Kev tiv thaiv thiab tswj hwm Curvularia nplooj blight hauv cov nyom

Kev faib tawm thiab kev puas tsuaj ntawm Curvularia nplooj blight
Vim yog kev tswj hwm tsis saib xyuas thiab lwm yam laj thawj, cov nyom loj hlob hauv qhov chaw tsis zoo thiab nyuaj rau muaj kab mob. Ntxiv raukis kab mob rau cov nyomntawm tsev neeg Artemisia, Curvularia yuav kis kab mob rau cov nyom ntawm tsev neeg Pooideae, xws li bluegrass, meadow bluegrass, fine-leaved fescue, Canada bluegrass, ryegrass, thiab lwm yam.

Kev puas tsuaj: Cov nyom uas muaj kab mob tsis muaj zog, nyias nyias, thiab muaj cov nyom tuag tsis sib xws. Cov kab nyom sab hauv cov nyom tuag yog nyias thiab luv luv, thiab zoo li xim grey thiab tuag. Cov nplooj uas muaj kab mob ntawm cov nyom bluegrass thiab cov fescue nplooj zoo hloov ntawm daj mus rau xim av los ntawm qhov kawg mus rau hauv paus, thiab tom qab ntawd mus rau xim grey, kom txog thaum tag nrho cov nplooj tuag. Cov kab mob sib txawv ua rau muaj cov tsos mob sib txawv. Piv txwv li, thaum Curvularia crescentus kis rau cov nyom bluegrass, cov qhov txhab ntawm cov nplooj uas muaj kab mob yog oval lossis fusiform, nruab nrab ntawm cov qhov txhab yog grey, ib puag ncig yog xim av, thiab muaj cov halos daj sab nraud. Thaum cov nplooj npog nrog cov qhov txhab, lawv tuag.
Cov xwm txheej rau Curvularia nplooj blight

Kub: Nws yooj yim tshwm sim thaum qhov kub siab txog li 30 degrees hauv qhov chaw noo noo siab.

Cov khoom uas kis tau kab mob: Kis tau rau cov nyom uas muaj huab cua kub heev lossis kev loj hlob tsis zoo vim huab cua kub heev. Cov nyom, ntau yam qoob loo, thiab cov nyom uas tsis zoo. Cov nyom uas tsis zoo cog, tsis zoo tswj, thiab tsis zoo cog. Nws tuaj yeem tshwm sim hauv cov chaw noo noo thiab cov chiv nitrogen ntau dhau.

Txoj kev sib kis: Kis tau los ntawm cua thiab nag.

Kev tiv thaiv thiab kho mob ntawm Curvularia nplooj blight

Cov noob: Xaiv cov noob uas tiv taus kab mob zoo thiab cov nyom uas tsis muaj kab mob, thiab sib tov ntau hom noob nyom sib txawv.

Kev cog noob thiab fertilizationThaum tseb noob, npog av kom zoo, ua tib zoo saib xyuas kev tswj cov noob, siv cov chiv nitrogen kom tsim nyog, tsis txhob siv ntau dhau thaum lub caij nplooj ntoo hlav thiab lub caij ntuj sov nruab nrab, thiab ntxiv cov chiv phosphorus thiab potassium.

Kev ywg dej: Yuav tsum ywg dej thaum sawv ntxov, tsis txhob ywg dej thaum yav tsaus ntuj, ywg dej kom tob thiab kom huv si, txo kev ywg dej ntau zaus, thiab tsis txhob muaj dej ntau dhau rau ntawm cov nyom.

Kev Txiav Txiav: Ua tib zoo saib qhov siab ntawm kev txiav, qhov tsawg kawg nkaus yog 5 txog 6 cm.

Ib puag ncig: Tshem tawm cov nplooj uas muaj kab mob thiab cov nyom tuag tom qab txiav, thiab ntxuav cov nyom tuag ntau zaus.
Kev kho mob rau kab mob nplooj Curvularia

Thaum tseb noob, sib tov cov noob nrog rau cov hmoov triadimefon uas ntub tau lossis 50% thiram uas ntub tau kom txaus. Tshuaj tua kab mob rau ntawm cov nyom kom raws sijhawm kom tiv thaiv thiab tswj tau thaum ntxov ntawm tus kab mob.