Tshuaj tua kab mobyogtshuaj ua liaj ua tebsiv los tswj lossis tshem tawm cov nroj tsuag tsis xav tau (cov nroj tsuag). Cov tshuaj tua kab mob tuaj yeem siv rau hauv kev ua liaj ua teb, horticulture, thiab kev tsim kho kom zoo nkauj kom txo tau kev sib tw ntawm cov nroj tsuag thiab cov qoob loo rau cov as-ham, lub teeb, thiab qhov chaw los ntawm inhibiting lawv txoj kev loj hlob. Nyob ntawm lawv cov kev siv thiab cov txheej txheem ntawm kev ua, cov tshuaj tua kab tuaj yeem raug cais raws li kev xaiv, tsis xaiv, ua ntej tshwm sim, tom qab tshwm sim,tiv taujthiabsystemic herbicides.
Hom tshuaj tua kab mob twg muaj?
Raws li kev xaiv
Selective Herbicides
Selective herbicides yog tsim los tsom rau cov nroj tsuag tshwj xeeb thaum tawm hauv cov qoob loo uas xav tau tsis raug mob. Cov no feem ntau siv rau hauv kev ua liaj ua teb los tswj cov nroj tsuag yam tsis muaj kev puas tsuaj rau cov qoob loo.
Kev siv tsim nyog:
Cov tshuaj herbicides xaiv yog qhov zoo tagnrho rau cov xwm txheej uas cov nroj tsuag tshwj xeeb yuav tsum tau tswj hwm yam tsis muaj kev puas tsuaj rau cov nroj tsuag xav tau. Lawv feem ntau siv rau:
Cov qoob loo: tiv thaiv cov qoob loo xws li pob kws, nplej thiab taum pauv los ntawm cov nplooj dav dav.
Lawns thiab turf: tshem tawm cov nroj tsuag xws li dandelions thiab clover yam tsis muaj kev puas tsuaj nyom.
Ornamental vaj: tswj cov nroj tsuag ntawm paj thiab shrubs.
Cov khoom pom zoo:
2,4-D
Weed Control Range: Dandelions, clover, chickweed, thiab lwm yam broadleaf weeds.
Qhov zoo: Siv tau zoo tiv thaiv ntau yam ntawm cov nroj tsuag broadleaf, tsis ua mob rau cov nyom nyom, pom cov txiaj ntsig hauv ib teev.
Nta: Yooj yim rau kev thov, kev ua haujlwm, kev nqus sai thiab pom kev cuam tshuam.
48% SL
Lwm cov formulations: 98% TC; 70% WDG
Weed Control Range: Broadleaf weeds nrog rau bindweed, dandelions, thiab thistles.
Cov txiaj ntsig zoo: Kev tswj xyuas zoo ntawm cov nroj tsuag broadleaf tsis tu ncua, tuaj yeem siv rau hauv cov qoob loo nyom thiab pastures.
Nta: Systemic herbicide, txav thoob plaws hauv cov nroj tsuag, kev tswj kav ntev.
Tsis-Selective Herbicides
Cov tshuaj tua kab mob tsis xaiv yog cov tshuaj tua kab mob dav dav uas tua cov nroj tsuag uas lawv tau ntsib nrog. Cov no yog siv rau kev tshem tawm thaj chaw uas tsis muaj cov nroj tsuag loj hlob xav tau.
Kev siv tsim nyog:
Cov tshuaj tua kab mob uas tsis yog xaiv tau yog qhov zoo tshaj plaws rau cov cheeb tsam uas xav tau kev tswj cov nroj tsuag kom tiav. Lawv haum rau:
Av clearing: ua ntej kev tsim kho lossis cog.
Cov cheeb tsam muaj kev lag luam: nyob ib ncig ntawm cov chaw tsim khoom, cov kev tsheb ciav hlau thiab kev tsheb ciav hlau qhov twg txhua cov nroj tsuag yuav tsum tau muab tshem tawm.
Txoj kev thiab kev tsav tsheb: tiv thaiv kom tsis txhob muaj cov nroj tsuag loj hlob.
