International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
Most Recent Cases of Herbicide Resistant Weeds Entered into the Database
(click on a column header to sort or click on a country for details)
#Date Last UpdatedSpeciesCountryFirst YearSite of Action
1 March 18, 2024Conyza canadensisUnited States (Oregon) United StatesOregon202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		61Horseweed27286
2 March 18, 2024Conyza bonariensisUnited States (Oregon) United StatesOregon202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		60Hairy Fleabane27285
3 March 18, 2024Amaranthus palmeriUnited States (Iowa) United StatesIowa202245 Multiple Resistance: 4 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth27284
4 January 21, 2024Bromus diandrusNew ZealandNew Zealand 202430 Inhibition of Acetolactate Synthase (B/2)
 		197Ripgut Brome27283
5 November 19, 2023Avena sterilisSpainSpain 202338 Inhibition of Acetyl CoA Carboxylase (A/1)
 		29Sterile Oat27282
6 November 9, 2023Amaranthus tuberculatus (=A. rudis)United States (Idaho) United StatesIdaho202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		219Tall Waterhemp27264
7 November 3, 2023Amaranthus hybridus (syn: quitensis)ItalyItaly 201824 Inhibition of Acetolactate Synthase (B/2)
 		12Smooth Pigweed27281
8 October 30, 2023Amaranthus tuberculatus (=A. rudis)United States (Iowa) United StatesIowa202145 Auxin Mimics (O/4)
 		219Tall Waterhemp27263
9 October 26, 2023Conyza bonariensisJordanJordan 202255 Multiple Resistance: 2 Sites of Action
PS I Electron Diversion (D/22)
Inhibition of Protoporphyrinogen Oxidase (E/14)
 		60Hairy Fleabane27269
10 October 25, 2023Echinochloa crus-galli var. crus-galliThailandThailand 202147 Inhibition of Cellulose Synthesis (L/26)
 		79Barnyardgrass27275
11 October 18, 2023Poa annuaIrelandIreland 202181 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		130Annual Bluegrass27262
12 September 26, 2023Monochoria vaginalisIndonesiaIndonesia 202222 Inhibition of Acetolactate Synthase (B/2)
 		202Arrowleafed Monochoria27274
13 September 14, 2023Ambrosia artemisiifoliaUkraineUkraine 2023230 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Protoporphyrinogen Oxidase (E/14)
 		18Common Ragweed26266
14 September 5, 2023Echinochloa crus-galli var. crus-galliBrazilBrazil 20185 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Cellulose Synthesis (L/26)
Auxin Mimics (O/4)
 		79Barnyardgrass26265
15 September 5, 2023Bidens subalternansBrazilBrazil 20235 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		194Greater Beggarticks26263
16 September 5, 2023Sagittaria montevidensisBrazilBrazil 20235 Auxin Mimics (O/4)
 		146California Arrowhead26264
17 August 28, 2023Bromus diandrusAustralia (Western Australia) AustraliaWestern Australia20201 Inhibition of Acetyl CoA Carboxylase (A/1)
 		197Ripgut Brome26262
18 August 5, 2023Panicum miliaceum var. ruderale Kitag.ChinaChina 20239 Inhibition of Acetolactate Synthase (B/2)
 		1359Wild Panicgrass27273
19 July 23, 2023Steinchisma laxumMexicoMexico 202329 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		1358Lax Panicgrass27271
20 July 13, 2023Echinochloa crus-galli var. crus-galliIndiaIndia 201721 Inhibition of Acetolactate Synthase (B/2)
 		79Barnyardgrass25264
21 July 11, 2023Amaranthus palmeriUnited States (Colorado) United StatesColorado202145 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth25265
22 July 11, 2023Amaranthus powelliiCanada (Ontario) CanadaOntario20197 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		15Powell Amaranth24243
23 July 6, 2023Digitaria sanguinalisNew ZealandNew Zealand 202230 Inhibition of Acetolactate Synthase (B/2)
 		77Large Crabgrass25262
24 June 29, 2023Hordeum jubatumCanada (Alberta) CanadaAlberta20227 Inhibition of Acetyl CoA Carboxylase (A/1)
 		358Foxtail Barley25263
