International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Common cocklebur Globally
(Xanthium strumarium)
Herbicide Resistant Common cocklebur Globally
(Xanthium strumarium)
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Herbicide Resistant Common cocklebur Globally
(Xanthium strumarium)
#CountryFirstYearSituationActive IngredientsSite of Action
1 United States (South Carolina) United StatesSouth Carolina1985 Cotton DSMA, and MSMA 45 Nucleic acid inhibitors (Z/17)
174Xanthium strumariumCommon cocklebur265
2 United States (Alabama) United StatesAlabama1988 Cotton DSMA, and MSMA 45 Nucleic acid inhibitors (Z/17)
174Xanthium strumariumCommon cocklebur224
3 United States (Mississippi) United StatesMississippi1989 Soybean imazaquin, and imazethapyr 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur251
4 United States (Arkansas) United StatesArkansas1989 Cotton, and Cropland MSMA 45 Nucleic acid inhibitors (Z/17)
174Xanthium strumariumCommon cocklebur404
5 United States (Tennessee) United StatesTennessee1991 Cotton DSMA, and MSMA 45 Nucleic acid inhibitors (Z/17)
174Xanthium strumariumCommon cocklebur1104
6 United States (Louisiana) United StatesLouisiana1992 Cotton MSMA 45 Nucleic acid inhibitors (Z/17)
174Xanthium strumariumCommon cocklebur1045
7 United States (Missouri) United StatesMissouri1992 Soybean chlorimuron-ethyl, and imazaquin 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur1080
8 United States (Tennessee) United StatesTennessee1992 Soybean imazaquin 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur1105
9 United States (Minnesota) United StatesMinnesota1994 Soybean imazethapyr 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur249
10 United States (Mississippi) United StatesMississippi1994 Cotton DSMA, and MSMA 45 Nucleic acid inhibitors (Z/17)
174Xanthium strumariumCommon cocklebur254
11 United States (North Carolina) United StatesNorth Carolina1994 Cotton DSMA, and MSMA 45 Nucleic acid inhibitors (Z/17)
174Xanthium strumariumCommon cocklebur260
12 United States (Arkansas) United StatesArkansas1995 Cropland, and Soybean imazaquin 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur401
13 United States (Iowa) United StatesIowa1995 Soybean chlorimuron-ethyl, and imazethapyr 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur1062
14 United States (Oklahoma) United StatesOklahoma1996 Soybean imazethapyr 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur1068
15 United States (Kansas) United StatesKansas1997 Soybean chlorimuron-ethyl, and imazethapyr 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur1041
16 United States (Maryland) United StatesMaryland1998 Unspecified chlorimuron-ethyl, imazaquin, and imazethapyr 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur1086
17 United States (Illinois) United StatesIllinois1998 Corn (maize), and Soybean chlorimuron-ethyl, and imazethapyr 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur7858
18 United States (Ohio) United StatesOhio1999 Soybean chlorimuron-ethyl, and cloransulam-methyl 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur1197
19 United States (North Carolina) United StatesNorth Carolina1999 Soybean chlorimuron-ethyl, cloransulam-methyl, imazapyr, primisulfuron-methyl, and pyrithiobac-sodium 45 ALS inhibitors (B/2)
174Xanthium strumariumCommon cocklebur7820
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Thursday, March 30, 2017 .  Available  www.weedscience.org
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