Dahlia Spotted Wilt Virus - Tswj Dahlias Nrog Spotted Wilt

Cov txheej txheem:

Dahlia Spotted Wilt Virus - Tswj Dahlias Nrog Spotted Wilt
Dahlia Spotted Wilt Virus - Tswj Dahlias Nrog Spotted Wilt

Video: Dahlia Spotted Wilt Virus - Tswj Dahlias Nrog Spotted Wilt

Video: Dahlia Spotted Wilt Virus - Tswj Dahlias Nrog Spotted Wilt
Video: Organic Gardening Pest and Disease Control + Dahlia TSWV 🐛🦋 2024, Kaum ib hlis
Anonim

Tus kab mob pom wilt nyob rau hauv dahlias cuam tshuam ntau tshaj 200 hom zaub thiab ornamental nroj tsuag thoob ntiaj teb. Tus kab mob tsuas kis tau los ntawm thrips. Thrip larvae kis tus kab mob los ntawm kev pub rau cov nroj tsuag, zoo li dahlias nrog cov kab mob wilt. Thaum cov thrips loj tuaj, lawv lub peev xwm ya tau kis tus kab mob mus rau cov nroj tsuag noj qab haus huv.

Cov tsos mob ntawm Dahlia Wilt Disease

Keeb kwm tshawb pom hauv cov txiv lws suav, tus kab mob no tau raug hu ua txiv lws suav pom wilt virus (TSWV). Hauv hom txiv lws suav, tus kab mob no ua rau wilting ntawm nplooj thiab daj me ntsis ntawm cov txiv hmab txiv ntoo.

Lub npe ntawm tus kab mob no tuaj yeem dag, txawm li cas los xij, raws li cov neeg ua teb tsis zoo yuav pom tias lawv cov dahlias wilting. Lub xub ntiag ntawm thrips ntawm cov nroj tsuag muaj kab mob, ua ke nrog cov tsos mob tshwm sim, yog qhov qhia tau zoo dua rau kev xav tias kab mob dahlia wilt. Vim lawv qhov me me, thrips yuav nyuaj rau pom. Qhov ua kom yuam kev yog coj mus rhaub dahlia hla ib daim ntawv dawb lossis daim ntaub. Cov thrips yuav tshwm raws li qhov tsaus nti.

Cov tsos mob feem ntau ntawm tus kab mob los ntawm dahlia pom tus kab mob wilt suav nrog:

  • Yellow spotting or mottling of nplooj
  • Necrotic nplhaib me ntsis lossis kab ntawm nplooj
  • muag nplooj
  • Deformed lossis stunted kev loj hlob ntawm paj thiab buds
  • Paj nthuav tawm xim tawg (muaj qhov pom streaked)
  • Nroj poob (feem ntau ntawm cov tub ntxhais hluas dahlias)

Kev kuaj pom tseeb ntawm tus kab mob pom wilt hauv dahlias yog qhov nyuaj vim tias cov tsos mob ua rau lwm yam kab mob thiab cov xwm txheej, suav nrog cov khoom noj tsis txaus. Tsis tas li ntawd, dahlias nrog pom wilt tej zaum yuav asymptomatic lossis qhia ob peb yam kab mob. Tib txoj hauv kev tiag tiag txhawm rau txheeb xyuas tus kab mob dahlia pom wilt yog los ntawm kev kuaj cov ntaub so ntswg nrog kev ntsuas enzyme-txuas immunosorbent assay lossis ELISA test. Koj lub chaw haujlwm txuas ntxiv hauv zos tuaj yeem pab nrog qhov no.

Controlling Spotted Wilt Virus in Dahlias

Zoo li feem ntau cov kab mob kis hauv cov nroj tsuag, tsis muaj kev kho rau kab mob dahlia wilt. Txoj haujlwm zoo tshaj plaws ntawm kev ua yog tshem tawm cov nroj tsuag uas kis tus kab mob dahlia pom wilt.

Cov tswv tsev ntsuab thiab cov neeg ua vaj hauv tsev tuaj yeem tiv thaiv kev kis tus kab mob dahlia ntxiv los ntawm kev ua raws li cov kev tswj hwm no:

  • Nyob hauv lub tsev cog khoom, siv cov nplaum nplaum daj kom ntes cov thrips thiab saib xyuas lawv cov pejxeem.
  • Ua thrip larvae tswj qhov kev pab cuam raws li thrip pejxeem ntom.
  • Cov tsev cog khoom qhib qhib nrog kev tshuaj ntsuam xyuas zoo kom tiv thaiv cov neeg laus thrips nkag mus.
  • Tsis txhob cog zaub zaub thiab cog ntoo hauv tib lub tsev cog khoom.
  • Tsis txhob nthuav tawm cov nroj tsuag kis tus kab mob txawm tias feem ntawm cov nroj tsuag zoo li noj qab haus huv. (Nws tseem tuaj yeem khaws tus kab mob no.)
  • Tshem tawm cov nroj tsuag uas tuaj yeem ua tus tswv tsevnroj tsuag.
  • Tam sim cov nroj tsuag muaj kab mob dahlia wilt.

Pom zoo: