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 inhibitor (Ureas and amides) (C2/7)
5149
2 Ischaemum rugosumSaramollagrassVenezuela 200480 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
5552
3 Rottboellia cochinchinensis (=R. exaltata)ItchgrassVenezuela 200480 ALS inhibitors (B/2)
5566
4 Echinochloa colonaJunglericeVenezuela 200880 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
EPSP synthase inhibitors (G/9)
10950
5 Fimbristylis miliaceaGlobe FringerushVenezuela 201080 ALS inhibitors (B/2)
5548
6 Sorghum halepenseJohnsongrassVenezuela 201080 ALS inhibitors (B/2)
5553
7 Echinochloa colonaJunglericeVenezuela 201080 Multiple Resistance: 3 Sites of Action
ACCase inhibitors (A/1)
ALS inhibitors (B/2)
PSII inhibitor (Ureas and amides) (C2/7)
5555
8 Leptochloa scabraRough SprangletopVenezuela 201380 PSII inhibitor (Ureas and amides) (C2/7)
6756
9 Cyperus odoratusFragrant FlatsedgeVenezuela 201480 ALS inhibitors (B/2)
8920
10 Cyperus iriaRice FlatsedgeVenezuela 201580 ALS inhibitors (B/2)
11015
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Saturday, August 27, 2016 .  Available  www.weedscience.org
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