International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Weeds in Quebec, Canada.
#YearSpeciesSite of ActionActivesContacts
1 433Birdsrape Mustard1977Brassica rapa (=B. campestris)
Birdsrape Mustard
Canada
(Quebec)
QuebecQuebec PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Hugh Beckie
2 17126Redroot Pigweed1980Amaranthus retroflexus
Redroot Pigweed
Canada
(Quebec)
Quebec  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine, metribuzin Danielle Bernier
3 17132Common Lambsquarters1980Chenopodium album
Common Lambsquarters
Canada
(Quebec)
Quebec  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Danielle Bernier
4 17128Common Ragweed1999Ambrosia artemisiifolia
Common Ragweed
Canada
(Quebec)
Quebec  PSII inhibitors - Serine 264 Binders (C1 C2/5), PSII inhibitors - Serine 264 Binders (C1 C2/7) Multiple Resistance: 2 Sites of Action
PSII inhibitors - Serine 264 Binders (C1 C2/5)
PSII inhibitors - Serine 264 Binders (C1 C2/7)
linuron, metribuzin Francois Tardif
5 5064Common Ragweed1999Ambrosia artemisiifolia
Common Ragweed
Canada
(Quebec)
Quebec  PSII inhibitors - Serine 264 Binders (C1 C2/7) PSII inhibitors - Serine 264 Binders (C1 C2/7) linuron Francois Tardif, Hugh Beckie
6 5126Redroot Pigweed2001Amaranthus retroflexus
Redroot Pigweed
Canada
(Quebec)
Quebec  PSII inhibitors - Serine 264 Binders (C1 C2/7) PSII inhibitors - Serine 264 Binders (C1 C2/7) linuron Francois Tardif
7 17127Common Ragweed2007Ambrosia artemisiifolia
Common Ragweed
Canada
(Quebec)
Quebec  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) cloransulam-methyl, imazethapyr Francois Tardif, Marie-Josée Simard
8 17131Common Lambsquarters2008Chenopodium album
Common Lambsquarters
Canada
(Quebec)
Quebec  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) thifensulfuron-methyl Francois Tardif
9 17125Redroot Pigweed2009Amaranthus retroflexus
Redroot Pigweed
Canada
(Quebec)
Quebec  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) imazethapyr Francois Tardif
10 17129Wild Oat2012Avena fatua
Wild Oat
Canada
(Quebec)
Quebec  Inhibition of Acetyl CoA Carboxylase (A/1) Inhibition of Acetyl CoA Carboxylase (A/1) fenoxaprop-ethyl, tralkoxydim Francois Tardif, Danielle Bernier, Marie-Josée Simard
11 17123Powell Amaranth2012Amaranthus powellii
Powell Amaranth
Canada
(Quebec)
Quebec  PSII inhibitors - Serine 264 Binders (C1 C2/7) PSII inhibitors - Serine 264 Binders (C1 C2/7) linuron Francois Tardif
12 17124Powell Amaranth2012Amaranthus powellii
Powell Amaranth
Canada
(Quebec)
Quebec  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) imazethapyr Francois Tardif
13 17130Birdsrape Mustard2017Brassica rapa (=B. campestris)
Birdsrape Mustard
Canada
(Quebec)
Quebec  Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) glyphosate Martin Laforest, Marie-Josée Simard
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Monday, November 29, 2021 .  Available  www.weedscience.org
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