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 August 28, 2025Helianthus annuusMexicoMexico 202329 Inhibition of Acetolactate Synthase (B/2)
 		95Common Sunflower32283
2 August 28, 2025Eleusine indicaUnited States (North Carolina) United StatesNorth Carolina202245 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		81Goosegrass32279
3 August 19, 2025Lolium rigidumAlgeriaAlgeria 2023115 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		112Rigid Ryegrass29277
4 August 19, 2025Lolium rigidumTunisiaTunisia 202378 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		112Rigid Ryegrass29276
5 August 19, 2025Lolium rigidumMoroccoMorocco 2023166 Inhibition of Acetolactate Synthase (B/2)
 		112Rigid Ryegrass29272
6 August 19, 2025Lolium rigidumMoroccoMorocco 2023166 Inhibition of Acetyl CoA Carboxylase (A/1)
 		112Rigid Ryegrass29271
7 August 19, 2025Lolium rigidumMoroccoMorocco 2023166 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		112Rigid Ryegrass29278
8 August 19, 2025Papaver rhoeasTunisiaTunisia 202578 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		123Corn Poppy32278
9 August 19, 2025Papaver rhoeasMoroccoMorocco 2025166 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		123Corn Poppy32277
10 August 18, 2025Arctotheca calendulaAustralia (Western Australia) AustraliaWestern Australia20211 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		21Capeweed32276
11 August 18, 2025Kochia scopariaUnited States (South Dakota) United StatesSouth Dakota202345 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		101Kochia32275
12 July 30, 2025Amaranthus palmeriUnited States (Arkansas) United StatesArkansas202345 Auxin Mimics (O/4)
 		14Palmer Amaranth32271
13 July 25, 2025Lolium perenne ssp. multiflorumUnited States (New York) United StatesNew York202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		110Italian Ryegrass32273
14 July 24, 2025Kochia scopariaArgentinaArgentina 202348 Inhibition of Acetolactate Synthase (B/2)
 		101Kochia31277
15 July 24, 2025Daucus carotaNew ZealandNew Zealand 202530 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		76Wild Carrot32274
16 July 24, 2025Stellaria mediaEstoniaEstonia 202199 Inhibition of Acetolactate Synthase (B/2)
 		168Common Chickweed30270
17 July 24, 2025Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina202545 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		14Palmer Amaranth32272
18 July 23, 2025Amaranthus palmeriItalyItaly 201824 Inhibition of Acetolactate Synthase (B/2)
 		14Palmer Amaranth32268
19 June 5, 2025Poa trivialisIrelandIreland 202381 Inhibition of Acetolactate Synthase (B/2)
 		350Roughstalk Bluegrass31279
20 May 30, 2025Panicum dichotomiflorumSpainSpain 202238 Inhibition of Acetolactate Synthase (B/2)
 		122Fall Panicum31276
21 May 30, 2025Kochia scopariaSpainSpain 202238 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
Auxin Mimics (O/4)
 		101Kochia31275
22 May 30, 2025Conyza sumatrensisBoliviaBolivia 20244 PS I Electron Diversion (D/22)
 		65Sumatran Fleabane31271
23 May 30, 2025Rapistrum rugosumArgentinaArgentina 201848 Inhibition of Acetolactate Synthase (B/2)
 		142Turnipweed31273
24 May 22, 2025Amaranthus palmeriArgentinaArgentina 202548 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		14Palmer Amaranth31274
25 April 24, 2025Conyza canadensisMexicoMexico 201829 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		61Horseweed31270
26 March 3, 2025Polygonum convolvulus (=Fallopia convolvulus)United States (Kansas) United StatesKansas202045 Inhibition of Acetolactate Synthase (B/2)
 		88Wild Buckwheat31269
27 February 24, 2025Brassica rapa (=B. campestris)MexicoMexico 202129 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
Auxin Mimics (O/4)
 		36Birdsrape Mustard31268
28 January 27, 2025Amaranthus palmeriUnited States (New York) United StatesNew York202445 Multiple Resistance: 2 Sites of Action
PSII inhibitors - Serine 264 Binders (C1 C2/5)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth30269
