select Select by Herbicide 2,4,5-T 2,4-D 2,4-DB acetochlor acifluorfen aclonifen alachlor allidochlor/CDAA alloxydim ametryne amicarbazone amidosulfuron aminocyclopyrachlor aminopyralid amiprofos-methyl amitrole anilofos asulam atraton atrazine azafenidin azimsulfuron aziprotryne/aziprotryn barban beflubutamid benazolin benazolin-ethyl benefin=benfluralin benfuresate bensulfuron-methyl bensulide bentazon benzfendizone benzobicyclon benzofenap benzthiazuron bialaphos/bilanafos bicyclopyrone bifenox bispyribac-sodium bixlozone bromacil bromobutide bromofenoxim bromoxynil brompyrazon bromuron butachlor butafenacil butamifos butenachlor butralin butroxydim buturon butylate cacodylic acid cafenstrole CAMA carbetamide carfentrazone-ethyl chlomethoxyfen chloramben chloranocryl/dicryl chlorazine chlorbromuron chlorbufam chloridazon/pyrazon chlorimuron-ethyl chlornitrofen chloroflurenol chlorotoluron chloroxuron chlorphthalim chlorprocarb chlorpropham chlorsulfuron chlorthal-dimethyl/DCPA chlorthiamid cinidon-ethyl cinmethylin cinosulfuron clethodim clodinafop-propargyl clofop clomazone clomeprop cloproxydim clopyralid cloransulam-methyl CP 17029 cumyluron cyanazine cycloate cyclosulfamuron cycloxydim cyhalofop-butyl cyperquat cyprazine daimuron dalapon dazomet delachlor desmedipham desmetryne dicamba dichlobenil dichlorprop dichlorprop-P diclofop-methyl diclosulam diethatyl-ethyl difenoxuron difenzoquat diflufenican diflufenzopyr-sodium dimefuron dimepiperate dimethachlor dimethametryn dimethenamid dinitramine dinosam dinoseb dinoterb diphenamid dipropetryn diquat dithiopyr diuron DMPA DNOC DSMA dymron/daimuron eglinazine-ethyl endothall EPTC esprocarb ethalfluralin ethametsulfuron-methyl ethidimuron ethiozin ethofumesate ethoxyfen-ethyl ethoxysulfuron etinofen etobenzanid fenoprop fenoxaprop-ethyl fenquinotrione fenthiaprop fentrazamide fenuron flamprop-m flamprop-methyl flazasulfuron florasulam florpyrauxifen fluazifop-butyl fluazolate flucarbazone-Na flucetosulfuron fluchloralin flufenacet flufenpyr-ethyl flumetsulam flumiclorac-pentyl flumioxazin flumipropyn fluometuron (also group C2) fluorochloridone fluorodifen fluoroglycofen-ethyl fluoronitrofen fluothiuron flupoxam flupoxam flupropanate flupyrsulfuron-methyl-Na fluridone flurochloridone fluroxypyr flurtamone fluthiacet-methyl fomesafen foramsulfuron fosamine fosamine-ammonium glufosinate-ammonium glyphosate glyphosate-trimesium halauxifen halosulfuron-methyl haloxyfop-etotyl haloxyfop-methyl haloxyfop-P-methyl hexazinone imazamethabenz-methyl imazamox imazapic imazapyr imazaquin imazethapyr imazosulfuron indanofan Indaziflam iodosulfuron-methyl-Na ioxynil isocil isomethiozin isopropalin isoproturon isouron isoxaben isoxaflutole isoxapyrifop lactofen lenacil linuron MCPA MCPA-thioethyl MCPB mecoprop mecoprop-P medinoterb mefenacet mesosulfuron-methyl mesotrione metam metamifop metamitron metazachlor metazosulfuron methabenzthiazuron methoprotryne=methoprotryn methyldymron metobenzuron metobromuron metolachlor metosulam metoxuron metribuzin metsulfuron-methyl molinate monalide monolinuron monuron morfamquat MSMA naproanilide napropamide naptalam neburon nicosulfuron nitralin Nitrofen norflurazon oleic acid orbencarb orthosulfamuron orthosulfamuron oryzalin oxadiargyl oxadiazon oxasulfuron oxaziclomefone oxyfluorfen parafluron paraquat pebulate pelargonic acid pendimethalin penoxsulam pentanochlor pentoxazone pethoxamid phenisopham phenmedipham picloram picolinafen pinoxaden piperophos pretilachlor primisulfuron-methyl procarbazone-Na procyazine prodiamine profluazol profluralin profoxydim proglinazine-ethyl prometon prometryne propachlor propanil propaquizafop propazine propham propisochlor propoxycarbazone-Na propyzamide/pronamide prosulfocarb prosulfuron prynachlor pyraclonil pyraflufen-ethyl pyrasulfotole pyrazolynate pyrazosulfuron-ethyl pyrazoxyfen pyribenzoxim pyributicarb pyridafol pyridate pyriftalid pyriminobac-methyl pyrithiobac-sodium pyroxasulfone pyroxsulam quinclorac quinclorac (MOA in monocots) quinmerac quinoclamine quizalofop-ethyl quizalofop-P-tefuryl rimsulfuron saflufenacil sebuthylazine secbumeton secbumeton sethoxydim siduron simazine simetryne S-metolachlor solan sulcotrione sulfentrazone sulfometuron-methyl sulfosulfuron swep TBA TCA tebutam tebuthiuron tefuryltrione tembotrione tepraloxydim terbacil terbumeton terbuthylazine terbutryne tetflupyrolimet thenylchlor thiazafluron thiazopyr thidiazimin thiencarbazone-methyl thifensulfuron-methyl thiobencarb/benthiocarb tiafenacil tiocarbazil tolpyralate topramezone tralkoxydim tri-allate triasulfuron triaziflam tribenuron-methyl triclopyr trietazine trifloxysulfuron-Na Trifludimoxazin trifluralin triflusulfuron-methyl triofensulfuron tripyrasulfone tritosulfuron vernolate

