Pob Kws Brown Spot: Kawm Txog Physoderma Brown Spot Control

Cov txheej txheem:

Pob Kws Brown Spot: Kawm Txog Physoderma Brown Spot Control
Pob Kws Brown Spot: Kawm Txog Physoderma Brown Spot Control

Video: Pob Kws Brown Spot: Kawm Txog Physoderma Brown Spot Control

Video: Pob Kws Brown Spot: Kawm Txog Physoderma Brown Spot Control
Video: Yuav tawm ntawm txoj kev txom nyem tau li cas? 2024, Kaum ib hlis
Anonim

Physoderma xim av ntawm pob kws yog cov kab mob fungal uas yuav ua rau koj cov nplooj nplooj tuaj yeem daj mus rau xim av. Nws yog nyiam los ntawm sov, ntub dej thiab, nyob rau hauv Midwest qhov twg feem ntau cov pob kws yog zus, nws tsuas yog ib qho teeb meem me. Yuav tsum paub txog tus kab mob no, tshwj xeeb tshaj yog tias koj nyob qhov chaw sov dua thiab muaj av noo ntau, xws li cov xeev sab qab teb sab hnub tuaj ntawm Teb Chaws Asmeskas

Pob kws Brown Spot yog dab tsi?

Qhov no yog kab mob fungal tshwm sim los ntawm Physoderma maydis. Nws yog ib qho kab mob txaus ntshai, txawm tias nws tuaj yeem ua rau puas tsuaj, vim nws yog ib qho ntawm ob peb uas tsim cov zoospores. Cov no yog cov kab mob fungal uas muaj flagella, lossis tails, thiab tuaj yeem ua luam dej nyob ib puag ncig hauv dej uas pas dej hauv pob kws pob kws.

Cov xwm txheej uas nyiam tus kab mob yog sov thiab ntub, tshwj xeeb tshaj yog thaum cov dej sib sau ua ke. Qhov no yog qhov tso cai rau cov zoospores kis mus rau cov ntaub so ntswg noj qab haus huv thiab ua rau muaj kab mob thiab mob.

Cov cim ntawm pob kws nrog Brown Spot

Cov tsos mob ntawm pob kws xim av qhov chaw kab mob yog tsim ntawm me me, puag ncig los yog oval lesions uas tej zaum yuav daj, xim av, los yog xim av xim av. Lawv sib sau ua ke sai thiab tsim cov kab hla ntawm nplooj. Koj kuj tuaj yeem pom cov kab mob ntawmcov stalks, husks, thiab sheaths ntawm koj cov pob kws.

Cov paib no tuaj yeem ua tau zoo ib yam li cov kab mob xeb, yog li kuj tseem nrhiav cov kab mob midrib uas yog xim av tsaus rau xim dub kom pom cov xim av. Cov tsos mob feem ntau yuav tshwm sim ua ntej koj pob kws tau nce mus rau theem tassel.

Physoderma Brown Spot Control

Muaj qee cov tshuaj fungicides uas tau sau rau physoderma xim av, tab sis kev ua tau zoo yuav tsis zoo. Nws yog qhov zoo dua los tswj tus kab mob no nrog kev coj noj coj ua thiab kev tiv thaiv. Yog tias tus kab mob tau ua teeb meem hauv koj cheeb tsam lossis cheeb tsam, sim pib nrog ntau hom pob kws resistant.

Kab mob cov pob kws nyob hauv cov av thiab txhawb kev rov kis kab mob, yog li ntxuav cov khib nyiab thaum kawg ntawm txhua lub caij cog qoob loo lossis xyaum tillage zoo. Tig pob kws mus rau ntau qhov chaw kom tsis txhob muaj cov kab mob fungus hauv ib qho chaw. Yog tias koj ua tau, tsis txhob cog pob kws hauv thaj chaw uas muaj cov av noo siab los yog cov dej ntws tawm.

Pom zoo: