Cruciferous Plant Diseases - Tiv Thaiv Thiab Kho Qhov Ncauj Dawb Ntawm Cov Zaub Zaub

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Cruciferous Plant Diseases - Tiv Thaiv Thiab Kho Qhov Ncauj Dawb Ntawm Cov Zaub Zaub
Cruciferous Plant Diseases - Tiv Thaiv Thiab Kho Qhov Ncauj Dawb Ntawm Cov Zaub Zaub

Video: Cruciferous Plant Diseases - Tiv Thaiv Thiab Kho Qhov Ncauj Dawb Ntawm Cov Zaub Zaub

Video: Cruciferous Plant Diseases - Tiv Thaiv Thiab Kho Qhov Ncauj Dawb Ntawm Cov Zaub Zaub
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Cruciferous nroj tsuag kab mob yog cov uas tawm tsam cov tswv cuab ntawm tsev neeg Brassicaceae xws li zaub paj, zaub paj, zaub qhwv, thiab zaub qhwv. Dawb chaw fungus yog ib yam kab mob uas nyiam cov nplooj xoob ntawm cov zaub no thiab yog li muaj kev hem thawj rau spinach, kale, thiab turnips dua li lub taub hau nruj ntawm cabbage los yog paj taub hau ntawm cauliflower thiab broccoli.

Ntsuab Ntsuag Kab Mob

Cov kab mob no tshwm sim los ntawm ib hom kab mob Cercospora thiab tau dhau los ua ntau dua nyob rau xyoo tas los no. Qhov chaw dawb ntawm nplooj zaub yog ib qho ntawm ntau yam teeb meem ntawm cov kab mob fungal. Nws kuj mus los ntawm lub npe frogeye.

Cov kab mob dawb paug nthuav tawm raws li ncig mus rau qhov tsis sib xws uas muaj li ntawm ¼ txog ½ nti (6 hli mus rau 1 cm.) hla thiab tawg thoob plaws nplooj. Nws pib raws li lub teeb ci, qhuav me ntsis thiab sai sai tig mus rau papery dawb lesions ntawm nplooj ntoos ncig los ntawm ib tug halo ntawm daj los yog daj ntseg ntsuab. Cov pob txha loj tuaj thiab sib koom ua ke. Chlorophyll ntau lawm yog txo qis thaum thaj chaw ntsuab ploj mus thiab tsis ntev cov nplooj pib daj thiab tuag.

dawb chaw ntawm nplooj zaub tuaj yeem rhuav tshem cov qoob loo ntawm cov yub lossis ua rau lawv tawg loj heev. Cov nroj tsuag laus tuaj yeem muaj sia nyob qhov poob ntawm lawv cov nplooj sab nrauv.

Cruciferous fungal teeb meem, xws li covCov kab mob dawb paug, kis tau los ntawm cov nroj tsuag yav dhau los lossis cov nroj tsuag ib puag ncig. Lawv tau yug los ntawm cua thiab pib nyob rau hauv qhov txias txias ntawm 55 mus rau 65 degrees F. (10-18 C.) thiab rainy huab cua ntawm lub caij nplooj ntoos hlav thaum ntxov, raws nraim thaum cruciferous zaub yuav tsum tau cog. Nws yuav hnyav dua li qhov kub thiab txias.

Control of Leaf Spot in Cruciferous Zaub

Kev tswj cov nplooj ntoo hauv cov zaub cruciferous yuav tsum pib sai li sai tau thaum pom cov kab mob cog qoob loo no. Txij li cov fungus ua rau cov nroj tsuag tsis muaj zog, nws tuaj yeem txhawb kev loj hlob ntawm lwm yam kab mob fungal. Cov tshuaj fungicides lossis tshuaj tsuag uas muaj tooj liab zoo li ua tau zoo tshaj plaws. Cov fungicides deteriorate sai sai, yog li ntawd, rov thov dua txhua lub lim tiam lossis ob lub lim tiam yog qhov tsim nyog los ua kom muaj teeb meem ntawm cov kab mob fungal ntawm bay.

Muaj ntau yam uas koj tuaj yeem ua tau rau kev tswj cov kab mob nplooj ntoos hauv cov zaub cruciferous uas tsis muaj dab tsi cuam tshuam nrog tshuaj tsuag lossis tshuaj kho mob, thiab thawj zaug yog kev huv. Fungal spores tuaj yeem ua rau lub caij ntuj no ntawm txhua yam khoom siv hauv lub vaj. Rau lub vaj me me, qhov no txhais tau hais tias tag nrho cov vaj khib nyiab yuav tsum tau muab tshem tawm thiab muab pov tseg thaum kawg ntawm lub caij. Rau thaj av loj, cov qoob loo yuav tsum tau plowing hauv qab tom qab sau kom cov organic teeb meem sai sai.

Thaum koj tsis muaj kev tswj hwm los nag lossis qhov kub thiab txias, koj tuaj yeem cog koj cov yub nrog chav txaus ntawm lawv los txhawb cov huab cua zoo thiab ua kom qhuav sai dua tom qab los nag. Koj tuaj yeem cuam tshuam qhov chaw dawb ntawm nplooj zaub los ntawm kev ywg dej hauv qab cov nroj tsuages tsis txhob hla lub taub hau, thiab tshem cov av nyob ib ncig ntawm koj lub vaj thaj av ntawm cov nroj tsuag uas tuaj yeem nqa cov kab mob.

Kev cog qoob loo yog lwm txoj hauv kev zoo ntawm kev tswj cov nplooj ntoo hauv cov zaub cruciferous thiab feem ntau lwm cov kab mob cruciferous. Cog koj cov zaub hauv ib qho chaw sib txawv hauv lub vaj txhua xyoo, tawm tsawg kawg yog ob xyoos ua ntej lawv rov qab los rau lawv qhov chaw qub.

Ib lus kawg los tiv thaiv kev kis kab mob ntawm cov kab mob dawb: ntxuav koj cov khoom vaj tsev tsis tu ncua thiab ntxuav koj txhais tes tom qab tshuaj xyuas cov nroj tsuag kab mob. Qhov no nrog rau lwm cov kev coj ua saum toj no yuav pab koj khaws cov kab mob dawb thiab lwm cov kab mob cruciferous tawm ntawm koj lub vaj.

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