select Select by HerbicideGroup - (Inhibition of dihydroorotate dehydrogenase (DHODH) ) A (Inhibition of Acetyl CoA Carboxylase ) B (Inhibition of Acetolactate Synthase ) C1 (PSII inhibitors - Serine 264 Binders ) C1 C2 (PSII inhibitors - Serine 264 Binders ) C3 (PSII inhibitors - Histidine 215 Binders ) D (PS I Electron Diversion ) E (Inhibition of Protoporphyrinogen Oxidase ) F1 (Phytoene Desaturase inhibitors) F2 (Inhibition of Hydroxyphenyl Pyruvate Dioxygenase ) F3 (Inhibition of Lycopene Cyclase ) F4 (Inhibition of Deoxy-D-Xylulose Phosphate Synthase) G (Inhibition of Enolpyruvyl Shikimate Phosphate Synthase ) H (Inhibition of Glutamine Synthetase ) I (Inhibition of Dihydropteroate Synthase) K1 (Inhibition of Microtubule Assembly) K2 (Inhibition of Microtubule Organization ) K3 N (Very Long-Chain Fatty Acid Synthesis inhibitors) L (Inhibition of Cellulose Synthesis ) M (Uncouplers) N (Inhibition of Very Long-Chain Fatty Acid Synthesis ) O (Auxin Mimics ) P (Auxin Transport inhibitor) Q (Inhibition of Fatty Acid Thioesterase ) R (Inhibition of Serine-Threonine Protein Phosphatase ) S (Inhibition of Solanesyl Diphosphate Synthase ) T (Inhibition of Homogentisate Solanesyltransferase ) Z (Antimicrotubule mitotic disrupter) Z (Cell elongation inhibitors) Z (Nucleic acid inhibitors) Z (Unknown)

Nucleic acid inhibitors - HRAC GROUP Z Unknown

		Active	ActiveID	Company	Example Trade Name	HRAC	HerbicideGroup	ModeofAction	WSSA
	Organoarsenicals
	Organoarsenicals	DSMA	251	Syngenta (ex Zen.)		Z	Nucleic acid inhibitors	Unknown	17	Small Structure	Medium Structure	Large Structure
	Organoarsenicals	MSMA	250	Syngenta (ex Zen.)	Ansar, Daconate, methylarsonic acid	Z	Nucleic acid inhibitors	Unknown	17	Small Structure	Medium Structure	Large Structure

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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Monday, July 14, 2025 .  Available  www.weedscience.org
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