International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
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Herbicide Resistant Weeds in Michigan, United States.
#YearSpeciesSite of ActionActivesContacts
1 5084Common Lambsquarters1975Chenopodium album
Common Lambsquarters
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine, metribuzin, simazine James Kells, Chad Lee, Steven Gower
2 5180Common Groundsel1990Senecio vulgaris
Common Groundsel
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Donald Penner, Steven Gower
3 5181Common Ragweed1990Ambrosia artemisiifolia
Common Ragweed
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Donald Penner, Steven Gower
4 378Common Purslane1991Portulaca oleracea
Common Purslane
United States
(Michigan)
MichiganMI PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine, linuron Bernard Zandstra, Joseph G. Masabni, Steven Gower
5 505Wild Carrot1993Daucus carota
Wild Carrot
United States
(Michigan)
MichiganMI Auxin Mimics (O/4) Auxin Mimics (O/4) 2,4-D James Kells, Jeff Stachler
6 1115Common Ragweed1998Ambrosia artemisiifolia
Common Ragweed
United States
(Michigan)
MichiganMI Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) cloransulam-methyl, imazamox, imazethapyr Paul Schmitzer, Steven Gower
7 5179Tall Waterhemp2000Amaranthus tuberculatus (=A. rudis)
Tall Waterhemp
United States
(Michigan)
Michigan  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) chlorimuron-ethyl, imazethapyr, thifensulfuron-methyl Steven Gower
8 5176Powell Amaranth2001Amaranthus powellii
Powell Amaranth
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine, diuron Steven Gower
9 5177Redroot Pigweed2001Amaranthus retroflexus
Redroot Pigweed
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine, diuron Steven Gower
10 5178Ladysthumb2001Polygonum persicaria
Ladysthumb
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine, simazine Steven Gower
11 5133Common Lambsquarters2001Chenopodium album
Common Lambsquarters
United States
(Michigan)
Michigan  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) imazamox, thifensulfuron-methyl Donald Penner, Steven Gower
12 5170Smooth Pigweed2002Amaranthus hybridus (syn: quitensis)
Smooth Pigweed
United States
(Michigan)
Michigan  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) chlorimuron-ethyl, imazamox, thifensulfuron-methyl Steven Gower
13 5172Horseweed2002Conyza canadensis
Horseweed
United States
(Michigan)
Michigan  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) chlorimuron-ethyl, cloransulam-methyl Steven Gower
14 5173Horseweed2002Conyza canadensis
Horseweed
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine, diuron, simazine Steven Gower
15 5174Horseweed2002Conyza canadensis
Horseweed
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) diuron Steven Gower
16 5291Halberdleaf Orach2003Atriplex patula
Halberdleaf Orach
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Steven Gower
17 5286Eastern Black Nightshade2004Solanum ptycanthum
Eastern Black Nightshade
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Steven Gower
18 5288Lateflowering Goosefoot2004Chenopodium album var. striatum (=C. strictum var. glaucophyllum)
Lateflowering Goosefoot
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Steven Gower
19 5289Velvetleaf2004Abutilon theophrasti
Velvetleaf
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) atrazine Steven Gower
20 5287Kochia2005Kochia scoparia
Kochia
United States
(Michigan)
Michigan  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) imazamox, triflusulfuron-methyl Steven Gower
21 5290Giant Foxtail2006Setaria faberi
Giant Foxtail
United States
(Michigan)
Michigan  Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetolactate Synthase (B/2) foramsulfuron, imazethapyr, nicosulfuron Steven Gower
22 5312Horseweed2007Conyza canadensis
Horseweed
United States
(Michigan)
Michigan  Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) glyphosate Steven Gower
23 5557Palmer Amaranth2011Amaranthus palmeri
Palmer Amaranth
United States
(Michigan)
Michigan  Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) glyphosate Christy Sprague
24 5736Prostrate Pigweed2012Amaranthus blitoides
Prostrate Pigweed
United States
(Michigan)
Michigan  PSII inhibitors - Serine 264 Binders (C1 C2/5) PSII inhibitors - Serine 264 Binders (C1 C2/5) terbacil Bernard Zandstra, Rick Boydston (Retired)
25 17106Common Ragweed2016Ambrosia artemisiifolia
Common Ragweed
United States
(Michigan)
Michigan  Inhibition of Acetolactate Synthase (B/2), Inhibition of Protoporphyrinogen Oxidase (E/14) Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase (B/2)
Inhibition of Protoporphyrinogen Oxidase (E/14)
cloransulam-methyl, fomesafen Erin Hill
26 27277Common Ragweed2022Ambrosia artemisiifolia
Common Ragweed
United States
(Michigan)
Michigan  Auxin Mimics (O/4) Auxin Mimics (O/4) clopyralid Erin Hill
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Monday, October 7, 2024 .  Available  www.weedscience.org
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