Kev Kho Kab Xev Dawb: Yuav Ua Li Cas Tiv Thaiv Kab Xev Dawb

2024 Tus sau: Chloe Blomfield | [email protected]. Kawg hloov kho: 2023-12-15 23:55

Kuj hu ua Staghead lossis blister dawb, kab mob xeb dawb cuam tshuam rau cov nroj tsuag cruciferous. Cov nroj tsuag no yog tag nrho cov tswv cuab ntawm tsev neeg zaub qhwv (Brassicaceae) thiab suav nrog cov zaub xws li zaub qhwv, zaub qhwv, Brussels sprouts, thiab kale thiab tuaj yeem rhuav tshem koj cov qoob loo.

Kab Mob Dawb Xeb - Puas yog Xum Dawb?

xeb dawb yog dab tsi? Nws yog ib qho kab mob uas ua rau cov kab mob sib txawv ntawm cov kab mob dawb dawb qee zaum hu ua pustules uas thawj zaug tshwm sim ntawm cov nplooj hauv qab. Cov pob khaus zoo li no, hu ua sori, tsim nyob rau hauv daim tawv nqaij ntawm daim tawv nqaij (daim tawv nqaij) thiab tsis tuaj yeem muab pov tseg yam tsis muaj kev puas tsuaj rau nplooj. Cov qia thiab nplooj tuaj yeem ua rau twisted thiab deformed. Cov kab mob xeb dawb tuaj yeem thiab yuav kis tau rau cov paj thiab. Broccoli thiab cauliflower, tshwj xeeb tshaj yog, yuav tsim tag nrho cov deformed taub hau thiab rau cov gardeners uas sau cov noob rau xyoo tom ntej cog, cov noob yuav tsis muaj menyuam.

Dawb xeb yog ib qho ntawm ntau hom fungus Albugo. Nws feem ntau tshwm sim thaum hmo ntuj txias thiab ntub, thiab hnub sov. Lub sijhawm zoo tshaj plaws rau kev loj hlob cruciferous zaub kuj muab cov kev loj hlob zoo meej rau Albugo. Kev tswj cov kab mob xeb dawb yuav yooj yim yog tias peb tuaj yeem tswj cov caij nplooj ntoo hlav thiab lub caij nplooj zeegtxij li thaum nws loj hlob ntawm 57 thiab 68 degrees F. (14-20 C.). Hmoov tsis zoo, peb tuaj yeem tswj tsis tau qhov kub thiab txias ntau dua li peb tuaj yeem tswj lub caij nplooj ntoo hlav los nag los nag thaum sawv ntxov cov kab mob no adores.

Kev Kho Kab Xev Dawb

Yog tias koj lub vaj tau muaj kab mob xeb dawb yav dhau los, koj yuav tsum nrhiav cov kab mob tiv thaiv yav tom ntej. Tsis muaj cov tshuaj fungicides tshwj xeeb rau kev kho xeb dawb thiab thaum tus kab mob ua rau muaj kev loj hlob, nws yuav tsum ua me ntsis. Uas tau hais tias, fungicides siv los kho cov kab mob downy mildew yog qee zaum zoo tiv thaiv xeb dawb, tshwj xeeb tshaj yog cov qoob loo. Kev kho mob yuav tsum pib ntawm thawj cov tsos mob ntawm tus kab mob. Txoj hauv kev los tswj cov kab mob xeb dawb lossis yuav ua li cas tiv thaiv cov xeb dawb yog cov organic ntau.

Kev tswj cov kab mob xeb dawb yog nyob ntawm kev nkag siab ntawm lub neej voj voog ntawm fungi feem ntau. Fungi tsim tawm los ntawm kev tsim cov spores; me me, microscopic hlwb, txhua tus muaj peev xwm los ua ib tug fungus thiab yog li tsim ib tug tshiab colony - yam peb pom ntawm nplooj los yog qia. Vim lawv qhov loj me me, cov spores no tau yooj yim nqa los ntawm cov nroj tsuag mus rau tsob ntoo, lossis vaj rau vaj, los ntawm cua lossis dej. Txij li thaum muaj cov txheej txheem tiv thaiv, ntau ntawm cov spores tuaj yeem nteg dormant rau lub sijhawm ntev, muaj sia nyob hauv ob qho tib si txias thiab arid. Thaum cov xwm txheej zoo dua, lawv 'blossom.'

Qhov zais cia yuav ua li cas tiv thaiv xeb dawb yog ob zaug. Ua ntej yog tshem tawm ntawm qhov chaw uas cov spores nkaum. Lub vaj khib nyiab yuav tsum tsis txhob tso tseg rau lub caij ntuj no. Txawm tias cov nroj tsuag loj hlob uas zoo li noj qab haus huv tuaj yeem ua rau cov spores toskom kis tus kab mob rau lub caij nplooj ntoo hlav tom ntej. Pom tseeb tias muaj kab mob khib nyiab yuav tsum tau muab pov tseg kom deb ntawm thaj chaw vaj. Raws li nws yuav luag tsis tuaj yeem sau thiab rhuav tshem txhua qhov seem ntawm cov khib nyiab, xav txog tilling nws raws li lwm hom kev kho dawb xeb. Thaum tilling yuav tsis rhuav tshem cov spores, nws tuaj yeem tiv thaiv lawv los ntawm kev nthuav dav lawv xav tau.

Kauj Ruam thib ob ntawm kev tswj cov kab xeb dawb yog kev cog qoob loo. Cov txaj uas muaj kab mob yuav tsum tsis txhob rov cog nrog cov zaub cruciferous tsawg kawg peb xyoos.

Nco ntsoov, kev tu vaj tsev zoo yog qhov tseem ceeb hauv kev tswj cov kab xeb dawb nrog rau ntau yam kab mob hauv vaj, yog li ntawd, nws yuav tsum yog ib feem ntawm koj daim ntawv qhia hnub ua teb. Cov lus qub qub tseem muaj tseeb: ib qho kev tiv thaiv muaj nqis ib phaus kho.