2024 Tus sau: Chloe Blomfield | [email protected]. Kawg hloov kho: 2023-12-15 23:55
Downy mildew ntawm Roses, uas tseem hu ua Peronospora sparsa, yog ib qho teeb meem rau ntau tus neeg cog paj. Roses cuam tshuam los ntawm rose downy mildew yuav plam kev zoo nkauj thiab lub zog.
Cov tsos mob ntawm Downy Mildew ntawm Roses
Cov tsos mob ntawm nplooj ntawm Roses nrog cov kab mob me me yog lub teeb ntsuab mus rau xim daj, hu ua "roj me ntsis" vim tias lawv tuaj yeem pom muaj roj. Downy mildew ntawm Roses zoo li tawm tsam qhov kev loj hlob ntawm nplooj ntoo tshiab ua ntej thiab ua haujlwm nws txoj hauv kev los ntawm Rose Bush. Koj tseem tuaj yeem pom qhov reddening ntawm qia lossis sepals ntawm lub hav txwv yeem.
Tshuaj Roses nrog Downy Mildew
Rose downy mildew tuaj yeem yog tus neeg siv khoom tawv heev kom tshem tawm thaum nws pib. Thaum siv cov tshuaj tua kab mob kom tau txais kev tswj hwm, nws yog qhov zoo tshaj los hloov cov tshuaj fungicides siv ntawm txhua qhov tshuaj tsuag siv cov tshuaj fungicide nrog ntau hom kev ua. Cov tshuaj fungicides uas muaj Metalaxyl zoo li muab qee qhov kev tswj hwm.
Oospores ntawm rose downy mildew tuaj yeem yog cua lossis dej yug los, yog li kev kis kab mob ntawm lwm cov ntoo sawv hauv tib lub txaj yog qhov muaj feem ntau. Txau tag nrho koj cov paj ntoo los ntawm thawj qhov pib ntawm tus kab mob thiab txuas ntxiv rau yam tsawg kawg yog plaub mus rau tsib tshuaj tsuag xya mus rau kaum hnub sib nrug yuav tsum tsis txhob muaj kev sib kis ntawm cov kab mob me me. Ntawm no ib yam nkaus, kev tiv thaiv kab mob fungicidal txau siv ntaunqi.
Downy mildew on Roses yuav overwinter nyob rau hauv Rose bushes. Rau cov neeg siv khoom hnyav no, qhov kev kho zoo tshaj plaws yog kev tiv thaiv tiag tiag. Kev tu lub caij nplooj ntoo hlav zoo ntawm tag nrho cov nplooj qub yog qhov tseem ceeb hauv kev tiv thaiv tus kab mob no.
Nrog cov kab mob me me rau ntawm cov ntoo sawv thiab txhua tus kab mob sawv, tswj kom muaj huab cua zoo los ntawm thiab ib puag ncig koj cov ntoo sawv yuav pab tiv thaiv tus kab mob no. Tsis txhob cia lawv dhau los lossis nruj nrog nplooj. Tshiab cane loj hlob thoob plaws hauv nruab nrab ntawm Rose Bush tuaj yeem ua nws tus yeeb ncuab phem tshaj plaws hauv kev tawm tsam cov kab mob. Tseeb tiag, ib tsob ntoo sawv nrog cov nplooj puv thiab ntim nrog cov paj yog qhov zoo siab dawb huv los saib; Txawm li cas los xij, koj tuaj yeem tau txais qhov zoo nkauj zoo ib yam nrog tsuas yog me ntsis nyias tawm uas yuav tso cai rau huab cua xav tau.
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