25 June 23, 2023Ammannia multifloraChinaChina 20229 Inhibition of Acetolactate Synthase (B/2)
 		1360Many Flowered Ammannia27279
26 June 8, 2023Galium spuriumGreeceGreece 202219 Inhibition of Acetolactate Synthase (B/2)
 		93False Cleavers27278
27 June 5, 2023Plantago lanceolataSouth AfricaSouth Africa 202237 Multiple Resistance: 2 Sites of Action
PS I Electron Diversion (D/22)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		220Buckhorn Plantain27276
28 June 3, 2023Ambrosia artemisiifoliaUnited States (Michigan) United StatesMichigan202245 Auxin Mimics (O/4)
 		18Common Ragweed27277
29 May 9, 2023Echinochloa oryzoidesArgentinaArgentina 201648 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		261Early Watergrass25261
30 May 9, 2023Poa annuaUnited States (Georgia) United StatesGeorgia202245 Inhibition of Cellulose Synthesis (L/29)
 		130Annual Bluegrass25260
31 April 25, 2023Kochia scopariaCanada (Saskatchewan) CanadaSaskatchewan20217 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		101Kochia25259
32 April 24, 2023Bromus commutatusUnited KingdomUnited Kingdom 202044 Inhibition of Acetolactate Synthase (B/2)
 		357Meadow Brome25258
33 April 23, 2023Bromus sterilisUnited KingdomUnited Kingdom 202044 Inhibition of Acetolactate Synthase (B/2)
 		289Poverty Brome25257
34 April 23, 2023Bromus diandrusUnited KingdomUnited Kingdom 202044 Inhibition of Acetolactate Synthase (B/2)
 		197Ripgut Brome25256
35 April 4, 2023Lolium perenne ssp. multiflorumChinaChina 20229 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		110Italian Ryegrass27266
36 March 30, 2023Digitaria ciliarisChinaChina 20219 Inhibition of Acetyl CoA Carboxylase (A/1)
 		225Southern Crabgrass27272
37 March 28, 2023Amaranthus palmeriUnited States (Kansas) United StatesKansas202145 Multiple Resistance: 6 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
PSII inhibitors - Histidine 215 Binders (C3/6)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth24257
38 March 15, 2023Amaranthus retroflexusUnited States (North Carolina) United StatesNorth Carolina202245 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
 		16Redroot Pigweed24259
39 March 15, 2023Amaranthus retroflexusUnited States (North Carolina) United StatesNorth Carolina202245 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		16Redroot Pigweed24258
40 March 15, 2023Amaranthus retroflexusUnited States (North Carolina) United StatesNorth Carolina202045 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Protoporphyrinogen Oxidase (E/14)
 		16Redroot Pigweed22235
41 March 12, 2023Echinochloa phyllopogon (=E. oryzicola)ChinaChina 20239 Inhibition of Acetolactate Synthase (B/2)
 		178Late Watergrass27267
42 March 11, 2023Ammannia auriculataChinaChina 20239 Inhibition of Acetolactate Synthase (B/2)
 		183Eared Redstem27280
43 March 8, 2023Cyperus esculentusItalyItaly 201724 Inhibition of Acetolactate Synthase (B/2)
 		290Yellow Nutsedge24256
44 February 16, 2023Stellaria mediaUnited States (California) United StatesCalifornia202245 Inhibition of Acetolactate Synthase (B/2)
 		168Common Chickweed24253
45 February 2, 2023Leptochloa chinensisChinaChina 20239 Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
 		223Chinese Sprangletop27268
46 January 31, 2023Amaranthus palmeriUruguayUruguay 202273 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth24254
47 January 31, 2023Amaranthus hybridus (syn: quitensis)UruguayUruguay 202273 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		12Smooth Pigweed24255
48 December 20, 2022Lolium perenne ssp. multiflorumUnited States (North Carolina) United StatesNorth Carolina202245 Multiple Resistance: 4 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
PS I Electron Diversion (D/22)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		110Italian Ryegrass24251