Cov khoom pom zoo:
Glyphosate 480g / L SL
Lwm cov qauv: 360g / l SL, 540g / l SL, 75.7% WDG
Weed Control Range:Txhua xyoothiabperennialnyom thiab broadleaf weeds, sedges, thiab woody nroj tsuag.
Qhov zoo: Ua tau zoo rau tag nrho cov nroj tsuag tswj, kev ua haujlwm ua kom tiav kev tshem tawm.
Nta: Absorbed los ntawm foliage, translocated rau cov hauv paus hniav, ntau yam formulations (npaj-rau-siv, concentrates).
Paraquat 20% SL
Lwm cov qauv: 240g / L EC, 276g / L SL
Weed Control Range: Dav spectrum, nrog rau cov nyom txhua xyoo, cov nplooj dav dav, thiab cov nroj tsuag dej.
Qhov zoo: ceev-ua yeeb yam, tsis xaiv, ua haujlwm zoo hauv cov cheeb tsam tsis muaj qoob loo.
Nta: Hu rau tshuaj tua kab mob, yuav tsum tau ceev faj tuav vim muaj toxicity siab, tshwm sim tam sim ntawd.
Raws li Lub Sijhawm Kev Thov
Pre-Emergent Herbicides
Pre-emergent herbicides yog siv ua ntej cov nroj tsuag germinate. Lawv tsim cov tshuaj tiv thaiv kab mob hauv cov av uas tiv thaiv cov noob ntoo los ntawm sprouting.
Kev siv tsim nyog:
Pre-emergence herbicides yog qhov zoo tshaj plaws rau kev tiv thaiv cov nroj tsuag los ntawm germinating thiab feem ntau siv rau hauv:
Lawns thiab vaj: kom tsis txhob cov noob nroj tsuag germinating nyob rau lub caij nplooj ntoos hlav.
Ua liaj ua teb: txo cov nyom sib tw ua ntej cog qoob loo.
Ornamental paj txaj: tswj kom huv si, tsis muaj nroj tsuag.
Cov khoom pom zoo:
Pendimethalin 33% EC
Lwm cov qauv: 34% EC, 330G / L EC, 20% SC, 35% SC, 40SC, 95% TC, 97% TC, 98% TC
Weed Control Range: Cov nyom txhua xyoo thiab cov nplooj dav dav xws li crabgrass, foxtail, thiab goosegrass.
Qhov zoo: Kev tswj kav ntev ua ntej thaum muaj xwm txheej ceev, txo cov nyom siab, nyab xeeb rau ntau yam qoob loo thiab ornamentals.
Nta: dej-raws li formulation, yooj yim rau kev thov, cov qoob loo raug mob tsawg heev.
Trifluralin
Weed Control Range: Muaj ntau hom nroj tsuag txhua xyoo xws li barnyardgrass, chickweed, thiab lambsquarters.
Qhov zoo: Kev tswj cov nroj tsuag ua ntej tshwm sim zoo, haum rau cov zaub vaj thiab paj txaj.
Nta: Av-incorporated herbicide, muab tshuaj tiv thaiv, kev ua haujlwm ntev ntev.
Tom qab Emergent Herbicides
Cov tshuaj tua kab mob tom qab tshwm sim yog siv tom qab cov nroj tsuag tau tshwm sim. Cov tshuaj tua kab mob no muaj txiaj ntsig zoo rau kev tswj cov nroj tsuag nquag.
Kev siv tsim nyog:
Cov tshuaj tua kab mob tom qab tshwm sim yog siv los tua cov nroj tsuag uas tau tshwm sim thiab nquag loj hlob. Lawv haum rau:
Cov qoob loo: tswj cov nroj tsuag uas tshwm sim tom qab cov qoob loo loj hlob.
Lawns: kho cov nroj tsuag uas tau tshwm sim hauv cov nyom.
Ornamental vaj: rau kev kho mob ntawm cov nroj tsuag ntawm paj thiab shrubs.
