International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
select
Herbicide Resistant Weeds in Canada
Herbicide Resistant Weeds in Canada
Herbicide Resistant Weeds in Canada
State  
Herbicide Resistant Weeds in Canada
 #SpeciesCommon NameFirst YearSite of Action

State: Alberta
  1 Stellaria mediaCommon ChickweedCanadaAlberta19887 Inhibition of Acetolactate Synthase (B/2)
 		481
  2 Kochia scopariaKochiaCanadaAlberta19897 Inhibition of Acetolactate Synthase (B/2)
 		65
  3 Avena fatuaWild OatCanadaAlberta19897 Multiple Resistance: 2 Sites of Action
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
Cell elongation inhibitors (Z/8)
 		66
  4 Setaria viridisGreen FoxtailCanadaAlberta19897 Inhibition of Microtubule Assembly (K1/3)
 		5071
  5 Avena fatuaWild OatCanadaAlberta19917 Inhibition of Acetyl CoA Carboxylase (A/1)
 		67
  6 Sinapis arvensisWild MustardCanadaAlberta19937 Inhibition of Acetolactate Synthase (B/2)
 		5036
  7 Galium spuriumFalse CleaversCanadaAlberta19967 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		508
  8 Sonchus asperSpiny SowthistleCanadaAlberta19967 Inhibition of Acetolactate Synthase (B/2)
 		1153
  9 Setaria viridisGreen FoxtailCanadaAlberta19967 Inhibition of Acetyl CoA Carboxylase (A/1)
 		5039
  10 Galeopsis tetrahitCommon HempnettleCanadaAlberta19987 Auxin Mimics (O/4)
 		1154
  11 Neslia paniculataBall MustardCanadaAlberta19987 Inhibition of Acetolactate Synthase (B/2)
 		1155
  12 Avena fatuaWild OatCanadaAlberta19987 Inhibition of Acetolactate Synthase (B/2)
 		5075
  13 Avena fatuaWild OatCanadaAlberta19987 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
 		5076
  14 Thlaspi arvenseField PennycressCanadaAlberta20017 Inhibition of Acetolactate Synthase (B/2)
 		5097
  15 Galeopsis tetrahitCommon HempnettleCanadaAlberta20067 Inhibition of Acetolactate Synthase (B/2)
 		5320
  16 Polygonum convolvulus (=Fallopia convolvulus)Wild BuckwheatCanadaAlberta20077 Inhibition of Acetolactate Synthase (B/2)
 		5379
  17 Salsola tragusRussian-thistleCanadaAlberta20077 Inhibition of Acetolactate Synthase (B/2)
 		7831
  18 Lolium persicumPersian DarnelCanadaAlberta20097 Inhibition of Acetyl CoA Carboxylase (A/1)
 		7832
  19 Crepis tectorumNarrowleaf HawksbeardCanadaAlberta20117 Inhibition of Acetolactate Synthase (B/2)
 		5606
  20 Capsella bursa-pastorisShepherd's-purseCanadaAlberta20117 Inhibition of Acetolactate Synthase (B/2)
 		5623
  21 Kochia scopariaKochiaCanadaAlberta20127 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		5592
  22 Vaccaria hispanicaCowcockleCanadaAlberta20127 Inhibition of Acetolactate Synthase (B/2)
 		5616
  23 Polygonum lapathifoliumPale SmartweedCanadaAlberta20147 Inhibition of Acetolactate Synthase (B/2)
 		11002
  24 Kochia scopariaKochiaCanadaAlberta20177 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
Auxin Mimics (O/4)
 		17147
  25 Bromus tectorumDowny Brome (Cheatgrass)CanadaAlberta20217 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		21234
  26 Hordeum jubatumFoxtail BarleyCanadaAlberta20227 Inhibition of Acetyl CoA Carboxylase (A/1)
 		25263

State: British Columbia
  27 Centaurea stoebe ssp. micranthosSpotted knapweedCanadaBritish Columbia20137 Auxin Mimics (O/4)
 		15061