49 December 4, 2022Amaranthus hybridus (syn: quitensis)ParaguayParaguay 202246 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		12Smooth Pigweed24252
50 November 22, 2022Chenopodium albumUkraineUkraine 2022230 Inhibition of Acetolactate Synthase (B/2)
 		47Common Lambsquarters24250
51 November 3, 2022Alopecurus myosuroidesSwitzerlandSwitzerland 201941 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		6Blackgrass20228
52 November 3, 2022Lolium perenne ssp. multiflorumSwitzerlandSwitzerland 202041 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		110Italian Ryegrass24249
53 November 3, 2022Conyza canadensisSwitzerlandSwitzerland 202141 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		61Horseweed24248
54 November 3, 2022Conyza bonariensisSwitzerlandSwitzerland 202041 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		60Hairy Fleabane24247
55 October 24, 2022Panicum dichotomiflorumUnited States (Illinois) United StatesIllinois201945 Inhibition of Acetolactate Synthase (B/2)
 		122Fall Panicum24246
56 October 24, 2022Amaranthus tuberculatus (=A. rudis)UruguayUruguay 202273 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		219Tall Waterhemp24245
57 October 24, 2022Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina202245 Inhibition of Glutamine Synthetase (H/10)
 		14Palmer Amaranth24244
58 October 6, 2022Amaranthus tuberculatus (=A. rudis)Canada (Ontario) CanadaOntario20217 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)
 		219Tall Waterhemp24242
59 July 26, 2022Amaranthus palmeriSouth AfricaSouth Africa 201837 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth23244
60 July 11, 2022Amaranthus hybridus (syn: quitensis)ArgentinaArgentina 202148 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		12Smooth Pigweed23243
61 July 6, 2022Echinochloa crus-galli var. crus-galliViet NamViet Nam 201774 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Cellulose Synthesis (L/26)
 		79Barnyardgrass23242
62 June 13, 2022Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina202245 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		14Palmer Amaranth23241
63 June 12, 2022Anthriscus caucalisGermanyGermany 201718 Inhibition of Acetolactate Synthase (B/2)
 		356Bur Chervil23240
64 April 27, 2022Digitaria sanguinalisArgentinaArgentina 201948 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		77Large Crabgrass23239
65 April 9, 2022Amaranthus palmeriUnited States (Idaho) United StatesIdaho202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth27265
66 April 8, 2022Raphanus raphanistrumAustralia (Western Australia) AustraliaWestern Australia20201 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
Auxin Mimics (O/4)
 		141Wild Radish19219
67 March 18, 2022Sorghum halepenseUnited States (Missouri) United StatesMissouri201945 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		166Johnsongrass23238
68 March 14, 2022Cyperus difformisIndiaIndia 201721 Inhibition of Acetolactate Synthase (B/2)
 		71Smallflower Umbrella Sedge23236
69 March 11, 2022Poa annuaUnited States (Tennessee) United StatesTennessee201745 Multiple Resistance: 7 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)
Inhibition of Glutamine Synthetase (H/10)
Inhibition of Microtubule Assembly (K1/3)
Inhibition of Cellulose Synthesis (L/29)
 		130Annual Bluegrass23237
70 February 8, 2022Lolium perenne ssp. multiflorumCanada (Ontario) CanadaOntario20217 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		110Italian Ryegrass22236
71 December 14, 2021Lolium perenne ssp. multiflorumIrelandIreland 202181 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		110Italian Ryegrass21237
72 December 14, 2021Alopecurus myosuroidesIrelandIreland 202181 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		6Blackgrass21236
