Nrog lawv ntau hom thiab ntau yam sib txawv, dogwoods yog ib qho ntawm cov ntoo ornamental nrov tshaj plaws rau lub vaj. Yog tias cov ceg tuag tau pom ntawm Cornus hauv nruab nrab ntawm cov nroj tsuag, nws yog lub sijhawm siab los ua. Peb yuav qhia koj tias yuav ua li cas.
Dab tsi yog vim li cas cov ceg ntoo tuag?
Txawm hais tias dogwood tiv taus kab mob, nws muaj peev xwm tua, twigs thiab nws thiaj li tag nrho cov ceg tuag. Yog vim li cas rau qhov no yogAnthracnose, uas yog lub npe hu ua nplooj xim av. Thawj lub cim ceeb toom yog cov nplooj ntawv xim av thiab cov nplooj nplooj.
Kuv tuaj yeem paub tus mob anthracnose li cas?
Yog tias koj txiav rov qab koj cov paj dogwood lossis lwm yam ntawm dogwood nyob rau lub caij nplooj ntoo hlav, koj yuav pom cov tua tuag - tsis muaj laj thawj txhawj xeeb.
Tab sis yog tias cov ceg tuag tshwm tom qab lub caij ntuj sov los nag thiab tuag noNecrosisYog tias cov nplooj xim av twb yog ib qho cim ntawm kev puas tsuaj, kev ua haujlwm ceev yog qhov tseem ceeb. Cov dogwood cuam tshuam los ntawm anthracnose twv yuav raug hu xav tau radical pruning. Zoo paub: Nplooj browning yog kab mob fungal thiab yog tshwm sim los ntawm fungus Discula destructiva.
Cov ceg tuag puas muaj teeb meem rau tus dogwood?
Ntxhais ceg tuagmob siab heevrau tus txiv dev. Yog tias tsis kho, kab mob fungal ib txwm ua rautuag ntawm cov nroj tsuag cuam tshuam. Kev ua ceev ceev hauv daim ntawv ntawm radical pruning yog ib qho tseem ceeb heev.
Yuav ua li cas tshem cov ceg ntoo?
Aradical pruningthaum lub caij nplooj zeeg yog tib txoj kev ntsuas kom txuag tau tus kab mob dogwood los ntawm kev tuag tag.
Txhua qhov chaw tuag ntawm cov nroj tsuag yuav tsum tau muab tshem tawm. raug tshem tawm. Lub pruning yuav tsum nkag mus rau hauv cov ntoo noj qab haus huv.
Nco ntsoov tias koj muaj cov cuab yeej ntse txiav uas yog tshuaj tua kab mob ua ntej pruningYog tias qhov txiav loj dua tshwm sim thaum lub sij hawm radical pruning, cov no yog kho zoo tshaj plaws. nrog kev kho mob tshwj xeeb cov khoom kaw qhov txhab. Tseem ceeb: Noj qab nyob zoo dogwoods yeej tsis xav tau radical pruning!
Puas tshuaj tshuaj pab tiv thaiv cov ceg tuag?
Fungicides tsis muaj txiaj ntsig rau cov ceg tuag vim cov kab mob fungal tshwm sim los ntawm fungus Discula destructiva. Lawv pab tsis tau tus kab mob dogwood.
Yuav ua li cas tiv thaiv dogwood ceg kom tuag?
Vim yog vim li cas nplooj nplooj xim av feem ntau yog lub caij ntuj nag los nag heev, nws tsuas muaj ob peb txoj hauv kev los tiv thaiv cov ceg ntoo tuag. Qhov no suav nrog kev ntsuas saib xyuas hauv qab no:
- Watering tsuas yog nyob rau hauv qhuav heev tej yam kev mobthaum lub hauv paus pob yog nyob rau hauv txaus ntshai ntawm qhuav tawm. Txwv tsis pub, dogwoods (tshwj tsis yog: cov nroj tsuag hluas hauv thawj ob peb xyoos) tsis tas yuav tsum tau ywg dej tsis tu ncua.
- waterloggingtwv yuav raug huavoid.
- Tsis txhob fertilize ntau dhau thiab, tseem ceeb tshaj, tsuas yog siv nitrogen-nplua nuj chiv nyob rau hauv tsawg heev.
Tip
Lwm cov kab mob muaj cov tsos mob sib txawv
Yog tias cov ceg tuag lawm, qhov kev kuaj mob ntawm cov nplooj browning yog yuav luag txhua yam. Powdery mildew, uas kuj yog ib qho ntawm cov kab mob ntawm dogwood, yog tus cwj pwm los ntawm greasy, dawb txheej ntawm nplooj thiab qee zaum ntawm cov tua. Mealybugs tuaj yeem lees paub los ntawm qhov tseeb tias tag nrho cov nroj tsuag yog nplaum thiab nyiam cov ntsaum zoo li yog los ntawm khawv koob.