State: Manitoba
  28 Setaria viridisGreen FoxtailCanadaManitoba19887 Inhibition of Microtubule Assembly (K1/3)
 		52
  29 Kochia scopariaKochiaCanadaManitoba19887 Inhibition of Acetolactate Synthase (B/2)
 		57
  30 Avena fatuaWild OatCanadaManitoba19907 Inhibition of Acetyl CoA Carboxylase (A/1)
 		50
  31 Sinapis arvensisWild MustardCanadaManitoba19907 Auxin Mimics (O/4)
 		55
  32 Setaria viridisGreen FoxtailCanadaManitoba19917 Inhibition of Acetyl CoA Carboxylase (A/1)
 		53
  33 Sinapis arvensisWild MustardCanadaManitoba19927 Inhibition of Acetolactate Synthase (B/2)
 		54
  34 Setaria viridisGreen FoxtailCanadaManitoba19927 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Microtubule Assembly (K1/3)
 		5037
  35 Avena fatuaWild OatCanadaManitoba19947 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
Antimicrotubule mitotic disrupter (Z/25)
 		51
  36 Sinapis arvensisWild MustardCanadaManitoba19947 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		56
  37 Galeopsis tetrahitCommon HempnettleCanadaManitoba19957 Inhibition of Acetolactate Synthase (B/2)
 		476
  38 Avena fatuaWild OatCanadaManitoba19977 Inhibition of Acetolactate Synthase (B/2)
 		5077
  39 Avena fatuaWild OatCanadaManitoba19977 Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
 		5078
  40 Avena fatuaWild OatCanadaManitoba19977 Multiple Resistance: 4 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
Antimicrotubule mitotic disrupter (Z/25)
 		5079
  41 Setaria viridisGreen FoxtailCanadaManitoba20027 Inhibition of Acetolactate Synthase (B/2)
 		5221
  42 Amaranthus retroflexusRedroot PigweedCanadaManitoba20027 Inhibition of Acetolactate Synthase (B/2)
 		5222
  43 Thlaspi arvenseField PennycressCanadaManitoba20087 Inhibition of Acetolactate Synthase (B/2)
 		5624
  44 Galium spuriumFalse CleaversCanadaManitoba20087 Inhibition of Acetolactate Synthase (B/2)
 		5629
  45 Stellaria mediaCommon ChickweedCanadaManitoba20087 Inhibition of Acetolactate Synthase (B/2)
 		5630
  46 Amaranthus powelliiPowell AmaranthCanadaManitoba20087 Inhibition of Acetolactate Synthase (B/2)
 		5631
  47 Polygonum lapathifoliumPale SmartweedCanadaManitoba20097 Inhibition of Acetolactate Synthase (B/2)
 		5625
  48 Kochia scopariaKochiaCanadaManitoba20147 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		9942
  49 Avena fatuaWild OatCanadaManitoba20157 Multiple Resistance: 4 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
 		11033

State: New Brunswick
  50 Chenopodium albumCommon LambsquartersCanadaNew Brunswick20187 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		28276

State: Nova Scotia
  51 Rumex acetosellaSheep SorrelCanadaNova Scotia20117 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		17122

