Dab tsi yog Sclerotium Blight - Pom Thiab Kho Cov Mob Sclerotium Fig

2024 Tus sau: Chloe Blomfield | [email protected]. Kawg hloov kho: 2023-12-15 23:55

kab mob fungal yog tej zaum cov teeb meem tshwm sim hauv ntau hom nroj tsuag, sab hauv tsev thiab sab nraum zoov. Figs nrog rau yav qab teb blight muaj cov fungus Sclerotium rolfsii. Nws stems los ntawm unsanitary tej yam kev mob nyob ib ncig ntawm lub hauv paus ntawm tsob ntoo. Yav qab teb blight ntawm fig ntoo tsim cov kab mob fungal feem ntau nyob ib ncig ntawm lub pob tw. Raws li daim duab sclerotium blight info, tsis muaj kev kho rau tus kab mob, tab sis koj tuaj yeem tiv thaiv tau yooj yim.

Dab tsi yog Sclerotium Blight?

Fig ntoo tau cog rau lawv cov nplooj zoo nkauj, ci ntsa iab thiab lawv cov txiv hmab txiv ntoo qab, qab zib. Cov ntoo gnarled no yog qhov hloov tau yooj yim tab sis tuaj yeem raug tua rau qee yam kab tsuag thiab kab mob. Ib tug ntawm cov no, yav qab teb blight ntawm fig ntoo, yog li ntawd loj heev nws yuav kawg ua rau demise ntawm cov nroj tsuag. Cov fungus muaj nyob rau hauv cov av thiab tuaj yeem kis tau rau cov hauv paus hniav thiab lub cev ntawm tsob ntoo fig.

Muaj ntau dua 500 tus tswv tsev cog ntoo ntawm Sclerotium rolfsii. Tus kab mob no feem ntau tshwm sim hauv cov cheeb tsam sov tab sis tuaj yeem tshwm sim thoob ntiaj teb. Sclerotium fig cov tsos mob tshwm sim thawj zaug raws li paj rwb, dawb loj hlob nyob ib ncig ntawm lub hauv paus ntawm lub cev. Cov txiv hmab txiv ntoo me me, tawv, daj-xim av tuaj yeem pom. Cov no hu ua sclerotia thiab pib tawm dawb, darkening dualub sij hawm.

Cov nplooj kuj yuav wilt thiab tuaj yeem pom cov cim ntawm cov kab mob. Cov fungus yuav nkag mus rau hauv xylem thiab phloem thiab tseem ceeb girdle tsob ntoo, txwv tsis pub cov khoom noj thiab dej. Raws li daim duab sclerotium blight info, cov nroj tsuag yuav maj mam tshaib plab kom tuag.

Tshuaj Southern Blight on Fig Trees

Sclerotium rolfsii muaj nyob rau hauv teb thiab orchard qoob loo, ornamental nroj tsuag, thiab txawm turf. Nws feem ntau yog kab mob ntawm cov nroj tsuag herbaceous, tab sis qee zaus, xws li Ficus, tuaj yeem kis tau cov ntoo stemmed. Cov fungus nyob hauv av thiab overwinters hauv cov khib nyiab pov tseg, xws li nplooj poob.

Cov sclerotia tuaj yeem txav ntawm tsob ntoo mus rau cog los ntawm cua, txaws, lossis siv tshuab. Thaum lub caij nplooj ntoo hlav lig, sclerotia tsim hyphae, uas nkag mus rau hauv cov ntaub so ntswg. Lub mycelial lev (dawb, paj rwb loj hlob) cov ntaub ntawv nyob rau hauv thiab ib ncig ntawm cov nroj tsuag thiab maj mam tua nws. Kub yuav tsum sov thiab tej yam kev mob moist los yog humid kom kis figs nrog rau yav qab teb blight.

Thaum cov tsos mob sclerotium pom tseeb, tsis muaj dab tsi uas koj tuaj yeem ua tau thiab pom zoo kom tsob ntoo tshem tawm thiab rhuav tshem. Qhov no yuav zoo li hnyav heev, tab sis tsob ntoo yuav tuag lawm thiab qhov pom ntawm cov fungus txhais tau tias nws tuaj yeem tsim cov sclerotia uas yuav kis tau rau lwm cov nroj tsuag nyob ze.

Cov sclerotia tuaj yeem nyob hauv av tau 3 txog 4 xyoos, uas txhais tau hais tias nws tsis tsim nyog cog cov nroj tsuag uas raug mob rau hauv qhov chaw rau qee lub sijhawm. Av fumigants thiab solarization tej zaum yuav muaj qee yam cuam tshuam rau tua cov fungus. Sib sib zog nqus plowing, txiv qaub kev kho mob, thiab tshem tawm cov qub nroj tsuagcov ntaub ntawv tseem yog txoj hauv kev zoo los tawm tsam cov kab mob.