International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Johnsongrass Globally
(Sorghum halepense)
Herbicide Resistant Johnsongrass Globally
(Sorghum halepense)
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Herbicide Resistant Johnsongrass Globally
(Sorghum halepense)
#CountryFirstYearSituationActive IngredientsSite of Action
1 ArgentinaArgentina 2005 Soybean glyphosate 48 EPSP synthase inhibitors (G/9)
 		166Sorghum halepenseJohnsongrass5271
2 ArgentinaArgentina 2015 Soybean haloxyfop-P-methyl 48 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass10979
3 ArgentinaArgentina 2015 Soybean glyphosate, and haloxyfop-methyl 48 Multiple Resistance: 2 Sites of Action
ACCase inhibitors (A/1)
EPSP synthase inhibitors (G/9)
 		166Sorghum halepenseJohnsongrass10991
4 ChileChile 2009 Corn (maize) nicosulfuron 8 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass5693
5 GreeceGreece 2005 Cotton propaquizafop, and quizalofop-P-ethyl 19 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass5393
6 IsraelIsrael 2006 Cotton fluazifop-P-butyl, and haloxyfop-P-methyl 23 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass5301
7 ItalyItaly 2005 Soybean, and Tomatoes fluazifop-P-butyl, haloxyfop-P-methyl, propaquizafop, and quizalofop-P-ethyl 24 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass5354
8 ItalyItaly 2007 Corn (maize) nicosulfuron 24 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass8905
9 MexicoMexico 2009 Corn (maize) foramsulfuron, nicosulfuron, primisulfuron-methyl, and rimsulfuron 29 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass5475
10 SerbiaSerbia 2014 Corn (maize) imazamox, nicosulfuron, propoxycarbazone-sodium, pyroxsulam, and rimsulfuron 245 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass15065
11 SpainSpain 2015 Corn (maize) nicosulfuron 38 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass11000
12 United States (Mississippi) United StatesMississippi1991 Cotton, and Cropland fenoxaprop-P-ethyl, fluazifop-P-butyl, and quizalofop-P-ethyl 45 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass250
13 United States (Kentucky) United StatesKentucky1991 Soybean fluazifop-P-butyl 45 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass488
14 United States (Mississippi) United StatesMississippi1992 Cotton pendimethalin 45 Microtubule inhibitors (K1/3)
 		166Sorghum halepenseJohnsongrass328
15 United States (Tennessee) United StatesTennessee1995 Cotton, and Soybean fluazifop-P-butyl, and quizalofop-P-ethyl 45 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass1106
16 United States (Virginia) United StatesVirginia1995 Soybean sethoxydim 45 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass1108
17 United States (Louisiana) United StatesLouisiana1997 Cotton clethodim, and fluazifop-P-butyl 45 ACCase inhibitors (A/1)
 		166Sorghum halepenseJohnsongrass1044
18 United States (Texas) United StatesTexas2000 Corn (maize) imazethapyr, and nicosulfuron 45 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass5091
19 United States (West Virginia) United StatesWest Virginia2004 Corn (maize) nicosulfuron 45 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass7775
20 United States (Indiana) United StatesIndiana2005 Corn (maize), and Soybean nicosulfuron 45 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass5282
21 United States (Kentucky) United StatesKentucky2006 Corn (maize) foramsulfuron, nicosulfuron, and primisulfuron-methyl 45 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass7880
22 United States (Arkansas) United StatesArkansas2007 Soybean glyphosate 45 EPSP synthase inhibitors (G/9)
 		166Sorghum halepenseJohnsongrass5344
23 United States (Mississippi) United StatesMississippi2008 Soybean glyphosate 45 EPSP synthase inhibitors (G/9)
 		166Sorghum halepenseJohnsongrass5558
24 United States (Louisiana) United StatesLouisiana2010 Soybean glyphosate 45 EPSP synthase inhibitors (G/9)
 		166Sorghum halepenseJohnsongrass5522
25 VenezuelaVenezuela 2010 Corn (maize) foramsulfuron, iodosulfuron-methyl-sodium, and nicosulfuron 80 ALS inhibitors (B/2)
 		166Sorghum halepenseJohnsongrass5553
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Saturday, July 22, 2017 .  Available  www.weedscience.org
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