International Survey of Herbicide-Resistant Weeds

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Status of Herbicide Resistance in Venezuela - Aida Ortiz : February, 2015

In Venezuela has encountered resistance to herbicides in weed species

Herbicide Resistant Weeds in Venezuela
Herbicide Resistant Weeds in Venezuela
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Herbicide Resistant Weeds in Venezuela
#SpeciesCommon NameFirst YearSite of Action
1 Echinochloa colonaJunglericeVenezuela 200080 PSII inhibitors - Serine 264 Binders (C1 C2/7)
5149
2 Ischaemum rugosumSaramollagrassVenezuela 200480 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/7)
5552
3 Rottboellia cochinchinensis (=R. exaltata)ItchgrassVenezuela 200480 Inhibition of Acetolactate Synthase (B/2)
5566
4 Echinochloa colonaJunglericeVenezuela 200880 Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
10950
5 Fimbristylis miliaceaGlobe FringerushVenezuela 201080 Inhibition of Acetolactate Synthase (B/2)
5548
6 Sorghum halepenseJohnsongrassVenezuela 201080 Inhibition of Acetolactate Synthase (B/2)
5553
7 Echinochloa colonaJunglericeVenezuela 201080 Multiple Resistance: 3 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Acetolactate Synthase (B/2)
PSII inhibitors - Serine 264 Binders (C1 C2/7)
5555
8 Leptochloa scabraRough SprangletopVenezuela 201380 PSII inhibitors - Serine 264 Binders (C1 C2/7)
6756
9 Cyperus odoratusFragrant FlatsedgeVenezuela 201480 Inhibition of Acetolactate Synthase (B/2)
8920
10 Cyperus iriaRice FlatsedgeVenezuela 201580 Inhibition of Acetolactate Synthase (B/2)
11015
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