Cov khoom pom zoo:
Clethodim 24% EC
Lwm cov formulations: Clethodim 48% EC
Weed Control Range: Txhua xyoo thiab perennial nyom nyom xws li foxtail, johnsongrass, thiab barnyardgrass.
Qhov zoo: Kev tswj hwm zoo ntawm hom nyom, muaj kev nyab xeeb rau cov qoob loo broadleaf, tau txais txiaj ntsig sai.
Nta: Systemic herbicide, absorbed los ntawm foliage, translocated thoob plaws hauv cov nroj tsuag.
Raws li Hom Kev Ua Haujlwm
Hu rau Herbicides
Hu rau tshuaj tua kab mob tsuas yog tua cov nroj tsuag uas lawv kov. Lawv ua haujlwm sai thiab feem ntau yog siv los tswj cov nroj tsuag txhua xyoo.
Kev siv tsim nyog:
Tiv tauj cov tshuaj tua kab mob yog qhia kom ceev, tswj cov nroj tsuag ib ntus. Lawv haum rau:
Kev kho mob hauv cheeb tsam: tsuas yog thaj chaw tshwj xeeb lossis ib tus neeg cov nroj tsuag yuav tsum tau kho.
Agricultural teb: rau ceev ceev ntawm cov nroj tsuag txhua xyoo.
Dej ib puag ncig: tswj cov nroj tsuag hauv dej.
Cov khoom pom zoo:
Diquat 15% SL
Lwm cov formulations: Diquat 20% SL, 25% SL
Weed Control Range: Dav spectrum nrog rau cov nyom txhua xyoo thiab cov nplooj dav dav.
Qhov zoo: Kev ua haujlwm nrawm, ua haujlwm tau zoo hauv thaj chaw ua liaj ua teb thiab hauv dej, zoo heev rau kev kho mob.
Nta: Hu rau tshuaj tua kab mob, cuam tshuam cov cell membranes, pom cov txiaj ntsig tsis pub dhau ib teev.
Systemic Herbicides
Cov tshuaj tua kab mob yog absorbed los ntawm cov nroj tsuag thiab txav mus thoob plaws hauv nws cov ntaub so ntswg, tua tag nrho cov nroj tsuag nrog rau nws cov hauv paus hniav.
Kev siv tsim nyog:
Systemic herbicides yog qhov zoo tagnrho rau kev ua tiav, kav ntev tswj cov nroj tsuag, nrog rau cov hauv paus hniav. Lawv yog siv rau:
Farmland: rau kev tswj cov nroj tsuag perennial.
Orchards thiab vineyards: rau tawv, sib sib zog nqus-rooted weeds.
Cov cheeb tsam uas tsis yog qoob loo: rau kev tswj cov nroj tsuag mus sij hawm ntev nyob ib puag ncig cov tsev thiab cov vaj tse.
Cov khoom pom zoo:
Glyphosate 480g / L SL
Lwm cov qauv: 360g / l SL, 540g / l SL, 75.7% WDG
Weed Control Range: Txhua xyoo thiab perennial grasses, broadleaf weeds, sedges, thiab woody nroj tsuag.
Qhov zoo: Ua tau zoo, ua kom tiav kev tshem tawm, ntseeg tau thiab siv dav.
Nta: Cov tshuaj tua kab mob, nqus los ntawm nplooj, hloov mus rau hauv paus, muaj nyob rau hauv ntau yam formulations.
Imazethapyr tshuaj ntsuab - Oxyfluorfen 240g/L EC
Lwm cov formulations: Oxyfluorfen 24% EC
Weed Control Range: Kev tswj dav dav hauv cov qoob loo leguminous, suav nrog cov nyom txhua xyoo thiab cov nplooj dav dav.
Qhov zoo: Siv tau zoo thiab muaj kev nyab xeeb rau cov qoob loo leguminous, kev tswj kav ntev, cov qoob loo tsawg tsawg.
Nta: Cov kab mob herbicide, absorbed los ntawm nplooj thiab cov hauv paus hniav, translocated thoob plaws hauv cov nroj tsuag, broad-spectrum weed tswj.
Post lub sij hawm: May-29-2024
