U.S. and Canadian Herbicides

Mechanism

of Action

Common

Name

U.S. Canadian

Tradename Tradename

U.S. Premix Canadian Premix

Tradenames Tradenames

ACC-ase

Inhibitors (1)

clodinafop-P

diclofop

fenoxaprop-P

fluazifop-P

quizalofop

Discover Horizon

Hoelon Hoe-Grass

Puma Puma

Fusilade DX Fusilade II/Venture

Assure II Assure

 

Hoe-Grass II

Cheyenne, Dakota, Fusion, Tiller Champion Plus, Fusion, Laser, Laser DF, Triumph Plus

Fusion Fusion

 

 

clethodim

sethoxydim

tralkoxydim

Select/Prism Select

Poast Poast/Poast Ultra

Achieve Achieve

 

Poast Flax Max

Achieve Extra Gold, Prevail

ALS Enzyme

Inhibitors (2)

imazamethbnz

imazamox

imazapic

imazapyr

imazaquin

imazethapyr

Assert Assert 300-SC

Motive/Raptor

Plateau

Arsenal

Scepter

Pursuit Pursuit

 

Odyssey

Lightning, Sahara

Detail, Squadron, Steel, Tri-Scept

Lightning, Pursuit Plus, Resolve, Steel Odyssey

 

 

chlorimuron

chlorsulfuron

ethametsulfurn

halosulfuron

metsulfuron

nicosulfuron

oxasulfuron

primisulfuron

prosulfuron

rimsulfuron

sulfometuron

sulfosulfuron

thifensulfuron

triasulfuron

tribenuron

triflusulfuron

Classic

Glean/Telar

Muster Muster

Permit

Ally/Escort Ally Toss-N-Go

Accent Accent

Expert

Beacon

Peak

Matrix Elim, Prism

Oust

Maverik

Harmony GT, Pinnacle

Amber Amber

Express

UpBeet

Canopy XL, Reliance STS, Synchrony STS

Finesse

 

Canvas, Finesse

Accent Gold, Basis, Basis Gold, Celebrity Ultim

Exceed, NorthStar, Spirit

Exceed, Spirit

Accent Gold, Basis Gold Ultim

 

Basis, Canvas, Cheyenne, Champion Plus, Laser DF,

Harmony Extra Refine Extra Toss-N-Go, Triumph Plus

Unity

Canvas, Cheyenne, Harmony Extra Express Pack, Refine Extra TNG

 

 

chloransulam

diclosulam

flumetsulam

FirstRate

StrongArm

Python (Broadstrike)

FrontRow

Accent Gold, Brdstrike+Dual/Treflan, Hornet, Scorpion III

Root

Inhibitors

(DNA) (3)

benefin

ethalfluralin

oryzalin

pendimethalin

trifluralin

Balan

Sonalan Edge

Surflan

Prowl/others

Treflan Treflan/Advance

Trifluralin Bonanza/Heritage

others Rival

Team

Rout

Pursuit Plus, Squadron, Steel

Broadstrike+Treflan, Buckle, Freedom Fortress

Growth

Regulators (4)

 

2,4-D

 

 

2,4-DB

MCPA

 

MCPB

dichlorprop

mecoprop

2,4-D/others 2,4-D

 

 

Butyrac Cobutox/Embutox

MCPA/others MCPA

 

 

 

Mecoprop

Campaign, Crossbow, Curtail Achieve Extra Gold, Attain,

Landmaster BW, Starane + Salvo Champion Plus, Dichlorprop-D,

Tiller DyVel DS, Estaprop, Express Pack

Thumper, Turboprop

Bronate, Cheyenne, Curtail M, Buctril M, Champion Plus, Curtail M,

Dakota, Starane Plus Sword DyVel, Laser, Laser DF, Poast Flax Max,

Tiller Prevail, Target, Triumph Plus, Tropotox Plus

Tropotox Plus

Dichlorprop-D, Estaprop, Turboprop

DyVel DS, Target

dicamba

Banvel/SGF/Clarity Banvel

Celebrity, Distinct, Fallow Master, DyVel, DyVel DS,

Weedmaster Rustler, Target

clopyralid

fluroxypyr

picloram

Stinger/Reclaim Lontrel

Starane

Tordon 22K

Accent Gold, Curtail/M, Hornet, Scorpion III Curtail M, PoastFlaxMax

Prevail

Starane + Salvo, Starane + Sword Attain

 

quinclorac

Paramount/Drive Accord

 

 

 

 

 

 

 

 

 