29 January 27, 2025Conyza canadensisUnited States (New York) United StatesNew York202445 PS I Electron Diversion (D/22)
 		61Horseweed30268
30 December 7, 2024Amaranthus palmeriTurkeyTurkey 202371 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth29268
31 December 5, 2024Steinchisma laxumColombiaColombia 202310 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		1358Lax Panicgrass27271
32 December 2, 2024Setaria viridisUkraineUkraine 2024230 Inhibition of Acetolactate Synthase (B/2)
 		153Green Foxtail29269
33 November 27, 2024Alopecurus myosuroidesFranceFrance 202217 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		6Blackgrass29265
34 November 6, 2024Lolium rigidumTunisiaTunisia 202378 Inhibition of Acetolactate Synthase (B/2)
 		112Rigid Ryegrass29275
35 October 24, 2024Atriplex patulaFranceFrance 201917 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		26Halberdleaf Orach29266
36 October 10, 2024Lolium rigidumAlgeriaAlgeria 2023115 Inhibition of Acetolactate Synthase (B/2)
 		112Rigid Ryegrass29274
37 October 10, 2024Lolium rigidumAlgeriaAlgeria 2023115 Inhibition of Acetyl CoA Carboxylase (A/1)
 		112Rigid Ryegrass29273
38 October 9, 2024Galium spuriumAustriaAustria 20242 Inhibition of Acetolactate Synthase (B/2)
 		93False Cleavers29264
39 September 23, 2024Echinochloa colonaPakistanPakistan 202486 Inhibition of Acetolactate Synthase (B/2)
 		78Junglerice29279
40 September 17, 2024Amaranthus albusIsraelIsrael 202323 Inhibition of Acetolactate Synthase (B/2)
 		7Tumble Pigweed29280
41 September 5, 2024Avena fatuaPakistanPakistan 202486 Inhibition of Acetyl CoA Carboxylase (A/1)
 		28Wild Oat29281
42 August 29, 2024Amaranthus 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)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
Auxin Mimics (O/4)
 		14Palmer Amaranth24257
43 August 24, 2024Alopecurus myosuroidesFranceFrance 202017 Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
 		6Blackgrass29267
44 August 11, 2024Schoenoplectus juncoidesChinaChina 20249 Inhibition of Acetolactate Synthase (B/2)
 		196Rock Bulrush29282
45 August 6, 2024Echinochloa crus-pavonisChinaChina 20249 Auxin Mimics (O/4)
 		193Gulf Cockspur29283
46 August 3, 2024Amaranthus palmeriUnited States (Oregon) United StatesOregon202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth29270
47 July 21, 2024Chenopodium albumCanada (New Brunswick) CanadaNew Brunswick20187 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		47Common Lambsquarters28276
48 July 14, 2024Ambrosia artemisiifoliaCanada (Prince Edward Island) CanadaPrince Edward Island20237 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		18Common Ragweed28275
49 July 12, 2024Amaranthus retroflexusCanada (Prince Edward Island) CanadaPrince Edward Island20237 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		16Redroot Pigweed28274
50 July 8, 2024Chenopodium albumCanada (Prince Edward Island) CanadaPrince Edward Island20187 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		47Common Lambsquarters28273
51 June 15, 2024Oryza sativa var. sylvaticaArgentinaArgentina 201848 Inhibition of Acetolactate Synthase (B/2)
 		242Red Rice27289
52 June 8, 2024Conyza bonariensisUruguayUruguay 202273 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		60Hairy Fleabane27291
53 June 6, 2024Cyperus difformisPortugalPortugal 202334 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Histidine 215 Binders (C3/6)
 		71Smallflower Umbrella Sedge28270
54 May 24, 2024Bidens pilosaBrazilBrazil 20225 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		32Hairy Beggarticks27288
55 May 24, 2024Digitaria sanguinalisSwitzerlandSwitzerland 202141 Inhibition of Acetolactate Synthase (B/2)
 		77Large Crabgrass27290
56 May 24, 2024Amaranthus hybridus (syn: quitensis)South AfricaSouth Africa 202437 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		12Smooth Pigweed27287
57 May 19, 2024Glebionis segetumGreeceGreece 202119 Inhibition of Acetolactate Synthase (B/2)
 		2358Corn Marigold28272
58 May 4, 2024Echinochloa phyllopogon (=E. oryzicola)PortugalPortugal 202034 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		178Late Watergrass28269
