Leaf Spot Control On Blueberry - Kho Blueberries Nrog Nplooj Spot

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

Pom ntawm nplooj tuaj yeem txhais tau ntau dua li qhov teeb meem tshuaj pleev ib ce. Muaj ntau ntau hom blueberry nplooj, feem ntau yog tshwm sim los ntawm cov kab mob sib txawv, uas tuaj yeem cuam tshuam rau cov qoob loo. Blueberries nrog nplooj nplooj feem ntau zoo li lawv raug mob nrog tshuaj tsuag los yog lawg, tab sis lwm cov cim qhia tuaj yeem pab txheeb xyuas cov kab mob fungal los ntawm kev raug mob lossis ib puag ncig. Kev tswj cov nplooj thaum ntxov ntawm blueberry nrog cov tshuaj tua kab mob tuaj yeem pab tiv thaiv cov kab mob no los ntawm kev tuav thiab ua rau defoliation thiab txo qis zog.

Hom Blueberry Leaf Spot

Blueberries nrog nplooj nplooj yog muaj nyob rau txhua lub sijhawm hauv lub caij loj hlob. Txawm hais tias tej zaum yuav muaj qee cov tsos mob ntawm cov paj, stems lossis txiv hmab txiv ntoo, feem cuam tshuam feem ntau yog nplooj. Raws li tus kab mob loj hlob tuaj, nplooj pib tuag thiab poob tawm. Xws li defoliation txo cov nroj tsuag lub peev xwm los photosynthesize. Paub txog cov tsos mob ntawm tus kab mob yog qhov tseem ceeb rau kev tsim kho cov nplooj blueberry zoo thiab tiv thaiv kab mob rau lub caij tom ntej.

Anthracnose thiab Septoria yog ob qho laj thawj tseem ceeb ntawm nplooj ntawv. Txhua tus yog cov kab mob fungal uas overwinters hauv av los yog cov khib nyiab cog thiab kis feem ntau los ntawm nag txaws. Alternariayog lwm hom kab mob fungus uas tawm tsam ntau hom nroj tsuag. Gloeocercospora nplooj nplooj kuj tseem muaj nyob rau ntawm cov qoob loo blueberry tab sis ua rau me ntsis kev puas tsuaj loj. Valdensinia yog ib yam kab mob tshiab uas ua rau cov nplooj poob thaum ntxov thiab cov nroj tsuag tsis muaj zog.

Txawm tias muaj kab mob fungal, feem ntau ntawm cov nplooj blueberry tshwm sim thaum lub caij ntub dej. Cov dej noo ua rau cov spores overwintered kom loj hlob thiab nthuav. Cov tsos mob tuaj yeem tshwm sim ntxov li peb hnub tom qab kis kab mob tab sis, feem ntau, siv sijhawm li 4 lub lis piam kom tshwm sim.

Cov kab mob feem ntau tshwm sim thaum lub caij nplooj ntoo hlav thaum sov sov thiab los nag ntau tshaj plaws thiab tawm tsam kev loj hlob tshiab tshaj plaws. Cov nplooj paub tab tsis tshua muaj kev cuam tshuam loj heev. Qhov zoo tshaj plaws nplooj chaw tswj ntawm blueberry yog ntxuav tom qab lub caij. Feem ntau cov kab mob overwinters nyob rau hauv dispelled nroj tsuag teeb meem, uas yuav tsum tau muab tshem tawm thiab puas.

Cov tsos mob ntawm Blueberries nrog nplooj Spot

Cov tsos mob tag nrho zoo sib xws hauv txhua kab mob. Kev saib ze dua tuaj yeem pab txhais tau tias hom kab mob twg cuam tshuam rau cov nroj tsuag.

• Ob qhov chaw - Cov chaw pib me me tab sis loj dua thaum lub caij ntuj sov lig. Cov chaw kis mus rau cov kiv cua classic nrog cov necrosis thib ob nyob ib ncig ntawm qhov chaw qub. Lub necrosis yog tsaus dua ntawm ib ntug ntawm qhov chaw qub.
• Anthracnose - Me liab liab flecks ntawm nplooj thiab stems. Loj xim av lesions ntawm nplooj uas nws thiaj li kis stems. Stems ntawm lub xyoo tam sim no kev loj hlob tsim cov kab mob liab ncig ntawm nplooj caws pliav uas nce mus rau qhov seem ntawm qia.
• Septoria - Qhov hnyav tshaj plawskis tau los ntawm lub Rau Hli mus txog rau lub Cuaj Hli. Me me me me dawb nrog tan rau purplish ciam teb.
• Gloeocercospora - Cov xim av loj tsaus, ncig cov kab mob ntawm nplooj nyob rau nruab nrab lub caij ntuj sov. Cov npoo ntawm qhov txhab dhau los ua qhov sib dua.
• Alternaria – Irregular to round brown or grey spots around the red ciam teb. Cov tsos mob tshwm sim thaum ntxov caij nplooj ntoos hlav tom qab txias, huab cua ntub.
• Valdensinia – Loj puag ncig tus nyuj lub qhov muag. Spots kis tau sai heev rau stems nyob rau hauv ib hnub thiab ua rau nplooj poob ntxov.

YBlueberry Leaf Spot Treatment

Xaus lub caij ntxuav yog qhov tseem ceeb. Muaj ntau ntau hom qoob loo uas tau muab yug los nrog ntau yam kab mob thiab suav nrog:

• Croatan
• Jersey
• Murphy
• Bladen
• Reveille

Fungicides yuav tsum siv rau thaj chaw uas muaj teeb meem nplooj ntoos. Daim ntawv thov ntxov raug pom zoo ua raws li kev kho mob txhua 2 lub lis piam txij thaum sau txog lub Yim Hli. Benlate thiab Captan yog ob feem ntau siv fungicides hauv blueberry ntau lawm.

Tsis txhob taug kev ncig blueberry sawv raws li ib nplooj ntawv kis mus rau qhov tsis muaj kab mob blueberry tuaj yeem kis tus kab mob. Qee qhov xwm txheej, tus kab mob tuaj yeem txav mus rau ntawm cov tshuab tsis huv, ntim khoom thiab cov cuab yeej. Disinfect txhua tus thaum koj txav ntawm tsob ntoo mus rau tsob ntoo.

Ntau tus neeg cog khoom lag luam saum lawv cov nroj tsuag tom qab sau, tshem tawm cov nplooj qub. Cov nplooj tshiab uas tshwm sim yuav txhawb nqa cov nroj tsuag thiab feem ntau tsis muaj kab mob. Kev siv cov cultivars resistant ua ke nrog fungicides thiab kev tu cev zoo tuaj yeem ua rau muaj kev kub ntxhov.txo cov kab mob nplooj thiab nws txoj kev txav ntawm tsob ntoo mus rau tsob ntoo.

Note: Cov lus pom zoo hais txog kev siv tshuaj yog rau cov ntaub ntawv xov xwm nkaus xwb. Cov npe tshwj xeeb lossis cov khoom lag luam lossis cov kev pabcuam tsis hais txog kev pom zoo. Kev tswj tshuaj yuav tsum tsuas yog siv los ua qhov chaw kawg nkaus xwb, vim tias cov txheej txheem organic muaj kev nyab xeeb dua thiab zoo ib puag ncig.