International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Weeds in Brazil
Herbicide Resistant Weeds in Brazil
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Herbicide Resistant Weeds in Brazil
#SpeciesCommon NameFirst YearSite of Action
1 Bidens pilosaHairy BeggarticksBrazil 19935 ALS inhibitors (B/2)
42
2 Euphorbia heterophyllaWild PoinsettiaBrazil 19935 ALS inhibitors (B/2)
5294
3 Bidens subalternansGreater BeggarticksBrazil 19965 ALS inhibitors (B/2)
1195
4 Urochloa plantaginea (=Brachiaria plantaginea)AlexandergrassBrazil 19975 ACCase inhibitors (A/1)
498
5 Sagittaria montevidensisCalifornia ArrowheadBrazil 19995 ALS inhibitors (B/2)
1179
6 Echinochloa crus-pavonisGulf CockspurBrazil 19995 Synthetic Auxins (O/4)
1190
7 Echinochloa crus-galli var. crus-galliBarnyardgrassBrazil 19995 Synthetic Auxins (O/4)
1191
8 Cyperus difformisSmallflower Umbrella SedgeBrazil 20005 ALS inhibitors (B/2)
5118
9 Fimbristylis miliaceaGlobe FringerushBrazil 20015 ALS inhibitors (B/2)
5117
10 Raphanus sativusRadishBrazil 20015 ALS inhibitors (B/2)
5201
11 Digitaria ciliarisSouthern CrabgrassBrazil 20025 ACCase inhibitors (A/1)
5214
12 Lolium perenne ssp. multiflorumItalian RyegrassBrazil 20035 EPSP synthase inhibitors (G/9)
5205
13 Eleusine indicaGoosegrassBrazil 20035 ACCase inhibitors (A/1)
5245
14 Euphorbia heterophyllaWild PoinsettiaBrazil 20045 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
PPO inhibitors (E/14)
5215
15 Parthenium hysterophorusRagweed PartheniumBrazil 20045 ALS inhibitors (B/2)
5238
16 Conyza bonariensisHairy FleabaneBrazil 20055 EPSP synthase inhibitors (G/9)
5264
17 Conyza canadensisHorseweedBrazil 20055 EPSP synthase inhibitors (G/9)
5273
18 Oryza sativa var. sylvaticaRed RiceBrazil 20065 ALS inhibitors (B/2)
5372
19 Bidens subalternansGreater BeggarticksBrazil 20065 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Photosystem II inhibitors (C1/5)
5382
20 Digitaria insularisSourgrassBrazil 20085 EPSP synthase inhibitors (G/9)
5350
21 Echinochloa crus-galli var. crus-galliBarnyardgrassBrazil 20095 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Synthetic Auxins (O/4)
5484
22 Sagittaria montevidensisCalifornia ArrowheadBrazil 20095 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
PSII inhibitors (Nitriles) (C3/6)
5588
23 Lolium perenne ssp. multiflorumItalian RyegrassBrazil 20105 ALS inhibitors (B/2)
5546
24 Lolium perenne ssp. multiflorumItalian RyegrassBrazil 20105 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
EPSP synthase inhibitors (G/9)
5547
25 Conyza sumatrensisSumatran FleabaneBrazil 20105 EPSP synthase inhibitors (G/9)
5577
26 Avena fatuaWild OatBrazil 20105 ACCase inhibitors (A/1)
5601
27 Conyza sumatrensisSumatran FleabaneBrazil 20115 ALS inhibitors (B/2)
5647
28 Conyza sumatrensisSumatran FleabaneBrazil 20115 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
EPSP synthase inhibitors (G/9)
5648
29 Amaranthus retroflexusRedroot PigweedBrazil 20115 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Photosystem II inhibitors (C1/5)
5734
30 Amaranthus viridisSlender AmaranthBrazil 20115 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Photosystem II inhibitors (C1/5)
5735
31 Amaranthus retroflexusRedroot PigweedBrazil 20125 ALS inhibitors (B/2)
5733
32 Raphanus raphanistrumWild RadishBrazil 20135 ALS inhibitors (B/2)
7895
33 Ageratum conyzoidesTropical WhiteweedBrazil 20135 ALS inhibitors (B/2)
9947
34 Chloris elataTall Windmill GrassBrazil 20145 EPSP synthase inhibitors (G/9)
8918
35 Amaranthus retroflexusRedroot PigweedBrazil 20145 PPO inhibitors (E/14)
13033
36 Cyperus iriaRice FlatsedgeBrazil 20145 ALS inhibitors (B/2)
13040
37 Amaranthus palmeriPalmer AmaranthBrazil 20155 EPSP synthase inhibitors (G/9)
11009
38 Echium plantagineumPatersons CurseBrazil 20155 ALS inhibitors (B/2)
12033
39 Echinochloa crus-galli var. crus-galliBarnyardgrassBrazil 20155 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
Cellulose inhibitors (L/26)
15069
40 Eleusine indicaGoosegrassBrazil 20165 EPSP synthase inhibitors (G/9)
13039
41 Amaranthus palmeriPalmer AmaranthBrazil 20165 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
EPSP synthase inhibitors (G/9)
13042
42 Digitaria insularisSourgrassBrazil 20165 ACCase inhibitors (A/1)
13043
43 Bidens pilosaHairy BeggarticksBrazil 20165 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Photosystem II inhibitors (C1/5)
14053
44 Lolium perenne ssp. multiflorumItalian RyegrassBrazil 20165 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
15057
45 Lolium perenne ssp. multiflorumItalian RyegrassBrazil 20175 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
EPSP synthase inhibitors (G/9)
15063
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Saturday, April 29, 2017 .  Available  www.weedscience.org
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