Hormone herbicides feem ntau muaj qhov zoo ntawm kev ua tau zoo, dav siv tshuaj tua kab mob, tus nqi qis, thiab tsis muaj kev tiv thaiv, thiab tau siv dav thoob ntiaj teb. Nyob rau hauv xyoo tas los no, ob hom tshuaj tua kab mob hormonal nrog cov qauv tshiab aryl picolinate-fluoropyridine thiab halauxifen-methyl- tau tsim thiab tsim tawm, txhaj tshuaj tshiab tseem ceeb rau hauv kev tsim cov tshuaj tua kab mob hormonal. Piv nrog rau lwm cov tshuaj hormonal herbicides, fluopyridine thiab halauxifen-methyl muaj qis npaum li cas, wider herbicidal spectrum, yog ib puag ncig tus phooj ywg, thiab yog cov cuab yeej tshiab rau kev tswj cov nroj tsuag resistant.
Mechanism ntawm kev ua thiab kev siv
Halauxifen-methyl muaj cov qauv tshiab aryl picolinate thiab yog tshuaj tua kab mob tshuaj tua kab mob. Pawg Neeg Saib Xyuas Kev Tiv Thaiv Tshuaj Tiv Thaiv (HRAC) muab faib ua pawg O (Auxin Mimics). Hom kev ua ntawm lwm cov tshuaj hormonal herbicides zoo ib yam. Nws cuam tshuam nrog kev ua haujlwm ntawm lub cev thiab biochemical ntawm cov nroj tsuag los ntawm kev khi rau cov tshuaj hormones hauv cov nroj tsuag, yog li ua rau tuag ntawm cov nroj tsuag rhiab heev. Tom qab siv cov tshuaj tua kab, qhov saum npoo av ntawm cov nyom nyom loj hlob txawv txav thiab tshwm o. Cov nplooj nplooj nplooj loj tuaj deformed, cov ntaub so ntswg vascular puas tsuaj, thiab tom qab ntawd tuag.
Piv nrog rau lwm cov tshuaj herbicides nrog cov txheej txheem ntawm kev ua, tshwj xeeb tshaj yog cov tshuaj tua kab mob nrog inhibitors ntawm acetyl-CoA carboxylase (ACCase) thiab acetolactate synthase (ALS), hormonal herbicides muaj ntau qhov chaw thiab cov hom phiaj nyuaj. Yog li ntawd, kev tiv thaiv tsis tshua muaj peev xwm txhim kho thiab qib ntawm kev tiv thaiv tsawg. Halauxifen-methyl ua rau ob lub hom phiaj tseem ceeb tshaj plaws ntawm cov tshuaj hormonal herbicides-TIR1 thiab AFB5. Thiab nws txoj kev tshwj xeeb ntawm kev khi rau receptors, tshwj xeeb tshaj yog nws nruj khi rau AFB5, tso cai rau nws cov koob tshuaj kom txo qis dua piv nrog lwm cov tshuaj hormonal. Halauxifen-methyl muaj qhov sib txawv receptor ntau dua li cov tshuaj tua kab mob tshuaj tua kab mob, yog li tsis muaj kev cuam tshuam nrog cov tshuaj tua kab mob no, lossis nrog tshuaj tua kab mob nrog rau lwm yam kev ua haujlwm.
Lub tshuab ua haujlwm ntawm halauxifen-methyl yog qhov tshiab, ua rau nws tsim nyog rau kev tswj hwm kev tiv thaiv thiab daws cov teeb meem paub txog kev tiv thaiv. Nws suav nrog inhibitors ntawm ALS, ACCase, hydroxyphenylpyruvate oxidase (HPPD), nrog rau cov nroj tsuag uas txhim kho cov tshuaj tua kab mob xws li glyphosate, dichloroquinoline, glyphosate, thiab triazine. Nws muaj kev ua haujlwm zoo tiv thaiv barnyard nyom hauv teb nplej.
Halauxifen-methyl feem ntau yog absorbed los ntawm nplooj ntawm cov nroj tsuag, thiab ib tug me me npaum li cas yog absorbed los ntawm cov hauv paus hniav. Nws kis tau nyob rau hauv xylem thiab phloem, thiab accumulates ntawm qhov loj hlob taw tes rau exert nws cov nyhuv. Halauxifen-methyl muaj qhov dav ntawm kev tswj cov nroj tsuag, thiab muaj kev tswj xyuas zoo ntawm cov nyom nyom xws li nyom nyom, nyom barnyard nyom, nplej barnyard nyom, thiab millet, nrog rau cov nyom nyom xws li heterotypic sedge, roj sedge, tawg nplej. sedge, aromatic aconite, thiab tshav ntuj drift nyom. Nws tseem muaj kev tswj xyuas zoo rau cov nroj tsuag dav dav xws li tilapia, Alisma orientalis, dej amaranth, amaranth, ragweed, quinoa, me ya awn, niam nyom, dej lilac, Yujiuhua, Cigu, thiab Canger.
