Late Blight Tomato Disease - Late Blight Symptoms And Treatment

Cov txheej txheem:

Late Blight Tomato Disease - Late Blight Symptoms And Treatment
Late Blight Tomato Disease - Late Blight Symptoms And Treatment

Video: Late Blight Tomato Disease - Late Blight Symptoms And Treatment

Video: Late Blight Tomato Disease - Late Blight Symptoms And Treatment
Video: After this treatment, tomatoes immediately bear fruit and never get sick with late blight 2024, Kaum ib hlis
Anonim

Kab mob lws suav lig yog qhov mob tsawg tshaj plaws uas cuam tshuam rau txiv lws suav thiab qos yaj ywm, tab sis nws kuj yog qhov kev puas tsuaj tshaj plaws. Nws yog qhov tseem ceeb hauv Irish Potato Famine ntawm xyoo 1850's, thaum ntau lab tus tib neeg tshaib plab vim muaj kev puas tsuaj los ntawm tus kab mob tuag taus no. Ntawm cov txiv lws suav, cov kab mob zoo li cov kab mob fungus tuaj yeem rhuav tshem cov qoob loo tsis pub dhau hnub yog tias muaj xwm txheej zoo. Kev soj ntsuam ceev faj thiab kev kho mob ua ntej tsuas yog kev tiv thaiv tawm tsam lig txiv lws suav blight.

Symptoms of Late Blight on Txiv lws suav

Phytophthora infestans, cov kab mob ua rau txiv lws suav lig blight, xav tau cov ntaub so ntswg kom ciaj sia. Sporangia los ntawm cov nroj tsuag muaj kab mob yog nqa los ntawm huab cua, qee zaum ob peb mais, thiab thaum lawv tsaws rau ntawm tus tswv tsev tsim nyog, germination yuav luag tam sim ntawd. Txiv lws suav lig blight tsuas yog ob peb teev los tuav. Txhua yam nws xav tau yog me ntsis noo noo ntawm nplooj los ntawm nag, pos huab, los yog thaum sawv ntxov dew.

Thaum kis tus kab mob, cov tsos mob lig yuav tshwm sim hauv peb lossis plaub hnub. Cov kab mob me me tshwm sim ntawm stems, nplooj, lossis txiv hmab txiv ntoo. Yog tias huab cua ntub thiab qhov kub nruab nrab - ib yam li feem ntau los nag lub caij ntuj sov hnub - cov kab mob yuav sporulate nyob ib ncig ntawm cov kab mob no thiab cov kab mob lws suav lig yuav npaj txhij.kis mus rau lwm lub vaj thiab dhau mus.

Cov kab mob me me ntawm cov txiv lws suav lig yog qhov nyuaj rau pom thiab qee zaum tsis pom. Cov tsos mob tshwm sim lig dhau los ua pom tseeb dua thaum thaj chaw ib puag ncig ntawm qhov txhab tshwm sim dej los yog bruised thiab tig grey-ntsuab los yog yellowed. Txhua tus kab mob lws suav lig tuaj yeem tsim txog li 300,000 sporangia ib hnub twg thiab txhua tus ntawm cov sporangium muaj peev xwm tsim tau qhov mob tshiab. Thaum pib, kab mob lws suav lig tuaj yeem cheb los ntawm daim av hauv ib lub lis piam. Cov nplooj ntoo yuav raug rhuav tshem tag nrho thiab cov txiv hmab txiv ntoo yuav puas los ntawm qhov tsaus ntuj, greasy saib blotches ntawm necrotic nqaij.

Tiv thaiv kab mob lig rau txiv lws suav

Kev huv huv yog thawj kauj ruam ntawm kev tswj cov txiv lws suav lig blight. Ntxuav tag nrho cov khib nyiab thiab cov txiv hmab txiv ntoo poob los ntawm thaj chaw vaj. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau thaj chaw sov sov uas qhov kev ncua ntev tsis zoo li tsis zoo li thiab cov kab mob lws suav lig tuaj yeem ua rau lub caij ntuj no hauv cov txiv hmab txiv ntoo poob.

Tam sim no, tsis muaj hom txiv lws suav muaj uas tiv taus cov txiv lws suav lig, yog li cov nroj tsuag yuav tsum tau tshuaj xyuas tsawg kawg ob zaug hauv ib lub lis piam. Txij li thaum cov tsos mob tshwm sim lig yuav tshwm sim thaum lub caij ntub dej, yuav tsum tau saib xyuas ntau dua thaum lub sijhawm ntawd.

Rau cov neeg ua teb hauv tsev, cov tshuaj tua kab mob uas muaj maneb, mancozeb, chlorothanolil, lossis cov tooj liab ruaj tuaj yeem pab tiv thaiv cov nroj tsuag los ntawm cov txiv lws suav lig. Kev thov rov ua dua yog tsim nyog thoob plaws lub caij cog qoob loo vim tias tus kab mob tuaj yeem tawm tsam txhua lub sijhawm. Rau cov neeg ua liaj ua teb organic, muaj qee cov khoom siv tooj liab ruaj tau pom zoo siv; txwv tsis pub, tag nrhoCov nroj tsuag muaj kab mob yuav tsum tau muab tshem tawm tam sim ntawd thiab rhuav tshem.

Txiv kab ntxwv lig tuaj yeem ua rau muaj kev puas tsuaj rau cov neeg ua teb hauv tsev thiab cov lag luam cog qoob loo zoo ib yam, tab sis nrog kev ua tib zoo saib xyuas huab cua, kev huv hauv vaj, thiab kev tshawb pom ntxov, cov neeg tua qoob loo tuaj yeem tswj tau.

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