INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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 January 25, 2023Stellaria mediaUnited States (California) United StatesCalifornia202245 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
168Common Chickweed24253
2 December 20, 2022Lolium perenne ssp. multiflorumUnited States (North Carolina) United StatesNorth Carolina202245 Multiple Resistance: 4 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PS I Electron Diversion HRAC Group 22 (Legacy D)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
110Italian Ryegrass24251
3 December 4, 2022Amaranthus hybridus (syn: quitensis)ParaguayParaguay 202246 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
12Smooth Pigweed24252
4 November 22, 2022Chenopodium albumUkraineUkraine 2022230 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
47Common Lambsquarters24250
5 November 3, 2022Alopecurus myosuroidesSwitzerlandSwitzerland 201941 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
6Blackgrass20228
6 November 3, 2022Lolium perenne ssp. multiflorumSwitzerlandSwitzerland 202041 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
110Italian Ryegrass24249
7 November 3, 2022Conyza canadensisSwitzerlandSwitzerland 202141 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
61Horseweed24248
8 November 3, 2022Conyza bonariensisSwitzerlandSwitzerland 202041 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
60Hairy Fleabane24247
9 October 24, 2022Panicum dichotomiflorumUnited States (Illinois) United StatesIllinois201945 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
122Fall Panicum24246
10 October 24, 2022Amaranthus tuberculatus (=A. rudis)UruguayUruguay 202273 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
219Tall Waterhemp24245
11 October 24, 2022Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina202245 Inhibition of Glutamine Synthetase HRAC Group 10 (Legacy H)
14Palmer Amaranth24244
12 October 6, 2022Amaranthus powelliiCanada (Ontario) CanadaOntario20197 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Auxin Mimics HRAC Group 4 (Legacy O)
15Powell Amaranth24243
13 October 6, 2022Amaranthus tuberculatus (=A. rudis)Canada (Ontario) CanadaOntario20217 Multiple Resistance: 5 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
Inhibition of Protoporphyrinogen Oxidase HRAC Group 14 (Legacy E)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase HRAC Group 27 (Legacy F2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
219Tall Waterhemp24242
14 July 26, 2022Amaranthus palmeriSouth AfricaSouth Africa 201837 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
14Palmer Amaranth23244
15 July 11, 2022Amaranthus hybridus (syn: quitensis)ArgentinaArgentina 202148 Inhibition of Protoporphyrinogen Oxidase HRAC Group 14 (Legacy E)
12Smooth Pigweed23243
16 July 6, 2022Echinochloa crus-galli var. crus-galliViet NamViet Nam 201774 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Cellulose Synthesis HRAC Group 29 (Legacy L)
79Barnyardgrass23242
17 June 13, 2022Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina202245 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
14Palmer Amaranth23241
18 June 12, 2022Anthriscus caucalisGermanyGermany 201718 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
356Bur Chervil23240
19 April 27, 2022Digitaria sanguinalisArgentinaArgentina 201948 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
77Large Crabgrass23239
20 April 8, 2022Raphanus raphanistrumAustralia (Western Australia) AustraliaWestern Australia20201 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase HRAC Group 27 (Legacy F2)
Auxin Mimics HRAC Group 4 (Legacy O)
141Wild Radish19219
21 March 18, 2022Sorghum halepenseUnited States (Missouri) United StatesMissouri201945 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
166Johnsongrass23238
22 March 14, 2022Cyperus difformisIndiaIndia 201721 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
71Smallflower Umbrella Sedge23236
23 March 11, 2022Poa annuaUnited States (Tennessee) United StatesTennessee201745 Multiple Resistance: 7 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
Inhibition of Protoporphyrinogen Oxidase HRAC Group 14 (Legacy E)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
Inhibition of Glutamine Synthetase HRAC Group 10 (Legacy H)
Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
Inhibition of Cellulose Synthesis HRAC Group 29 (Legacy L)
130Annual Bluegrass23237
24 February 8, 2022Lolium perenne ssp. multiflorumCanada (Ontario) CanadaOntario20217 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
110Italian Ryegrass22236
25 January 27, 2022Amaranthus retroflexusUnited States (North Carolina) United StatesNorth Carolina202045 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Protoporphyrinogen Oxidase HRAC Group 14 (Legacy E)
16Redroot Pigweed22235
26 December 14, 2021Lolium perenne ssp. multiflorumIrelandIreland 202181 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
110Italian Ryegrass21237
27 December 14, 2021Alopecurus myosuroidesIrelandIreland 202181 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
6Blackgrass21236
28 November 23, 2021Tripleurospermum perforatum (=T. inodorum)Czech RepublicCzech Republic 202112 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
116Scentless Chamomile21235
29 October 25, 2021Bromus tectorumCanada (Alberta) CanadaAlberta20217 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
40Downy Brome (Cheatgrass)21234
30 October 8, 2021Zea mays ssp. mexicanaFranceFrance 202017 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
