog kev noj qab haus huv. Tau txais qee cov lus qhia txog kev paub txog tus kab mob no strawberry nplooj thiab yuav tiv thaiv nws li cas.

Symptoms of Strawberry Cercospora Leaf Spot

Peb txhua tus tos ntsoov rau cov thawj chubby, ripe, liab strawberries. Lub resulting strawberry shortcake thiab strawberry topped ice cream tsuas yog qee qhov kev xyiv fab. Nplooj ntawm strawberry tuaj yeem hem cov txiv hmab txiv ntoo uas cov nroj tsuag tsim tawm, yog li nws yog ib qho tseem ceeb kom paub cov cim qhia ntawm tus kab mob thiab yuav ua li cas tswj cercospora, cov kab mob uas ua rau mob.

Cov paib thawj zaug yog me me, puag ncig mus rau qhov tsis sib xws liab doog ntawm nplooj. Raws li cov neeg paub tab, lawv tig daj mus rau xim dawb ntawm cov chaw nrog cov npoo liab. Qhov chaw ua necrotic thiab qhuav, feem ntau ntog tawm ntawm nplooj. Cov hauv qab ntawm nplooj tsim cov pob uas xiav mus rau xim xim.

Tus kab mob kis tau los ntawm ntau yam vim qee qhov kis tau ntau dua li lwm tus. Nplooj poob feem ntau tshwm sim thiab, hauvCov kab mob loj heev ntawm nplooj ntoos ntawm strawberry, cov nroj tsuag qhov tseem ceeb yog cuam tshuam, ua rau cov txiv hmab txiv ntoo tsawg dua. Cov nplooj ntawm paj kuj yuav daj thiab qhuav.

Caus of Cercospora of Strawberries

Strawberries nrog nplooj nplooj pib tshwm sim thaum lub caij nplooj ntoo hlav lig. Qhov no yog thaum sov txaus tab sis huab cua tseem ntub, ob qho tib si cov xwm txheej uas txhawb kev tsim cov spores. Cov cercospora fungi overwinter ntawm cov kab mob lossis cov nroj tsuag, cov noob, thiab cov khib nyiab pov tseg.

Cov kab mob kis tau sai heev nyob rau lub sijhawm sov, av noo, huab cua ntub thiab qhov chaw cov nplooj tseem ntub dej ntau lub sijhawm. Txij li thaum strawberries yog cov nroj tsuag colony, lawv qhov ze ze tso cai rau cov kab mob kis tau sai. Cov kab mob kis tau los ntawm nag txaws, dej, thiab cua.

Tiv thaiv Strawberry Cercospora Nplooj

Raws li cov nroj tsuag feem ntau, kev huv huv, kev ywg dej zoo, thiab kev cog qoob loo kom zoo tuaj yeem tiv thaiv qhov tshwm sim ntawm strawberries nrog nplooj.

Khaws cov nroj tsuag kom tsis txhob txaj, vim qee qhov yog tus tswv rau tus kab mob. Tsis txhob irrigating nroj tsuag los ntawm overhead thaum lawv yuav tsis muaj hnub ci txaus kom qhuav nplooj. Muab cov khib nyiab pov tseg kom tob los yog khawb nws thiab tshem tawm.

Ib daim ntawv thov ntawm fungicide thaum lub sij hawm tawg paj thiab ua ntej fruiting yuav txo tau kev sib kis thiab tshwm sim ntawm tus kab mob. Strawberry nplooj kab mob tsis tshua tua cov nroj tsuag tab sis lawv muaj kev txwv nyob rau hauv lawv lub peev xwm los sau hnub ci zog tig mus rau cog cov suab thaj, uas tuaj yeem txo lawv txoj kev noj qab haus huv thiab kev tsim khoom.

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