59 April 20, 2024Echinochloa phyllopogon (=E. oryzicola)PortugalPortugal 202034 Inhibition of Acetyl CoA Carboxylase (A/1)
 		178Late Watergrass28268
60 April 9, 2024Papaver rhoeasPortugalPortugal 201834 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		123Corn Poppy28267
61 March 25, 2024Chloris truncataSpainSpain 202338 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		262Windmill Grass27293
62 March 18, 2024Conyza canadensisUnited States (Oregon) United StatesOregon202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		61Horseweed27286
63 March 18, 2024Conyza bonariensisUnited States (Oregon) United StatesOregon202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		60Hairy Fleabane27285
64 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
65 March 5, 2024Papaver rhoeasPortugalPortugal 201834 Inhibition of Acetolactate Synthase (B/2)
 		123Corn Poppy28271
66 March 3, 2024Lolium perenne ssp. multiflorumPortugalPortugal 201934 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		110Italian Ryegrass28266
67 February 24, 2024Echinochloa crus-galli var. crus-galliPortugalPortugal 201834 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		79Barnyardgrass28265
68 February 20, 2024Amaranthus palmeriSpainSpain 202338 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth27292
69 January 21, 2024Bromus diandrusNew ZealandNew Zealand 202430 Inhibition of Acetolactate Synthase (B/2)
 		197Ripgut Brome27283
70 November 19, 2023Avena sterilisSpainSpain 202338 Inhibition of Acetyl CoA Carboxylase (A/1)
 		29Sterile Oat27282
71 November 9, 2023Amaranthus tuberculatus (=A. rudis)United States (Idaho) United StatesIdaho202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		219Tall Waterhemp27264
72 November 3, 2023Amaranthus hybridus (syn: quitensis)ItalyItaly 201824 Inhibition of Acetolactate Synthase (B/2)
 		12Smooth Pigweed27281
73 October 30, 2023Amaranthus tuberculatus (=A. rudis)United States (Iowa) United StatesIowa202145 Auxin Mimics (O/4)
 		219Tall Waterhemp27263
74 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
75 October 25, 2023Echinochloa crus-galli var. crus-galliThailandThailand 202147 Inhibition of Cellulose Synthesis (L/26)
 		79Barnyardgrass27275
76 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
77 September 26, 2023Monochoria vaginalisIndonesiaIndonesia 202222 Inhibition of Acetolactate Synthase (B/2)
 		202Arrowleafed Monochoria27274
78 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
79 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
80 September 5, 2023Bidens subalternansBrazilBrazil 20235 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		194Greater Beggarticks26263
81 September 5, 2023Sagittaria montevidensisBrazilBrazil 20235 Auxin Mimics (O/4)
 		146California Arrowhead26264
82 August 28, 2023Bromus diandrusAustralia (Western Australia) AustraliaWestern Australia20201 Inhibition of Acetyl CoA Carboxylase (A/1)
 		197Ripgut Brome26262
83 August 5, 2023Panicum miliaceum var. ruderale Kitag.ChinaChina 20239 Inhibition of Acetolactate Synthase (B/2)
 		1359Wild Panicgrass27273
84 July 13, 2023Echinochloa crus-galli var. crus-galliIndiaIndia 201721 Inhibition of Acetolactate Synthase (B/2)
 		79Barnyardgrass25264
85 July 11, 2023Amaranthus palmeriUnited States (Colorado) United StatesColorado202145 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth25265
86 July 11, 2023Amaranthus powelliiCanada (Ontario) CanadaOntario20197 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		15Powell Amaranth24243
87 July 6, 2023Digitaria sanguinalisNew ZealandNew Zealand 202230 Inhibition of Acetolactate Synthase (B/2)
 		77Large Crabgrass25262
88 June 29, 2023Hordeum jubatumCanada (Alberta) CanadaAlberta20227 Inhibition of Acetyl CoA Carboxylase (A/1)
 		358Foxtail Barley25263
89 June 23, 2023Ammannia multifloraChinaChina 20229 Inhibition of Acetolactate Synthase (B/2)
 		1360Many Flowered Ammannia27279
90 June 8, 2023Galium spuriumGreeceGreece 202219 Inhibition of Acetolactate Synthase (B/2)
