INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
select
select
Herbicide Resistant Powell Amaranth Globally
(Amaranthus powellii)
Herbicide Resistant Powell Amaranth Globally
(Amaranthus powellii)
Drag a column header and drop it here to group by that column
Herbicide Resistant Powell Amaranth Globally
(Amaranthus powellii)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Canada (Ontario) CanadaOntario1977 Corn (maize) atrazine, and metribuzin 7 Photosystem II inhibitors (C1/5)
 		15Amaranthus powelliiPowell Amaranth1158
2 Canada (Ontario) CanadaOntario1998 Corn (maize), Cropland, and Soybean imazethapyr, and thifensulfuron-methyl 7 ALS inhibitors (B/2)
 		15Amaranthus powelliiPowell Amaranth1159
3 Canada (Ontario) CanadaOntario1998 Corn (maize), Soybean, and Wheat atrazine, imazethapyr, and metribuzin 7 Multiple Resistance: 2 Sites of Action
ALS inhibitors (B/2)
Photosystem II inhibitors (C1/5)
 		15Amaranthus powelliiPowell Amaranth5049
4 Canada (Ontario) CanadaOntario1999 Carrots atrazine, linuron, monolinuron, and prometryn 7 Multiple Resistance: 2 Sites of Action
Photosystem II inhibitors (C1/5)
PSII inhibitor (Ureas and amides) (C2/7)
 		15Amaranthus powelliiPowell Amaranth5048
5 Canada (Manitoba) CanadaManitoba2008 Beans, and Wheat thifensulfuron-methyl, and tribenuron-methyl 7 ALS inhibitors (B/2)
 		15Amaranthus powelliiPowell Amaranth5631
6 Canada (Quebec) CanadaQuebec2012 Carrots linuron 7 PSII inhibitor (Ureas and amides) (C2/7)
 		15Amaranthus powelliiPowell Amaranth17123
7 Canada (Quebec) CanadaQuebec2012 Soybean imazethapyr 7 ALS inhibitors (B/2)
 		15Amaranthus powelliiPowell Amaranth17124
8 Czech RepublicCzech Republic 1989 Orchards atrazine, cyanazine, prometryn, simazine, and terbutryn 12 Photosystem II inhibitors (C1/5)
 		15Amaranthus powelliiPowell Amaranth78
9 FranceFrance 1982 Corn (maize) atrazine 17 Photosystem II inhibitors (C1/5)
 		15Amaranthus powelliiPowell Amaranth452
10 SwitzerlandSwitzerland 1986 Corn (maize) atrazine 41 Photosystem II inhibitors (C1/5)
 		15Amaranthus powelliiPowell Amaranth197
11 United States (Washington) United StatesWashington1992 Mint terbacil 45 Photosystem II inhibitors (C1/5)
 		15Amaranthus powelliiPowell Amaranth331
12 United States (Ohio) United StatesOhio1996 Soybean imazaquin 45 ALS inhibitors (B/2)
 		15Amaranthus powelliiPowell Amaranth1100
13 United States (Michigan) United StatesMichigan2001 Asparagus, and Nurseries atrazine, and diuron 45 Multiple Resistance: 2 Sites of Action
Photosystem II inhibitors (C1/5)
PSII inhibitor (Ureas and amides) (C2/7)
 		15Amaranthus powelliiPowell Amaranth5176
PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site. Citation:
Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Monday, March 1, 2021 .  Available  www.weedscience.org Copyright © 1993- 2021 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.