73 November 23, 2021Tripleurospermum perforatum (=T. inodorum)Czech RepublicCzech Republic 202112 Inhibition of Acetolactate Synthase (B/2)
 		116Scentless Chamomile21235
74 October 25, 2021Bromus tectorumCanada (Alberta) CanadaAlberta20217 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		40Downy Brome (Cheatgrass)21234
75 October 8, 2021Zea mays ssp. mexicanaFranceFrance 202017 Inhibition of Acetyl CoA Carboxylase (A/1)
 		354Mexican teosinte21231
76 September 27, 2021Aster squamatusMexicoMexico 202129 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		353Saltmarsh Aster21229
77 August 30, 2021Amaranthus retroflexusUkraineUkraine 2020230 Inhibition of Acetolactate Synthase (B/2)
 		16Redroot Pigweed20231
78 August 30, 2021Polygonum pensylvanicumUnited States (Arkansas) United StatesArkansas202045 Inhibition of Acetolactate Synthase (B/2)
 		135Pennsylvania Smartweed20230
79 August 30, 2021Amaranthus palmeriUnited States (Arkansas) United StatesArkansas202045 Inhibition of Glutamine Synthetase (H/10)
 		14Palmer Amaranth20229
80 August 16, 2021Digitaria insularisParaguayParaguay 202046 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		239Sourgrass20223
81 August 11, 2021Lolium perenne ssp. multiflorumSwitzerlandSwitzerland 201841 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		110Italian Ryegrass20226
82 August 11, 2021Lolium perenne ssp. multiflorumSwitzerlandSwitzerland 201841 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		110Italian Ryegrass20227
83 August 11, 2021Sorghum halepenseSerbiaSerbia 2018245 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		166Johnsongrass20225
84 August 11, 2021Ambrosia artemisiifoliaSerbiaSerbia 2019245 Inhibition of Acetolactate Synthase (B/2)
 		18Common Ragweed20224
85 July 11, 2021Leptochloa fusca spp. fasicularisUnited States (California) United StatesCalifornia202045 Inhibition of Deoxy-D-Xylulose Phosphate Synthase (F4/13)
 		355Bearded Sprangletop21233
86 May 5, 2021Chloris radiataColombiaColombia 201910 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		340Radiate Fingergrass19224
87 April 29, 2021Amaranthus tuberculatus (=A. rudis)United States (North Carolina) United StatesNorth Carolina202045 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)
 		219Tall Waterhemp19222
88 March 13, 2021Amaranthus palmeriUnited States (Tennessee) United StatesTennessee202045 Multiple Resistance: 2 Sites of Action
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
Auxin Mimics (O/4)
 		14Palmer Amaranth19221
89 March 10, 2021Salsola tragusArgentinaArgentina 201948 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		147Russian-thistle19218
90 March 9, 2021Oryza sativa var. sylvaticaTurkeyTurkey 202071 Inhibition of Acetolactate Synthase (B/2)
 		242Red Rice19217
91 February 26, 2021Arctotheca calendulaAustralia (Western Australia) AustraliaWestern Australia20201 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Phytoene Desaturase inhibitors (F1/12)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		21Capeweed19216
92 February 23, 2021Rapistrum rugosumAustralia (New South Wales ) AustraliaNew South Wales 20211 Inhibition of Acetolactate Synthase (B/2)
 		142Turnipweed19215
93 February 23, 2021Echinochloa crus-galli var. crus-galliAustralia (New South Wales ) AustraliaNew South Wales 20211 Inhibition of Acetyl CoA Carboxylase (A/1)
 		79Barnyardgrass19214
94 February 4, 2021Euphorbia heterophyllaBrazilBrazil 20195 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		87Wild Poinsettia19213
95 February 4, 2021Digitaria insularisBrazilBrazil 20205 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		239Sourgrass19212
96 February 1, 2021Echinochloa crus-galli var. crus-galliBrazilBrazil 20205 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		79Barnyardgrass19211