354Mexican teosinte21231
31 October 8, 2021Papaver rhoeasFranceFrance 201517 Auxin Mimics HRAC Group 4 (Legacy O)
123Corn Poppy18176
32 October 8, 2021Ambrosia artemisiifoliaFranceFrance 201317 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
18Common Ragweed21230
33 September 27, 2021Aster squamatusMexicoMexico 202129 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
353Saltmarsh Aster21229
34 September 9, 2021Arabidopsis thalianaUnited States (Virginia) United StatesVirginia201545 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
292Mouse-ear Cress21232
35 August 30, 2021Amaranthus retroflexusUkraineUkraine 2020230 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
16Redroot Pigweed20231
36 August 30, 2021Polygonum pensylvanicumUnited States (Arkansas) United StatesArkansas202045 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
135Pennsylvania Smartweed20230
37 August 30, 2021Amaranthus palmeriUnited States (Arkansas) United StatesArkansas202045 Inhibition of Glutamine Synthetase HRAC Group 10 (Legacy H)
14Palmer Amaranth20229
38 August 16, 2021Digitaria insularisParaguayParaguay 202046 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
239Sourgrass20223
39 August 11, 2021Lolium perenne ssp. multiflorumSwitzerlandSwitzerland 201841 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
110Italian Ryegrass20226
40 August 11, 2021Lolium perenne ssp. multiflorumSwitzerlandSwitzerland 201841 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
110Italian Ryegrass20227
41 August 11, 2021Sorghum halepenseSerbiaSerbia 2018245 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
166Johnsongrass20225
42 August 11, 2021Ambrosia artemisiifoliaSerbiaSerbia 2019245 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
18Common Ragweed20224
43 July 11, 2021Leptochloa fusca spp. fasicularisUnited States (California) United StatesCalifornia202045 Inhibition of Microtubule Assembly HRAC Group 13 (Legacy F4)
355Bearded Sprangletop21233
44 May 5, 2021Chloris radiataColombiaColombia 201910 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
340Radiate Fingergrass19224
45 May 3, 2021Raphanus raphanistrumAustralia (Western Australia) AustraliaWestern Australia20151 Multiple Resistance: 5 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
Phytoene Desaturase inhibitorsHRAC Group 12 (Legacy F1)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase HRAC Group 27 (Legacy F2)
Auxin Mimics HRAC Group 4 (Legacy O)
141Wild Radish19223
46 April 29, 2021Amaranthus tuberculatus (=A. rudis)United States (North Carolina) United StatesNorth Carolina202045 Multiple Resistance: 5 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
Inhibition of Protoporphyrinogen Oxidase HRAC Group 14 (Legacy E)
Inhibition of Hydroxyphenyl Pyruvate Dioxygenase HRAC Group 27 (Legacy F2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
219Tall Waterhemp19222
47 March 13, 2021Amaranthus palmeriUnited States (Tennessee) United StatesTennessee202045 Multiple Resistance: 2 Sites of Action
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
Auxin Mimics HRAC Group 4 (Legacy O)
14Palmer Amaranth19221
48 March 10, 2021Salsola tragusArgentinaArgentina 201948 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
147Russian-thistle19218
49 March 9, 2021Oryza sativa var. sylvaticaTurkeyTurkey 202071 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
242Red Rice19217
50 February 26, 2021Arctotheca calendulaAustralia (Western Australia) AustraliaWestern Australia20201 Multiple Resistance: 3 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Phytoene Desaturase inhibitorsHRAC Group 12 (Legacy F1)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
21Capeweed19216
51 February 23, 2021Rapistrum rugosumAustralia (New South Wales ) AustraliaNew South Wales 20211 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
142Turnipweed19215
52 February 23, 2021Echinochloa crus-galli var. crus-galliAustralia (New South Wales ) AustraliaNew South Wales 20211 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
79Barnyardgrass19214
53 February 4, 2021Euphorbia heterophyllaBrazilBrazil 20195 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
87Wild Poinsettia19213
54 February 4, 2021Digitaria insularisBrazilBrazil 20205 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
239Sourgrass19212
55 February 1, 2021Echinochloa crus-galli var. crus-galliBrazilBrazil 20205 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
79Barnyardgrass19211
56 January 25, 2021Bromus sterilisCzech RepublicCzech Republic 201712 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
289Poverty Brome18211
57 December 16, 2020Bromus rubensSpainSpain 201838 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
324Red Brome18210
58 November 26, 2020Bromus madritensisSpainSpain 201838 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
352Compact Brome18209
59 November 13, 2020Eleusine indicaItalyItaly 201924 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
81Goosegrass18208
60 October 20, 2020Amaranthus tuberculatus (=A. rudis)IsraelIsrael 201923 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
219Tall Waterhemp18207
61 October 7, 2020Amaranthus palmeriUnited States (Connecticut) United StatesConnecticut201945 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
14Palmer Amaranth18206
62 October 7, 2020Xanthium strumariumKazakhstanKazakhstan 2015157 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
174Common cocklebur18205
