Late Blight Of Potatoes: Lub Tswv Yim Kho Qos Qes Late Blight Hauv Lub Vaj

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Late Blight Of Potatoes: Lub Tswv Yim Kho Qos Qes Late Blight Hauv Lub Vaj
Late Blight Of Potatoes: Lub Tswv Yim Kho Qos Qes Late Blight Hauv Lub Vaj

Video: Late Blight Of Potatoes: Lub Tswv Yim Kho Qos Qes Late Blight Hauv Lub Vaj

Video: Late Blight Of Potatoes: Lub Tswv Yim Kho Qos Qes Late Blight Hauv Lub Vaj
Video: See how Potato Late Blight develops 2024, Kaum ib hlis
Anonim

Txawm tias koj tsis paub nws, tej zaum koj tau hnov txog cov qos yaj ywm lig. Dab tsi yog qos yaj ywm lig blight - tsuas yog ib qho ntawm cov kab mob loj tshaj plaws hauv keeb kwm ntawm xyoo 1800's. Tej zaum koj yuav paub nws zoo dua los ntawm Irish qos yaj ywm kev tshaib kev nqhis ntawm 1840's uas ua rau kev tshaib plab ntawm ntau tshaj li ib lab tus tib neeg nrog rau kev khiav tawm ntawm cov neeg uas muaj sia nyob. Qos yaj ywm nrog lig blight tseem suav hais tias yog kab mob hnyav yog li nws tseem ceeb rau cov neeg cog qoob loo kom kawm txog kev kho qos yaj ywm lig blight hauv lub vaj.

Qos yaj ywm lig Blight yog dab tsi?

Qe blight ntawm qos yaj ywm yog tshwm sim los ntawm cov kab mob Phytophthora infestans. Feem ntau yog kab mob ntawm qos yaj ywm thiab txiv lws suav, lig blight yuav cuam tshuam rau lwm tus tswv cuab ntawm tsev neeg Solanaceae ib yam nkaus. Cov kab mob fungal no txhawb nqa los ntawm lub sijhawm txias, huab cua ntub. Cov nroj tsuag muaj kab mob yuav raug tua tsis pub dhau ob peb lub lis piam tom qab kis kab mob.

Symptoms of Late Blight in Potatoes

Cov tsos mob pib ntawm lig blight muaj xws li purplish-xim av tshwm sim ntawm qhov chaw ntawm cov qos yaj ywm. Thaum kuaj xyuas ntxiv los ntawm kev txiav rau hauv tuber, reddish-xim av qhuav rot tuaj yeem pom. Feem ntau, thaum cov tubers raug mobNrog lig blight, lawv tau qhib rau cov kab mob thib ob uas yuav ua rau kev kuaj mob nyuaj.

Cov nplooj ntawm cov nroj tsuag yuav muaj cov kab mob uas muaj dej tsaus uas nyob ib puag ncig los ntawm cov kab dawb dawb thiab cov stems ntawm cov nroj tsuag muaj kab mob yuav raug mob nrog xim av, greasy saib qhov txhab. Cov kab mob no feem ntau yog nyob rau ntawm nplooj ntoo thiab qia qhov chaw uas cov dej sau los yog cov nplooj nplooj nyob rau saum cov qia.

Tshuaj Qos Qos Qes Qe

Cov kab mob kab mob yog lub hauv paus ntawm cov kab mob P. infestans, suav nrog cov nyob hauv cia, tuaj yeem pab dawb, thiab cov noob qos yaj ywm. Nws kis tau mus rau cov nroj tsuag tshiab tshiab los tsim cov kab mob hauv huab cua uas kis tus kab mob mus rau cov nroj tsuag nyob ze.

Siv tsuas muaj ntawv pov thawj kab mob tsis pub cov noob thiab cov qoob loo tiv taus qhov ua tau. Txawm hais tias siv cov cultivars resistant, ib daim ntawv thov ntawm fungicides yuav tsum warranted. Tshem tawm thiab rhuav tshem cov neeg tuaj yeem pab dawb nrog rau cov qos yaj ywm uas tau raug tshem tawm.

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