International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Weeds in Manitoba, Canada.
#YearSpeciesSite of ActionActivesContacts
1 52Green Foxtail1988Setaria viridis
Green Foxtail
Canada
(Manitoba)
ManitobaManitoba Inhibition of Microtubule Assembly 2 (K1/3) Inhibition of Microtubule Assembly 2 (K1/3) ethalfluralin, trifluralin Hugh Beckie, Lyle Friesen
2 57Kochia1988Kochia scoparia
Kochia
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) chlorsulfuron, imazethapyr, metsulfuron-methyl, thifensulfuron-methyl, triasulfuron, tribenuron-methyl Rene Van Acker, Lyle Friesen
3 55Wild Mustard1990Sinapis arvensis
Wild Mustard
Canada
(Manitoba)
ManitobaManitoba Auxin Mimics (O/4) Auxin Mimics (O/4) 2,4-D, dicamba, dichlorprop, MCPA, mecoprop, picloram Lyle Friesen
4 50Wild Oat1990Avena fatua
Wild Oat
Canada
(Manitoba)
ManitobaManitoba Inhibition of Acetyl CoA Carboxylase (A/1) Inhibition of Acetyl CoA Carboxylase (A/1) clethodim, clodinafop-propargyl, diclofop-methyl, fenoxaprop-ethyl, sethoxydim, tralkoxydim Hugh Beckie, Rene Van Acker, Lyle Friesen
5 53Green Foxtail1991Setaria viridis
Green Foxtail
Canada
(Manitoba)
ManitobaManitoba Inhibition of Acetyl CoA Carboxylase (A/1) Inhibition of Acetyl CoA Carboxylase (A/1) diclofop-methyl, fenoxaprop-ethyl, sethoxydim, tralkoxydim Hugh Beckie, Rene Van Acker, Lyle Friesen
6 54Wild Mustard1992Sinapis arvensis
Wild Mustard
Canada
(Manitoba)
ManitobaManitoba Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) ethametsulfuron-methyl, metsulfuron-methyl John O'Donovan, Rene Van Acker, Lyle Friesen
7 5037Green Foxtail1992Setaria viridis
Green Foxtail
Canada
(Manitoba)
Manitoba  Inhibition of Acetyl CoA Carboxylase (A/1), Inhibition of Microtubule Assembly 2 (K1/3) Multiple Resistance: 2 Sites of Action
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Microtubule Assembly 2 (K1/3)
diclofop-methyl, ethalfluralin, fenoxaprop-ethyl, sethoxydim, tralkoxydim, trifluralin Lyle Friesen
8 51Wild Oat1994Avena fatua
Wild Oat
Canada
(Manitoba)
ManitobaManitoba Antimicrotubule mitotic disrupter (Z/25), Inhibition of Acetolactate Synthase (B/2), Inhibition of Acetyl CoA Carboxylase (A/1) Multiple Resistance: 3 Sites of Action
Antimicrotubule mitotic disrupter (Z/25)
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Acetyl CoA Carboxylase (A/1)
fenoxaprop-ethyl, flamprop-methyl, imazamethabenz-methyl, rimsulfuron Hugh Beckie, Rene Van Acker, Lyle Friesen
9 56Wild Mustard1994Sinapis arvensis
Wild Mustard
Canada
(Manitoba)
ManitobaManitoba PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) metribuzin Rene Van Acker, Lyle Friesen
10 476Common Hempnettle1995Galeopsis tetrahit
Common Hempnettle
Canada
(Manitoba)
ManitobaMB Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) metsulfuron-methyl Rene Van Acker, Lyle Friesen
11 5077Wild Oat1997Avena fatua
Wild Oat
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) imazamethabenz-methyl Hugh Beckie
12 5078Wild Oat1997Avena fatua
Wild Oat
Canada
(Manitoba)
Manitoba  Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8) Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8) tri-allate Hugh Beckie
13 5079Wild Oat1997Avena fatua
Wild Oat
Canada
(Manitoba)
Manitoba  Antimicrotubule mitotic disrupter (Z/25), Inhibition of Acetolactate Synthase (B/2), Inhibition of Acetyl CoA Carboxylase (A/1), Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8) Multiple Resistance: 4 Sites of Action
Antimicrotubule mitotic disrupter (Z/25)
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Acetyl CoA Carboxylase (A/1)
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8)
fenoxaprop-ethyl, flamprop-methyl, imazamethabenz-methyl, tri-allate Hugh Beckie
14 5221Green Foxtail2002Setaria viridis
Green Foxtail
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) imazethapyr, sulfosulfuron Hugh Beckie
15 5222Redroot Pigweed2002Amaranthus retroflexus
Redroot Pigweed
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) florasulam Hugh Beckie
16 5624Field Pennycress2008Thlaspi arvense
Field Pennycress
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) thifensulfuron-methyl, tribenuron-methyl Hugh Beckie
17 5629False Cleavers2008Galium spurium
False Cleavers
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) thifensulfuron-methyl, tribenuron-methyl Hugh Beckie
18 5630Common Chickweed2008Stellaria media
Common Chickweed
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) thifensulfuron-methyl, tribenuron-methyl Hugh Beckie
19 5631Powell Amaranth2008Amaranthus powellii
Powell Amaranth
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) thifensulfuron-methyl, tribenuron-methyl Hugh Beckie
20 5625Pale Smartweed2009Polygonum lapathifolium
Pale Smartweed
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) thifensulfuron-methyl, tribenuron-methyl Hugh Beckie
21 9942Kochia2014Kochia scoparia
Kochia
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2), Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)
glyphosate, thifensulfuron-methyl, tribenuron-methyl Hugh Beckie
22 11033Wild Oat2015Avena fatua
Wild Oat
Canada
(Manitoba)
Manitoba  Inhibition of Acetolactate Synthase (B/2), Inhibition of Acetyl CoA Carboxylase (A/1), Inhibition of Protoporphyrinogen Oxidase (E/14), Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15), Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8) Multiple Resistance: 5 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Acetyl CoA Carboxylase (A/1)
Inhibition of Protoporphyrinogen Oxidase (E/14)
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/15)
Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8)
fenoxaprop-ethyl, imazamethabenz-methyl, imazapyr, pyroxasulfone, quizalofop-ethyl, sulfentrazone, tri-allate Linda Hall, Hugh Beckie
Contributing Weed Scientists
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Thursday, December 2, 2021 .  Available  www.weedscience.org
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