select Select by Site of Action - (Inhibition of dihydroorotate dehydrogenase (DHODH) ) A (Inhibition of Acetyl CoA Carboxylase ) B (Inhibition of Acetolactate Synthase ) C1 (PSII inhibitors - Serine 264 Binders ) C1 C2 (PSII inhibitors - Serine 264 Binders ) C3 (PSII inhibitors - Histidine 215 Binders ) D (PS I Electron Diversion ) E (Inhibition of Protoporphyrinogen Oxidase ) F1 (Phytoene Desaturase inhibitors) F2 (Inhibition of Hydroxyphenyl Pyruvate Dioxygenase ) F3 (Inhibition of Lycopene Cyclase ) F4 (Inhibition of Deoxy-D-Xylulose Phosphate Synthase) G (Inhibition of Enolpyruvyl Shikimate Phosphate Synthase ) H (Inhibition of Glutamine Synthetase ) I (Inhibition of Dihydropteroate Synthase) K1 (Inhibition of Microtubule Assembly) K2 (Inhibition of Microtubule Organization ) K3 N (Very Long-Chain Fatty Acid Synthesis inhibitors) L (Inhibition of Cellulose Synthesis ) M (Uncouplers) N (Inhibition of Very Long-Chain Fatty Acid Synthesis ) O (Auxin Mimics ) P (Auxin Transport inhibitor) Q (Inhibition of Fatty Acid Thioesterase ) R (Inhibition of Serine-Threonine Protein Phosphatase ) S (Inhibition of Solanesyl Diphosphate Synthase ) T (Inhibition of Homogentisate Solanesyltransferase ) Z (Antimicrotubule mitotic disrupter) Z (Cell elongation inhibitors) Z (Nucleic acid inhibitors) Z (Unknown)

Weeds Resistant to Auxin Mimics (O/4) by species and country
Weeds Resistant to Auxin Mimics (O/4) by species and country Drag a column header and drop it here to group by that column

Weeds Resistant to Auxin Mimics (O/4) by species and country

#	Species	Country	First Year	WeedID	Species	CommonName	HRAC	MOAID	WSSA	HerbicideGroup
1	Amaranthus hybridus (syn: quitensis) Smooth Pigweed	2016 - Argentina *Multiple - 2 SOA's 2016 - Argentina	2016	12	Amaranthus hybridus (syn: quitensis)	Smooth Pigweed	O	24	4	Auxin Mimics
2	Amaranthus palmeri Palmer Amaranth	2015 - United States (Kansas) *Multiple - 5 SOA's 2018 - United States (Kansas) 2020 - United States (Tennessee) *Multiple - 2 SOA's 2021 - United States (Kansas) *Multiple - 6 SOA's 2023 - United States (Arkansas)	2015	14	Amaranthus palmeri	Palmer Amaranth	O	24	4	Auxin Mimics
3	Amaranthus powellii Powell Amaranth	2019 - Canada (Ontario) *Multiple - 2 SOA's	2019	15	Amaranthus powellii	Powell Amaranth	O	24	4	Auxin Mimics
4	Amaranthus tuberculatus (=A. rudis) Tall Waterhemp	2009 - United States (Nebraska) *Multiple - 3 SOA's 2016 - United States (Illinois) *Multiple - 5 SOA's 2021 - United States (Iowa)	2009	219	Amaranthus tuberculatus (=A. rudis)	Tall Waterhemp	O	24	4	Auxin Mimics
5	Ambrosia artemisiifolia Common Ragweed	2022 - United States (Michigan)	2022	18	Ambrosia artemisiifolia	Common Ragweed	O	24	4	Auxin Mimics
6	Arctotheca calendula Capeweed	2015 - Australia (South Australia)	2015	21	Arctotheca calendula	Capeweed	O	24	4	Auxin Mimics
7	Brassica rapa (=B. campestris) Birdsrape Mustard	2015 - Argentina 2021 - Mexico *Multiple - 3 SOA's	2015	36	Brassica rapa (=B. campestris)	Birdsrape Mustard	O	24	4	Auxin Mimics