Halauxifen-methyl muaj kev xaiv tshwj xeeb thiab kev nyab xeeb siab rau mov. Lub tuam txhab kev txhim kho thawj zaug tau tsim nws rau cov nplej, suav nrog cov nplej ncaj qha thiab cov qoob loo cog qoob loo. Tsis tas li ntawd, los ntawm kev ntxiv cov kev nyab xeeb, nws tau nkag mus rau hauv kev lag luam xws li cov qoob loo qoob loo, cov qoob loo (kev kho mob ua ntej) , orchards, lawns, pastures, pastures, and water surfaces (pas thiab pas dej).
Halauxifen-methyl yog ceev-ua yeeb yam, tua cov nyom kom tsis muaj rebound, thiab muaj kev kho zoo thiab tshem tawm kev ua si. Tom qab ntawv thov, cov nroj tsuag broadleaf rhiab yuav siv sijhawm li 2 teev thiab yuav pib tuag tom qab 3 hnub.
Halauxifen-methyl tuaj yeem muab kev tswj xyuas zoo ntawm kev noj tsawg heev. Raws li cov nroj tsuag sib txawv thiab cov txheej txheem siv, qhov ntau npaum ntawm cov khoom xyaw nquag yog 5-50 g/hm2. Cov kev ntsuam xyuas tau pom tias qhov ntau npaum li cas ntawm halauxifen-methyl yog 153 npaug qis dua li lwm cov tshuaj herbicides uas nquag siv hauv teb nplej.
Halauxifen-methyl muaj zog miscibility thiab tuaj yeem tov nrog feem ntau siv tshuaj tua kab mob hauv cov nplej. Nws muaj cov nyhuv synergistic, yog ib puag ncig tus phooj ywg, thiab muaj kev nyab xeeb rau lwm yam kab mob. Cov khoom xyaw nquag muaj xws li penoxsulam, cyhalofop-al, fenpyridine, bissotrione, fluopyron, pretilachlor, diflufenac, aphenacetate, thiab lwm yam.
Halauxifen-methyl yog ib puag ncig tus phooj ywg. Nws muaj cov toxicity tsawg heev rau cov kab mob hauv dej thiab tuaj yeem siv rau ntawm qhov chaw dej (xws li dej ntws, dej ntws, pas dej, thiab lwm yam). Nws yog ib yam khoom uas muaj kev pheej hmoo tsawg.
Cov ntsiab lus
Halauxifen-methyl yog cov txiaj ntsig zoo thiab dav-spectrum, thiab muaj txiaj ntsig zoo tiv thaiv cov nplooj dav dav, cov nyom nyom thiab cov ceg ntoo. Nws tseem tuaj yeem tswj cov nroj tsuag uas tiv taus ALS inhibitors, ACCase inhibitors, HPPD inhibitors, triazine herbicides, propanil, quinclorac, glyphosate, thiab lwm yam. Nws muaj ntau yam kev siv. Nws tuaj yeem tswj tsis tau tsuas yog cov nroj tsuag hauv cov nplej, tab sis kuj tseem txuas ntxiv mus rau thaj chaw uas tsis yog kev ua liaj ua teb xws li pob kws, taum pauv, orchards, pastures, pas dej, pas dej, thaj chaw lag luam, thiab cov tsiaj qus. Tsis tas li ntawd, halauxifen-methyl muaj cov tshuaj tsawg, cov nyhuv ntev ntev, muaj kev nyab xeeb rau cov nroj tsuag uas tsis yog hom phiaj, thiab yog ib puag ncig zoo. Raws li kev tiv thaiv ntawm barnyard nyom hauv teb nplej nce xyoo los ntawm lub xyoo, kev txhim kho cov cuab yeej tswj kev tiv thaiv hauv thaj chaw muaj feem cuam tshuam yuav siv sijhawm qee lub sijhawm. Yog li no, halauxifen-methyl tam sim no yog ib qho cuab yeej zoo tshaj plaws rau kev tswj hwm ntawm barnyardgrass ua ke nrog lwm cov tshuaj xws li cyhalofop-al, oxazopyramide, thiab lwm yam, thiab tsim nyog mloog.