97 January 25, 2021Bromus sterilisCzech RepublicCzech Republic 201712 Inhibition of Acetolactate Synthase (B/2)
 		289Poverty Brome18211
98 December 16, 2020Bromus rubensSpainSpain 201838 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		324Red Brome18210
99 November 26, 2020Bromus madritensisSpainSpain 201838 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		352Compact Brome18209
100 November 13, 2020Eleusine indicaItalyItaly 201924 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		81Goosegrass18208
101 October 20, 2020Amaranthus tuberculatus (=A. rudis)IsraelIsrael 201923 Inhibition of Acetolactate Synthase (B/2)
 		219Tall Waterhemp18207
102 October 7, 2020Amaranthus palmeriUnited States (Connecticut) United StatesConnecticut201945 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth18206
103 October 1, 2020Apera spica-ventiBelgiumBelgium 20193 Inhibition of Acetolactate Synthase (B/2)
 		20Silky Windgrass18199
104 September 23, 2020Amaranthus palmeriSpainSpain 201638 Inhibition of Acetolactate Synthase (B/2)
 		14Palmer Amaranth18204
105 September 21, 2020Poa annuaNew ZealandNew Zealand 202030 Inhibition of Acetyl CoA Carboxylase (A/1)
 		130Annual Bluegrass18203
106 September 10, 2020Avena fatuaIrelandIreland 201981 Inhibition of Acetyl CoA Carboxylase (A/1)
 		28Wild Oat18200
107 July 3, 2020Conyza canadensisFranceFrance 201917 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		61Horseweed18198
108 June 22, 2020Eleusine indicaMexicoMexico 201629 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		81Goosegrass18194
109 June 22, 2020Chloris barbata = (C. inflate)MexicoMexico 201829 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		53Swollen Fingergrass18197
110 June 22, 2020Parthenium hysterophorusMexicoMexico 201729 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		124Ragweed Parthenium18196
111 June 22, 2020Amaranthus palmeriMexicoMexico 201629 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth18195
112 June 22, 2020Sorghum halepenseAustralia (Queensland) AustraliaQueensland20191 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		166Johnsongrass18193
113 June 22, 2020Hordeum murinum ssp. leporinumSpainSpain 201838 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		98Hare Barley18192
114 May 20, 2020Eleusine indicaUnited States (Alabama) United StatesAlabama201945 PS I Electron Diversion (D/22)
 		81Goosegrass18191
115 January 22, 2020Poa annuaAustralia (Victoria) AustraliaVictoria20171 Inhibition of Acetyl CoA Carboxylase (A/1)
 		130Annual Bluegrass18190
116 January 22, 2020Poa annuaAustralia (New South Wales ) AustraliaNew South Wales 20171 Inhibition of Acetyl CoA Carboxylase (A/1)
 		130Annual Bluegrass18189
117 January 22, 2020Avena fatuaAustralia (Queensland) AustraliaQueensland20181 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		28Wild Oat18187
118 November 28, 2019Amaranthus hybridus (syn: quitensis)BrazilBrazil 20185 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		12Smooth Pigweed18184
119 November 28, 2019Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina201645 Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
 		14Palmer Amaranth18188
120 November 28, 2019Secale cerealeUnited States (Colorado) United StatesColorado201845 Inhibition of Acetolactate Synthase (B/2)
 		351Feral Rye18182
121 November 28, 2019Echinochloa crus-galli var. crus-galliArgentinaArgentina 201948 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		79Barnyardgrass18183
122 November 22, 2019Avena sterilis ssp. ludovicianaAustralia (New South Wales ) AustraliaNew South Wales 20181 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		30Sterile oat18186
123 November 22, 2019Sonchus asperUnited KingdomUnited Kingdom 201644 Inhibition of Acetolactate Synthase (B/2)
 		163Spiny Sowthistle18185
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