63 October 1, 2020Apera spica-ventiBelgiumBelgium 20193 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
20Silky Windgrass18199
64 September 23, 2020Amaranthus palmeriSpainSpain 201638 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
14Palmer Amaranth18204
65 September 21, 2020Poa annuaNew ZealandNew Zealand 202030 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
130Annual Bluegrass18203
66 September 21, 2020Lolium perenne ssp. multiflorumNew ZealandNew Zealand 201430 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
110Italian Ryegrass18202
67 September 21, 2020Lolium perenneNew ZealandNew Zealand 201430 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
111Perennial Ryegrass18201
68 September 10, 2020Avena fatuaIrelandIreland 201981 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
28Wild Oat18200
69 July 3, 2020Conyza canadensisFranceFrance 201917 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
61Horseweed18198
70 June 22, 2020Eleusine indicaMexicoMexico 201629 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
81Goosegrass18194
71 June 22, 2020Chloris barbata = (C. inflate)MexicoMexico 201829 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
53Swollen Fingergrass18197
72 June 22, 2020Parthenium hysterophorusMexicoMexico 201729 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
124Ragweed Parthenium18196
73 June 22, 2020Amaranthus palmeriMexicoMexico 201629 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
14Palmer Amaranth18195
74 June 22, 2020Sorghum halepenseAustralia (Queensland) AustraliaQueensland20191 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
166Johnsongrass18193
75 June 22, 2020Hordeum murinum ssp. leporinumSpainSpain 201838 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
98Hare Barley18192
76 May 20, 2020Eleusine indicaUnited States (Alabama) United StatesAlabama201945 PS I Electron Diversion HRAC Group 22 (Legacy D)
81Goosegrass18191
77 January 22, 2020Poa annuaAustralia (Victoria) AustraliaVictoria20171 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
130Annual Bluegrass18190
78 January 22, 2020Poa annuaAustralia (New South Wales ) AustraliaNew South Wales 20171 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
130Annual Bluegrass18189
79 January 22, 2020Avena fatuaAustralia (Queensland) AustraliaQueensland20181 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
28Wild Oat18187
80 November 28, 2019Amaranthus hybridus (syn: quitensis)BrazilBrazil 20185 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
12Smooth Pigweed18184
81 November 28, 2019Amaranthus palmeriUnited States (North Carolina) United StatesNorth Carolina201645 Inhibition of Hydroxyphenyl Pyruvate Dioxygenase HRAC Group 27 (Legacy F2)
14Palmer Amaranth18188
82 November 28, 2019Secale cerealeUnited States (Colorado) United StatesColorado201845 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
351Feral Rye18182
83 November 28, 2019Echinochloa crus-galli var. crus-galliArgentinaArgentina 201948 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
79Barnyardgrass18183
84 November 22, 2019Avena sterilis ssp. ludovicianaAustralia (New South Wales ) AustraliaNew South Wales 20181 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
30Sterile oat18186
85 November 22, 2019Sonchus asperUnited KingdomUnited Kingdom 201644 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
163Spiny Sowthistle18185
86 November 19, 2019Poa annuaFranceFrance 201517 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
130Annual Bluegrass18180
87 November 19, 2019Poa trivialisFranceFrance 201217 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
350Roughstalk Bluegrass18179
88 November 19, 2019Rumex obtusifoliusFranceFrance 201717 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
349Broad-Leaved Dock18178
89 November 14, 2019Brassica rapa (=B. campestris)ArgentinaArgentina 201548 Auxin Mimics HRAC Group 4 (Legacy O)
36Birdsrape Mustard18175
90 November 4, 2019Eleusine indicaColombiaColombia 201610 Multiple Resistance: 2 Sites of Action
PS I Electron Diversion HRAC Group 22 (Legacy D)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
81Goosegrass18177
91 October 24, 2019Capsella bursa-pastorisNorwayNorway 201931 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
41Shepherd's-purse18169
92 October 3, 2019Papaver rhoeasGreeceGreece 200219 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Auxin Mimics HRAC Group 4 (Legacy O)
123Corn Poppy18174
93 October 1, 2019Carduus acanthoidesArgentinaArgentina 201948 Multiple Resistance: 2 Sites of Action
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
Auxin Mimics HRAC Group 4 (Legacy O)
348Plumeless Thistle18173
94 September 24, 2019Oryza sativa var. sylvaticaColombiaColombia 201810 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
242Red Rice18170
95 September 2, 2019Rapistrum rugosumSpainSpain 201838 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
142Turnipweed18171
96 August 5, 2019Lithospermum arvenseChinaChina 20199 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
341Corn Gromwell18168
97 July 31, 2019Lolium perenne ssp. multiflorumUnited States (Oklahoma) United StatesOklahoma201745 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
110Italian Ryegrass18167
98 July 31, 2019Chloris radiataColombiaColombia 201910 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
340Radiate Fingergrass18165
99 July 31, 2019Ischaemum rugosumColombiaColombia 200910 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
99Saramollagrass18166

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