 		93False Cleavers27278
91 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
92 June 3, 2023Ambrosia artemisiifoliaUnited States (Michigan) United StatesMichigan202245 Auxin Mimics (O/4)
 		18Common Ragweed27277
93 May 9, 2023Echinochloa oryzoidesArgentinaArgentina 201648 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		261Early Watergrass25261
94 May 9, 2023Poa annuaUnited States (Georgia) United StatesGeorgia202245 Inhibition of Cellulose Synthesis (L/29)
 		130Annual Bluegrass25260
95 April 25, 2023Kochia scopariaCanada (Saskatchewan) CanadaSaskatchewan20217 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		101Kochia25259
96 April 24, 2023Bromus commutatusUnited KingdomUnited Kingdom 202044 Inhibition of Acetolactate Synthase (B/2)
 		357Meadow Brome25258
97 April 23, 2023Bromus sterilisUnited KingdomUnited Kingdom 202044 Inhibition of Acetolactate Synthase (B/2)
 		289Poverty Brome25257
98 April 23, 2023Bromus diandrusUnited KingdomUnited Kingdom 202044 Inhibition of Acetolactate Synthase (B/2)
 		197Ripgut Brome25256
99 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
100 March 30, 2023Digitaria ciliarisChinaChina 20219 Inhibition of Acetyl CoA Carboxylase (A/1)
 		225Southern Crabgrass27272
101 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
102 March 15, 2023Amaranthus retroflexusUnited States (North Carolina) United StatesNorth Carolina202245 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		16Redroot Pigweed24258
103 March 12, 2023Echinochloa phyllopogon (=E. oryzicola)ChinaChina 20239 Inhibition of Acetolactate Synthase (B/2)
 		178Late Watergrass27267
104 March 11, 2023Ammannia auriculataChinaChina 20239 Inhibition of Acetolactate Synthase (B/2)
 		183Eared Redstem27280
105 March 8, 2023Cyperus esculentusItalyItaly 201724 Inhibition of Acetolactate Synthase (B/2)
 		290Yellow Nutsedge24256
106 February 16, 2023Stellaria mediaUnited States (California) United StatesCalifornia202245 Inhibition of Acetolactate Synthase (B/2)
 		168Common Chickweed24253
107 February 2, 2023Leptochloa chinensisChinaChina 20239 Inhibition of Hydroxyphenyl Pyruvate Dioxygenase (F2/27)
 		223Chinese Sprangletop27268
108 January 31, 2023Amaranthus palmeriUruguayUruguay 202273 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth24254
109 January 31, 2023Amaranthus hybridus (syn: quitensis)UruguayUruguay 202273 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		12Smooth Pigweed24255
110 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
111 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
112 November 22, 2022Chenopodium albumUkraineUkraine 2022230 Inhibition of Acetolactate Synthase (B/2)
 		47Common Lambsquarters24250
113 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
114 November 3, 2022Conyza canadensisSwitzerlandSwitzerland 202141 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		61Horseweed24248
115 November 3, 2022Conyza bonariensisSwitzerlandSwitzerland 202041 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		60Hairy Fleabane24247
116 October 24, 2022Panicum dichotomiflorumUnited States (Illinois) United StatesIllinois201945 Inhibition of Acetolactate Synthase (B/2)
 		122Fall Panicum24246
117 October 24, 2022Amaranthus tuberculatus (=A. rudis)UruguayUruguay 202273 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		219Tall Waterhemp24245
118 October 24, 2022Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina202245 Inhibition of Glutamine Synthetase (H/10)
 		14Palmer Amaranth24244
119 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
120 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
121 July 11, 2022Amaranthus hybridus (syn: quitensis)ArgentinaArgentina 202148 Inhibition of Protoporphyrinogen Oxidase (E/14)
 		12Smooth Pigweed23243
122 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
123 April 9, 2022Amaranthus palmeriUnited States (Idaho) United StatesIdaho202345 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		14Palmer Amaranth27265
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