State: Ontario
  52 Daucus carotaWild CarrotCanadaOntario19577 Auxin Mimics (O/4)
 		307
  53 Chenopodium albumCommon LambsquartersCanadaOntario19737 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		58
  54 Ambrosia artemisiifoliaCommon RagweedCanadaOntario19767 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		59
  55 Chenopodium album var. striatum (=C. strictum var. glaucophyllum)Lateflowering GoosefootCanadaOntario19767 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		60
  56 Amaranthus powelliiPowell AmaranthCanadaOntario19777 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		1158
  57 Senecio vulgarisCommon GroundselCanadaOntario19777 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5066
  58 Amaranthus retroflexusRedroot PigweedCanadaOntario19807 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		61
  59 Echinochloa crus-galli var. crus-galliBarnyardgrassCanadaOntario19817 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		62
  60 Panicum capillareWitchgrassCanadaOntario19817 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		63
  61 Setaria pumila (=S. glauca)Yellow FoxtailCanadaOntario19817 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		64
  62 Sinapis arvensisWild MustardCanadaOntario19837 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5065
  63 Conyza canadensisHorseweedCanadaOntario19937 PS I Electron Diversion (D/22)
 		48
  64 Lepidium virginicumVirginia PepperweedCanadaOntario19937 PS I Electron Diversion (D/22)
 		49
  65 Amaranthus powelliiPowell AmaranthCanadaOntario19987 Inhibition of Acetolactate Synthase (B/2)
 		1159
  66 Amaranthus retroflexusRedroot PigweedCanadaOntario19987 Inhibition of Acetolactate Synthase (B/2)
 		1161
  67 Amaranthus powelliiPowell AmaranthCanadaOntario19987 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5049
  68 Amaranthus powelliiPowell AmaranthCanadaOntario19997 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5048
  69 Solanum ptycanthumEastern Black NightshadeCanadaOntario20007 Inhibition of Acetolactate Synthase (B/2)
 		5211
  70 Ambrosia artemisiifoliaCommon RagweedCanadaOntario20007 Inhibition of Acetolactate Synthase (B/2)
 		5471
  71 Chenopodium albumCommon LambsquartersCanadaOntario20017 Inhibition of Acetolactate Synthase (B/2)
 		5123
  72 Setaria viridisGreen FoxtailCanadaOntario20017 Inhibition of Acetolactate Synthase (B/2)
 		5124
  73 Amaranthus retroflexusRedroot PigweedCanadaOntario20017 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5125
  74 Amaranthus tuberculatus (=A. rudis)Tall WaterhempCanadaOntario20027 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5212
  75 Amaranthus tuberculatus (=A. rudis)Tall WaterhempCanadaOntario20027 Inhibition of Acetolactate Synthase (B/2)
 		5213
  76 Setaria faberiGiant FoxtailCanadaOntario20037 Inhibition of Acetolactate Synthase (B/2)
 		5210
  77 Amaranthus hybridus (syn: quitensis)Smooth PigweedCanadaOntario20047 PSII inhibitors - Histidine 215 Binders (C3/6)
 		5472
  78 Amaranthus retroflexusRedroot PigweedCanadaOntario20057 PSII inhibitors - Histidine 215 Binders (C3/6)
 		5473
  79 Ambrosia trifidaGiant RagweedCanadaOntario20087 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		5483
  80 Solanum ptycanthumEastern Black NightshadeCanadaOntario20097 PS I Electron Diversion (D/22)
 		5493
  81 Conyza canadensisHorseweedCanadaOntario20107 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		5665
  82 Conyza canadensisHorseweedCanadaOntario20117 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		5666
  83 Digitaria sanguinalisLarge CrabgrassCanadaOntario20117 Inhibition of Acetyl CoA Carboxylase (A/1)
 		5678
  84 Ambrosia trifidaGiant RagweedCanadaOntario20117 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		7833
  85 Ambrosia artemisiifoliaCommon RagweedCanadaOntario20127 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		5713
  86 Amaranthus tuberculatus (=A. rudis)Tall WaterhempCanadaOntario20147 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		9940
  87 Amaranthus tuberculatus (=A. rudis)Tall WaterhempCanadaOntario20177 Multiple Resistance: 4 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		17140
  88 Amaranthus tuberculatus (=A. rudis)Tall WaterhempCanadaOntario20177 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		17141
  89 Amaranthus tuberculatus (=A. rudis)Tall WaterhempCanadaOntario20177 Multiple Resistance: 2 Sites of Action
PSII inhibitors - Serine 264 Binders (C1 C2/5)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		17142
  90 Amaranthus powelliiPowell AmaranthCanadaOntario20197 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		24243
  91 Lolium perenne ssp. multiflorumItalian RyegrassCanadaOntario20217 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		22236
  92 Amaranthus tuberculatus (=A. rudis)Tall WaterhempCanadaOntario20217 Multiple Resistance: 5 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		24242

State: Prince Edward Island
  93 Chenopodium albumCommon LambsquartersCanadaPrince Edward Island20187 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		28273
  94 Amaranthus retroflexusRedroot PigweedCanadaPrince Edward Island20237 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		28274
  95 Ambrosia artemisiifoliaCommon RagweedCanadaPrince Edward Island20237 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		28275

