International Survey of Herbicide-Resistant Weeds

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Herbicide Resistant Weeds in Spain
Herbicide Resistant Weeds in Spain
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Herbicide Resistant Weeds in Spain
#SpeciesCommon NameFirst YearSite of Action
1 Panicum dichotomiflorumFall PanicumSpain 198138 Photosystem II inhibitors (C1/5)
 		527
2 Amaranthus hybridus (syn: quitensis)Smooth PigweedSpain 198538 Photosystem II inhibitors (C1/5)
 		175
3 Amaranthus blitoidesProstrate PigweedSpain 198638 Photosystem II inhibitors (C1/5)
 		183
4 Amaranthus retroflexusRedroot PigweedSpain 198638 Photosystem II inhibitors (C1/5)
 		187
5 Conyza canadensisHorseweedSpain 198738 Photosystem II inhibitors (C1/5)
 		177
6 Setaria viridisGreen FoxtailSpain 198738 Photosystem II inhibitors (C1/5)
 		178
7 Setaria pumila (=S. glauca)Yellow FoxtailSpain 198738 Photosystem II inhibitors (C1/5)
 		179
8 Solanum nigrumBlack NightshadeSpain 198738 Photosystem II inhibitors (C1/5)
 		180
9 Conyza bonariensisHairy FleabaneSpain 198738 Photosystem II inhibitors (C1/5)
 		181
10 Amaranthus albusTumble PigweedSpain 198738 Photosystem II inhibitors (C1/5)
 		182
11 Setaria faberiGiant FoxtailSpain 198738 Photosystem II inhibitors (C1/5)
 		184
12 Chenopodium albumCommon LambsquartersSpain 198738 Photosystem II inhibitors (C1/5)
 		186
13 Amaranthus cruentusRed AmaranthSpain 198938 Photosystem II inhibitors (C1/5)
 		176
14 Bromus tectorumDowny Brome (Cheatgrass)Spain 199038 PSII inhibitor (Ureas and amides) (C2/7)
 		190
15 Bromus tectorumDowny Brome (Cheatgrass)Spain 199038 Photosystem II inhibitors (C1/5)
 		191
16 Alopecurus myosuroidesBlackgrassSpain 199138 PSII inhibitor (Ureas and amides) (C2/7)
 		188
17 Polygonum lapathifoliumPale SmartweedSpain 199138 Photosystem II inhibitors (C1/5)
 		189
18 Echinochloa crus-galli var. crus-galliBarnyardgrassSpain 199238 Photosystem II inhibitors (C1/5)
 		171
19 Lolium rigidumRigid RyegrassSpain 199238 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
PSII inhibitor (Ureas and amides) (C2/7)
 		172
20 Lolium rigidumRigid RyegrassSpain 199238 ACCase inhibitors (A/1)
 		173
21 Lolium rigidumRigid RyegrassSpain 199238 Photosystem II inhibitors (C1/5)
 		174
22 Setaria verticillataBristly FoxtailSpain 199238 Photosystem II inhibitors (C1/5)
 		436
23 Papaver rhoeasCorn PoppySpain 199338 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Synthetic Auxins (O/4)
 		185
24 Alisma plantago-aquaticaCommon WaterplantainSpain 200038 ALS inhibitors (B/2)
 		5138
25 Cyperus difformisSmallflower Umbrella SedgeSpain 200038 ALS inhibitors (B/2)
 		5140
26 Conyza bonariensisHairy FleabaneSpain 200438 EPSP synthase inhibitors (G/9)
 		5223
27 Conyza canadensisHorseweedSpain 200638 EPSP synthase inhibitors (G/9)
 		5319
28 Lolium perenne ssp. multiflorumItalian RyegrassSpain 200638 EPSP synthase inhibitors (G/9)
 		5331
29 Lolium rigidumRigid RyegrassSpain 200638 EPSP synthase inhibitors (G/9)
 		5332
30 Sinapis albaWhite MustardSpain 200738 ALS inhibitors (B/2)
 		5368
31 Conyza sumatrensisSumatran FleabaneSpain 200938 EPSP synthase inhibitors (G/9)
 		5481
32 Sinapis arvensisWild MustardSpain 201138 ALS inhibitors (B/2)
 		5591
33 Sorghum halepenseJohnsongrassSpain 201538 ALS inhibitors (B/2)
 		11000
34 Alopecurus myosuroidesBlackgrassSpain 201538 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
 		11014
35 Echinochloa crus-galli var. crus-galliBarnyardgrassSpain 201538 ALS inhibitors (B/2)
 		11016
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Wednesday, July 12, 2017 .  Available  www.weedscience.org
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