8	Carduus acanthoides Plumeless Thistle	2019 - Argentina *Multiple - 2 SOA's	2019	348	Carduus acanthoides	Plumeless Thistle	O	24	4	Auxin Mimics
9	Carduus nutans Musk Thistle	1981 - New Zealand	1981	42	Carduus nutans	Musk Thistle	O	24	4	Auxin Mimics
10	Carduus pycnocephalus Italian Thistle	1997 - New Zealand	1997	43	Carduus pycnocephalus	Italian Thistle	O	24	4	Auxin Mimics
11	Centaurea cyanus Cornflower	2012 - Poland	2012	277	Centaurea cyanus	Cornflower	O	24	4	Auxin Mimics
12	Centaurea solstitialis Yellow Starthistle	1988 - United States (Washington)	1988	44	Centaurea solstitialis	Yellow Starthistle	O	24	4	Auxin Mimics
13	Centaurea stoebe ssp. micranthos Spotted knapweed	2013 - Canada (British Columbia)	2013	334	Centaurea stoebe ssp. micranthos	Spotted knapweed	O	24	4	Auxin Mimics
14	Chenopodium album Common Lambsquarters	2005 - New Zealand	2005	47	Chenopodium album	Common Lambsquarters	O	24	4	Auxin Mimics
15	Cirsium arvense Canada thistle	1979 - Sweden 1985 - Hungary	1979	55	Cirsium arvense	Canada thistle	O	24	4	Auxin Mimics
16	Commelina diffusa Spreading Dayflower	1957 - United States (Hawaii)	1957	56	Commelina diffusa	Spreading Dayflower	O	24	4	Auxin Mimics
17	Conyza sumatrensis Sumatran Fleabane	2017 - Brazil *Multiple - 5 SOA's	2017	65	Conyza sumatrensis	Sumatran Fleabane	O	24	4	Auxin Mimics
18	Daucus carota Wild Carrot	1957 - Canada (Ontario) 1993 - United States (Michigan) 1994 - United States (Ohio)	1957	76	Daucus carota	Wild Carrot	O	24	4	Auxin Mimics
19	Descurainia sophia Flixweed	2011 - China	2011	237	Descurainia sophia	Flixweed	O	24	4	Auxin Mimics
20	Digitaria ischaemum Smooth Crabgrass	2002 - United States (California)	2002	177	Digitaria ischaemum	Smooth Crabgrass	O	24	4	Auxin Mimics
21	Echinochloa colona Junglerice	2000 - Colombia	2000	78	Echinochloa colona	Junglerice	O	24	4	Auxin Mimics
22	Echinochloa crus-galli var. crus-galli Barnyardgrass	1998 - United States (Louisiana) 1999 - Brazil 1999 - United States (Arkansas) *Multiple - 2 SOA's 2000 - China 2009 - Brazil *Multiple - 2 SOA's 2013 - Uruguay 2018 - Brazil *Multiple - 3 SOA's	1998	79	Echinochloa crus-galli var. crus-galli	Barnyardgrass	O	24	4	Auxin Mimics
23	Echinochloa crus-galli var. zelayensis Gulf Cockspur Grass	2013 - China	2013	305	Echinochloa crus-galli var. zelayensis	Gulf Cockspur Grass	O	24	4	Auxin Mimics
24	Echinochloa crus-pavonis Gulf Cockspur	1999 - Brazil 2024 - China	1999	193	Echinochloa crus-pavonis	Gulf Cockspur	O	24	4	Auxin Mimics
25	Fimbristylis miliacea Globe Fringerush	1989 - Malaysia	1989	90	Fimbristylis miliacea	Globe Fringerush	O	24	4	Auxin Mimics
26	Galeopsis tetrahit Common Hempnettle	1998 - Canada (Alberta)	1998	91	Galeopsis tetrahit	Common Hempnettle	O	24	4	Auxin Mimics
27	Galium aparine Catchweed Bedstraw	2014 - China 2016 - Iran 2017 - Iran *Multiple - 2 SOA's	2014	272	Galium aparine	Catchweed Bedstraw	O	24	4	Auxin Mimics
28	Galium spurium False Cleavers	1996 - Canada (Alberta) *Multiple - 2 SOA's	1996	93	Galium spurium	False Cleavers	O	24	4	Auxin Mimics
29	Hirschfeldia incana Shortpod Mustard	2016 - Argentina *Multiple - 2 SOA's	2016	328	Hirschfeldia incana	Shortpod Mustard	O	24	4	Auxin Mimics