Mechanism

of Action

Common

Name

U.S. Canadian

Tradename Tradename

U.S. Premix Canadian Premix

Tradenames Tradenames

Photosystem II Inhibitors (5)

(Different than 6)

 

atrazine

 

cyanazine

simazine

Atrazine/other Atrazine

 

Bladex Bladex

Princep Princep/Simazine

Basis Gold, Bicep/II/Lite, Buctril+Atrazine, Laddok,

Extrazine II, Guardsman, Harness Xtra, Primextra Light

Laddok, Lariat, Liberty ATZ, Marksman, Shotgun

Cy-Pro AT, Extrazine II

Derby

 

 

hexazinone

metribuzin

Velpar Velpar L

Lexone/Sencor Sencor/Lexone

 

Axiom DF, Canopy, Epic, Salute, Turbo

 

 

bromacil

terbacil

Hyvar X

Sinbar

Krovar I, WeedBlast

 

 

desmedipham

phenmedipham

Betanex

Betamix, Betamix Progress

Betamix, Betamix Progress

Photosystem II Inhibitors (6)

(Different than 5)

bromoxynil

Buctril/Broclean/Moxy Pardner

Bronate Achieve Extra Gold, Buctril M, Hoe-Grass II, Laser, Laser DF, Thumper, Unity

bentazon

Basagran Basagran

Galaxy, Laddok, Storm Laddok

pyridate

Tough

 

 

Photosystem II Inhibitors (7)

(diff. than 5or6)

diuron

linuron

tebuthiuron

Diuron/Direx/Karmex

Lorox/Linuron Same as U.S.

Spike

Krovar, Sahara, WeedBlast

 

 

propanil

Stampede Stampede EDF

Stampede CM

Lipid Synthesis Inhibition (8)

Thiocarbamates

cycloate

EPTC

triallate

Ro-Neet

Eptam/Eradicane Same as U.S.

Far-Go Avadex BW

 

DoublePlay

Buckle Fortress

Difenzoquat

difenzoquat

Avenge Avenge 200-C

 

 

EPSP Synthase Inhibitors (9)

glyphosate-ipa

Roundup/RT Roundup

Roundup Custom Roundup Dry

Roundup Ultra/RT Laredo

Roundup Original/RT Victor

Rodeo, Glyphos Wrangler

Bronco, Campaign, FieldMaster, Rustler

Landmaster BW, FallowMaster

 

 

glyphosate-NH3

Roundup Ultra Dry

 

 

 

 

glyphosate-tms

Touchdown Touchdown

 

 

Glutamine

Synthetase Inhibitors (10)

glufosinate

Liberty/Finale/Rely Liberty

Liberty ATZ

PPO

Inhibitors (14)

acifluorfen

fomesafen

lactofen

oxyfluorfen

Blazer/Status

Flexstar/Reflex

Cobra

Goal

Conclude, Galaxy, Scepter OT, Storm

Tornado, Twister

Stellar

 

 

fluathiacet

flumiclorac

flumioxazin

Action

Resource

Valor

 

Stellar

 

 

carfentrazone

sulfentrazone

Aim/Affinity

Authority/Spartan

 

Canopy XL

Acetamides (15)

(Action unknown)

acetochlor

alachlor

dimethenamid

flufenacet

metolachlor

propachlor

Harness/Surpass/TopNotch

Lasso/others

Frontier Frontier

Dual/Dual II/Magnum

Ramrod

DoublePlay, FieldMaster, FulTime, Harness Xtra

Bronco, Bullet, Freedom, Lariat

Detail, Guardsman, LeadOff, OpTill

Axiom, Epic

Bicep/II/Lite, Broadstrike+Dual, Turbo Primextra Light

Ramrod and Atrazine

Auxin

Inhibitor (19)

diflufenzopyr

 

 

Distinct

Photosystem I Inhibitors (22)

diquat

paraquat

Diquat Reglone/Pro

Gramoxone Extra Gramoxone

 

 

Carotenoid Inhibitors (28)

isoxaflutole

ZA 1296

Balance

Balance Pro, Epic, Reason

Cold, Hard

STEEL (29)

Plow, cultivator, rotary-hoe, etc.

 

 

 

 

Adapted from Weed Sci. Soc. of Am. (WSSA) Herbicide Classification System For Resistant Weed Management. Weed Technol. 11:384-389.

Information supplied by:

Dr. Richard Zollinger, Extension Weed Specialist, North Dakota State University

Dr. Doug Derksen, Weed Scientist, Manitoba Agricuture