State: Quebec
  96 Brassica rapa (=B. campestris)Birdsrape MustardCanadaQuebec19777 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		433
  97 Amaranthus retroflexusRedroot PigweedCanadaQuebec19807 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		17126
  98 Chenopodium albumCommon LambsquartersCanadaQuebec19807 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		17132
  99 Ambrosia artemisiifoliaCommon RagweedCanadaQuebec19997 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5064
  100 Ambrosia artemisiifoliaCommon RagweedCanadaQuebec19997 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		17128
  101 Amaranthus retroflexusRedroot PigweedCanadaQuebec20017 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5126
  102 Ambrosia artemisiifoliaCommon RagweedCanadaQuebec20077 Inhibition of Acetolactate Synthase (B/2)
 		17127
  103 Chenopodium albumCommon LambsquartersCanadaQuebec20087 Inhibition of Acetolactate Synthase (B/2)
 		17131
  104 Amaranthus retroflexusRedroot PigweedCanadaQuebec20097 Inhibition of Acetolactate Synthase (B/2)
 		17125
  105 Amaranthus powelliiPowell AmaranthCanadaQuebec20127 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		17123
  106 Amaranthus powelliiPowell AmaranthCanadaQuebec20127 Inhibition of Acetolactate Synthase (B/2)
 		17124
  107 Avena fatuaWild OatCanadaQuebec20127 Inhibition of Acetyl CoA Carboxylase (A/1)
 		17129
  108 Brassica rapa (=B. campestris)Birdsrape MustardCanadaQuebec20177 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		17130

State: Saskatchewan
  109 Kochia scopariaKochiaCanadaSaskatchewan19887 Inhibition of Acetolactate Synthase (B/2)
 		5069
  110 Salsola tragusRussian-thistleCanadaSaskatchewan19897 Inhibition of Acetolactate Synthase (B/2)
 		5067
  111 Avena fatuaWild OatCanadaSaskatchewan19907 Inhibition of Acetyl CoA Carboxylase (A/1)
 		5041
  112 Setaria viridisGreen FoxtailCanadaSaskatchewan19917 Inhibition of Microtubule Assembly (K1/3)
 		5040
  113 Setaria viridisGreen FoxtailCanadaSaskatchewan19967 Inhibition of Acetyl CoA Carboxylase (A/1)
 		5038
  114 Setaria viridisGreen FoxtailCanadaSaskatchewan19967 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Microtubule Assembly (K1/3)
 		5070
  115 Avena fatuaWild OatCanadaSaskatchewan19967 Inhibition of Acetolactate Synthase (B/2)
 		5072
  116 Avena fatuaWild OatCanadaSaskatchewan19967 Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
 		5073
  117 Avena fatuaWild OatCanadaSaskatchewan19967 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
 		5074
  118 Sinapis arvensisWild MustardCanadaSaskatchewan20027 Inhibition of Acetolactate Synthase (B/2)
 		5243
  119 Lolium persicumPersian DarnelCanadaSaskatchewan20047 Inhibition of Acetyl CoA Carboxylase (A/1)
 		5244
  120 Stellaria mediaCommon ChickweedCanadaSaskatchewan20057 Inhibition of Acetolactate Synthase (B/2)
 		5322
  121 Galium spuriumFalse CleaversCanadaSaskatchewan20067 Inhibition of Acetolactate Synthase (B/2)
 		5321
  122 Capsella bursa-pastorisShepherd's-purseCanadaSaskatchewan20087 Inhibition of Acetolactate Synthase (B/2)
 		5381
  123 Thlaspi arvenseField PennycressCanadaSaskatchewan20097 Inhibition of Acetolactate Synthase (B/2)
 		5626
  124 Chenopodium albumCommon LambsquartersCanadaSaskatchewan20097 Inhibition of Acetolactate Synthase (B/2)
 		5627
  125 Amaranthus retroflexusRedroot PigweedCanadaSaskatchewan20107 Inhibition of Acetolactate Synthase (B/2)
 		5628
  126 Kochia scopariaKochiaCanadaSaskatchewan20127 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		7834
  127 Kochia scopariaKochiaCanadaSaskatchewan20157 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		11032
  128 Kochia scopariaKochiaCanadaSaskatchewan20217 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		25259
PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site.
Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Friday, November 22, 2024 .  Available  www.weedscience.org
Copyright © 1993- 2024 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.