Ua Li Cas Citrus Twig Dieback: Vim Li Cas Cov Ceg Tuag Ntawm Tsob Ntoo Citrus

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

Thaum cov txiv hmab txiv ntoo citrus loj hlob hauv tsev feem ntau yog ib qho txiaj ntsig zoo heev, qee zaum qee zaum ua yuam kev. Zoo li txhua yam nroj tsuag, citrus ntoo muaj lawv tus kheej cov kab mob, kab tsuag thiab lwm yam teeb meem. Ib qho teeb meem tshwm sim yog citrus twig dieback. Hauv tsab xov xwm no, peb yuav mus dhau qhov laj thawj vim li cas twig tuag ntawm cov ntoo citrus yuav tshwm sim.

Cim Citrus Twig Dieback?

Citrus twig dieback tuaj yeem tshwm sim los ntawm ib puag ncig ib puag ncig, kab mob lossis kab tsuag. Ib qho laj thawj yooj yim rau ib qho citrus dieback, suav nrog twig dieback, limb poob, thiab nplooj los yog txiv hmab txiv ntoo poob, yog tias cov nroj tsuag muaj kev ntxhov siab los ntawm ib yam dab tsi. Qhov no tuaj yeem yog kab tsuag kab mob, kab mob tshwm sim, hnub nyoog laus lossis kev hloov pauv ib puag ncig tam sim xws li dej nyab, dej nyab, lossis cov cag ntoo lossis cua daj cua dub. Qhov tseeb, nws yog cov nroj tsuag tiv thaiv lub cev kom nws thiaj li muaj sia nyob txawm tias nws raug hem.

Nyob hauv cov ntoo citrus qub uas tsis tau khaws cia kom zoo, nws tsis yog ib qho yooj yim rau cov ceg saum toj kom ntxoov ntxoo cov ceg qis. Qhov no tuaj yeem ua rau qis qis kom muaj teeb meem xws li citrus limb dieback, nplooj poob, thiab lwm yam. Shading tawm lossis overcrowding tuaj yeem tsim qhov chaw zoo tagnrho raupests thiab kab mob.

Txoj kev txiav cov ntoo citrus txhua xyoo tuaj yeem pab tiv thaiv qhov no los ntawm kev qhib tsob ntoo ntoo kom muaj hnub ci ntau rau hauv thiab txhim kho huab cua. Cov neeg tuag, puas, muaj kab mob, neeg coob coob lossis hla cov ceg tawv yuav tsum tau txiav tawm txhua xyoo txhawm rau txhim kho citrus noj qab haus huv thiab muaj zog.

Lwm Yam Ua Rau Ceg Tuag Ntawm Tsob Ntoo Citrus

Nyob rau ob peb xyoos dhau los, cov neeg cog txiv kab ntxwv hauv California tau ntsib qhov tshwm sim loj ntawm citrus twig tuag. Raws li cov neeg siv khoom, tej zaum koj tau pom qhov nce ntawm tus nqi ntawm qee cov txiv hmab txiv ntoo citrus. Qhov kev tshwm sim no tau cuam tshuam loj heev rau cov txiaj ntsig ntawm cov neeg cog citrus. Cov kev tshawb fawb tsis ntev los no tau xaus lus tias qhov twig tuag ntawm cov nroj tsuag citrus yog tshwm sim los ntawm tus kab mob Colletotrichum.

Cov tsos mob ntawm tus kab mob no suav nrog chlorotic lossis necrotic foliage, thinning ntawm citrus crowns, cov kua qaub ntau dhau thiab twig thiab tua tuag. Hauv cov xwm txheej hnyav, cov ceg ceg loj yuav tuag. Txawm hais tias qhov no yog kab mob, nws yuav kis tau los ntawm kab kab.

Cov kauj ruam tau coj los tswj tus kab mob hauv cov txiv kab ntxwv txiv kab ntxwv suav nrog kev tswj kab tsuag thiab siv cov tshuaj tua kab mob. Tus kab mob no tseem tab tom kawm los txiav txim siab txog kev tswj hwm kev tswj hwm zoo tshaj plaws. "Qhov mob toxicity ntawm fungicides rau tib neeg feem ntau suav hais tias yog qis, tab sis fungicides tuaj yeem ua rau tawv nqaij thiab qhov muag. Kev kis tus kab mob mus rau qis dua cov tshuaj fungicides tuaj yeem ua rau muaj kev phom sij rau kev noj qab haus huv. " extension.psu.edu

Note: Cov lus pom zoo hais txog kev siv tshuaj yog rau cov ntaub ntawv xov xwm nkaus xwb. Cov npe tshwj xeeb lossis kev lag luamcov khoom lossis 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.