30	Kochia scoparia Kochia	1994 - United States (Montana) 1995 - United States (North Dakota) 1997 - United States (Idaho) 1999 - United States (Colorado) 2009 - United States (Nebraska) 2013 - United States (Kansas) *Multiple - 4 SOA's 2013 - United States (Kansas) *Multiple - 2 SOA's 2015 - Canada (Saskatchewan) *Multiple - 2 SOA's 2017 - Canada (Alberta) *Multiple - 3 SOA's 2022 - Spain *Multiple - 3 SOA's	1994	101	Kochia scoparia	Kochia	O	24	4	Auxin Mimics
31	Lactuca serriola Prickly Lettuce	2007 - United States (Washington)	2007	102	Lactuca serriola	Prickly Lettuce	O	24	4	Auxin Mimics
32	Limnocharis flava Sawah Flowering Rush	1995 - Indonesia 1998 - Malaysia *Multiple - 2 SOA's	1995	104	Limnocharis flava	Sawah Flowering Rush	O	24	4	Auxin Mimics
33	Limnophila erecta Marshweed	2002 - Malaysia *Multiple - 2 SOA's	2002	226	Limnophila erecta	Marshweed	O	24	4	Auxin Mimics
34	Papaver rhoeas Corn Poppy	1993 - Spain *Multiple - 2 SOA's 1998 - Italy *Multiple - 2 SOA's 1998 - Italy 2002 - Greece *Multiple - 2 SOA's 2015 - France 2016 - France *Multiple - 2 SOA's 2018 - Portugal *Multiple - 2 SOA's 2025 - Morocco *Multiple - 2 SOA's 2025 - Tunisia *Multiple - 2 SOA's	1993	123	Papaver rhoeas	Corn Poppy	O	24	4	Auxin Mimics
35	Plantago lanceolata Buckhorn Plantain	2016 - United States (Indiana)	2016	220	Plantago lanceolata	Buckhorn Plantain	O	24	4	Auxin Mimics
36	Ranunculus acris Tall Buttercup	1988 - New Zealand 2010 - New Zealand *Multiple - 2 SOA's	1988	140	Ranunculus acris	Tall Buttercup	O	24	4	Auxin Mimics
37	Raphanus raphanistrum Wild Radish	1999 - Australia (Western Australia) 2006 - Australia (South Australia) *Multiple - 3 SOA's 2009 - Australia (Victoria) *Multiple - 2 SOA's 2010 - Australia (Western Australia) *Multiple - 4 SOA's 2011 - Australia (Victoria) 2013 - Australia (New South Wales ) 2015 - Australia (Western Australia) *Multiple - 5 SOA's 2020 - Australia (Western Australia) *Multiple - 3 SOA's	1999	141	Raphanus raphanistrum	Wild Radish	O	24	4	Auxin Mimics
38	Sagittaria montevidensis California Arrowhead	2023 - Brazil	2023	146	Sagittaria montevidensis	California Arrowhead	O	24	4	Auxin Mimics
39	Sinapis arvensis Wild Mustard	1990 - Canada (Manitoba) 2008 - Turkey *Multiple - 2 SOA's	1990	158	Sinapis arvensis	Wild Mustard	O	24	4	Auxin Mimics
40	Sisymbrium orientale Oriental Mustard	2005 - Australia (South Australia) *Multiple - 2 SOA's	2005	159	Sisymbrium orientale	Oriental Mustard	O	24	4	Auxin Mimics
41	Soliva sessilis Lawn Burweed	1999 - New Zealand	1999	199	Soliva sessilis	Lawn Burweed	O	24	4	Auxin Mimics
42	Sonchus oleraceus Annual Sowthistle	2015 - Australia (South Australia) 2015 - Australia (Victoria)	2015	164	Sonchus oleraceus	Annual Sowthistle	O	24	4	Auxin Mimics
43	Sphenoclea zeylanica Gooseweed	1983 - Philippines 1995 - Malaysia 2000 - Thailand	1983	167	Sphenoclea zeylanica	Gooseweed	O	24	4	Auxin Mimics
44	Stellaria media Common Chickweed	1985 - United Kingdom 2010 - China	1985	168	Stellaria media	Common Chickweed	O	24	4	Auxin Mimics

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