International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
select

Status of Herbicide Resistance in Portugal - Isabel Calha : January, 2014

In Portugal the most serious problems with herbicide resistance are the recent cases of glyphosate resistance in perennial crops.

Herbicide Resistant Weeds in Portugal
Herbicide Resistant Weeds in Portugal
Drag a column header and drop it here to group by that column
Herbicide Resistant Weeds in Portugal
#SpeciesCommon NameFirst YearSite of Action
1 Alisma plantago-aquaticaCommon WaterplantainPortugal 199534 Inhibition of Acetolactate Synthase (B/2)
 		169
2 Chenopodium albumCommon LambsquartersPortugal 200334 PSII inhibitors - Serine 264 Binders (C1 C2/5)
 		5227
3 Conyza bonariensisHairy FleabanePortugal 201034 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		5539
4 Conyza canadensisHorseweedPortugal 201134 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		7824
5 Lolium perennePerennial RyegrassPortugal 201334 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		7825
6 Echinochloa phyllopogon (=E. oryzicola)Late WatergrassPortugal 201534 Inhibition of Acetolactate Synthase (B/2)
 		27294
7 Echinochloa crus-galli var. crus-galliBarnyardgrassPortugal 201534 Inhibition of Acetolactate Synthase (B/2)
 		28264
8 Echinochloa crus-galli var. crus-galliBarnyardgrassPortugal 201834 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		28265
9 Papaver rhoeasCorn PoppyPortugal 201834 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Auxin Mimics (O/4)
 		28267
10 Papaver rhoeasCorn PoppyPortugal 201834 Inhibition of Acetolactate Synthase (B/2)
 		28271
11 Lolium perenne ssp. multiflorumItalian RyegrassPortugal 201934 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
 		28266
12 Echinochloa phyllopogon (=E. oryzicola)Late WatergrassPortugal 202034 Inhibition of Acetyl CoA Carboxylase (A/1)
 		28268
13 Echinochloa phyllopogon (=E. oryzicola)Late WatergrassPortugal 202034 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
 		28269
14 Cyperus difformisSmallflower Umbrella SedgePortugal 202334 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Histidine 215 Binders (C3/6)
 		28270
PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site.
Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Thursday, October 31, 2024 .  Available  www.weedscience.org
Copyright © 1993- 2024 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.