Grape Phymatotrichum fungus: Tswj paj rwb hauv paus rot ntawm txiv hmab txiv ntoo

Cov txheej txheem:

Grape Phymatotrichum fungus: Tswj paj rwb hauv paus rot ntawm txiv hmab txiv ntoo
Grape Phymatotrichum fungus: Tswj paj rwb hauv paus rot ntawm txiv hmab txiv ntoo

Video: Grape Phymatotrichum fungus: Tswj paj rwb hauv paus rot ntawm txiv hmab txiv ntoo

Video: Grape Phymatotrichum fungus: Tswj paj rwb hauv paus rot ntawm txiv hmab txiv ntoo
Video: Diseases of Strawberry: Kelly Ivors, Senior Plant Pathologist, Driscoll's 2024, Kaum ib hlis
Anonim

Kuj hu ua Texas cag rot, txiv hmab txiv ntoo paj ntoo hauv paus rot (grape phymatotrichum) yog kab mob fungal uas cuam tshuam ntau dua 2, 300 hom nroj tsuag. Cov no suav nrog:

  • cactus
  • paj rwb
  • ntxawm
  • conifers
  • shade tree

paj rwb hauv paus rot ntawm grapevines yog kev puas tsuaj rau cov neeg cog qoob loo hauv Texas thiab feem ntau ntawm sab hnub poob Tebchaws Meskas. Txiv hmab txiv ntoo phymatotrichum fungus nyob tob hauv cov av uas nws muaj sia nyob yuav luag tsis muaj hnub kawg. Hom kab mob hauv paus rot no yog qhov nyuaj heev los tswj, tab sis cov ntaub ntawv hauv qab no yuav pab tau.

Grapes with Cotton Root Rot

Grape paj rwb cag rot yog nquag nyob rau lub caij ntuj sov lub hlis thaum av kub tsawg kawg yog 80 degrees F. (27 C.) thiab huab cua kub tshaj 104 degrees F. (40 C.), feem ntau nyob rau lub yim hli ntuj. thiab lub Cuaj Hli. Nyob rau hauv cov xwm txheej no, cov fungus invas lub vines los ntawm cov hauv paus hniav thiab cov nroj tsuag tuag vim nws nqa tsis tau dej.

Cov tsos mob thaum ntxov ntawm paj rwb hauv paus rot ntawm grapevines muaj xws li yellowing me ntsis thiab pom ntawm nplooj, uas tig bronze thiab wilt sai heev. Qhov no feem ntau tshwm sim hauv ob peb lub lis piamlos ntawm thawj cov tsos mob ntawm tus kab mob. Yog tias koj tsis paub meej, rub lub vine thiab nrhiav cov kab mob fungal ntawm cov hauv paus hniav.

Tsis tas li ntawd, koj tuaj yeem pom cov pov thawj ntawm cov txiv hmab txiv ntoo phymatotrichum fungus nyob rau hauv daim ntawv ntawm tan los yog xim dawb spores lev ntawm cov av nyob ib ncig ntawm cov kab mob.

Controlling Grape Cotton Root Rot

Txog tsis ntev los no, tsis muaj kev kho mob zoo rau kev tswj cov kab mob phymatotrichum thiab cog cov kab mob tiv thaiv kab mob feem ntau yog thawj kab ntawm kev tiv thaiv. Txawm li cas los xij, ntau yam kev tawm tswv yim xws li kev sib ntxiv ntawm cov organic teeb meem kom cov av muaj peev xwm khaws tau dej thiab txo cov av pH kom tsis txhob muaj kab mob fungal loj hlob tau pab.

Kev Kho Mob Tshiab rau Grapes nrog paj rwb hauv paus rot

Fungicides tsis tau zoo vim tus kab mob nyob tob hauv av. Cov kws tshawb fawb tau tsim cov kab mob fungicide, tab sis, uas qhia tau hais tias kev cog lus rau kev tswj cov txiv hmab nrog paj rwb hauv paus rot. Cov khoom siv tshuaj hu ua flutriafol, tuaj yeem tso cai rau cov neeg cog qoob loo kom cog txiv hmab txiv ntoo hauv cov av muaj kab mob. Nws yog siv los ntawm 30 mus rau 60 hnub tom qab tawg paj. Qee zaum nws muab faib ua ob daim ntawv thov, nrog rau qhov thib ob thov tsis pub ze tshaj 45 hnub tom qab thawj zaug.

Koj lub koom haum txuas ntxiv hauv cheeb tsam tuaj yeem muab cov lus qhia tshwj xeeb txog qhov muaj ntawm cov khoom, cov npe, thiab seb nws puas tsim nyog hauv koj cheeb tsam.

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