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Herbicide Resistant Weeds in Victoria, Australia.

#	ResistID		Year	Species	Country	StateName	State	MOAs	Site of Action	Actives	Contacts
1	19	Smooth Barley	1984	Hordeum murinum ssp. glaucum Smooth Barley	Australia (Victoria)	Victoria	VIC	PS I Electron Diversion (D/22)	PS I Electron Diversion (D/22)	diquat, paraquat	Christopher Preston
2	5042	Rigid Ryegrass	1984	Lolium rigidum Rigid Ryegrass	Australia (Victoria)	Victoria		Inhibition of Acetolactate Synthase (B/2), Inhibition of Acetyl CoA Carboxylase (A/1), Inhibition of Microtubule Assembly 2 (K1/3)	Multiple Resistance: 3 Sites of Action Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetyl CoA Carboxylase (A/1) Inhibition of Microtubule Assembly 2 (K1/3)	chlorsulfuron, diclofop-methyl, fluazifop-butyl, metsulfuron-methyl, quizalofop-ethyl, sethoxydim, trifluralin	Christopher Preston
3	22	Capeweed	1986	Arctotheca calendula Capeweed	Australia (Victoria)	Victoria	VIC	PS I Electron Diversion (D/22)	PS I Electron Diversion (D/22)	diquat	Christopher Preston
4	18	Hare Barley	1988	Hordeum murinum ssp. leporinum Hare Barley	Australia (Victoria)	Victoria	VIC	PS I Electron Diversion (D/22)	PS I Electron Diversion (D/22)	diquat, paraquat	Christopher Preston
5	17	Squirreltail Fescue	1990	Vulpia bromoides Squirreltail Fescue	Australia (Victoria)	Victoria	VIC	PS I Electron Diversion (D/22)	PS I Electron Diversion (D/22)	diquat, paraquat	Christopher Preston
6	380	Rigid Ryegrass	1996	Lolium rigidum Rigid Ryegrass	Australia (Victoria)	Victoria	VIC	Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	glyphosate	Jim Pratley, Christopher Preston
7	5363	Rigid Ryegrass	1999	Lolium rigidum Rigid Ryegrass	Australia (Victoria)	Victoria		Inhibition of Acetolactate Synthase (B/2), Inhibition of Acetyl CoA Carboxylase (A/1), Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9), Inhibition of Microtubule Assembly 2 (K1/3)	Multiple Resistance: 4 Sites of Action Inhibition of Acetolactate Synthase (B/2) Inhibition of Acetyl CoA Carboxylase (A/1) Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9) Inhibition of Microtubule Assembly 2 (K1/3)	chlorsulfuron, diclofop-methyl, glyphosate, trifluralin	Christopher Preston
8	5467	Ripgut Brome	1999	Bromus diandrus Ripgut Brome	Australia (Victoria)	Victoria		Inhibition of Acetyl CoA Carboxylase (A/1)	Inhibition of Acetyl CoA Carboxylase (A/1)	clethodim, fluazifop-butyl, haloxyfop-methyl, quizalofop-ethyl, tepraloxydim	Christopher Preston, Peter Boutsalis, John Broster
9	5189	Serrated Tussock	2002	Nassella trichotoma Serrated Tussock	Australia (Victoria)	Victoria		Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/26)	Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/26)	flupropanate	Christopher Preston
10	5190	Burning Nettle	2002	Urtica urens Burning Nettle	Australia (Victoria)	Victoria		PSII inhibitors - Serine 264 Binders (C1 C2/5)	PSII inhibitors - Serine 264 Binders (C1 C2/5)	atrazine, prometryne, simazine	Christopher Preston
11	7841	Squirreltail Fescue	2009	Vulpia bromoides Squirreltail Fescue	Australia (Victoria)	Victoria		PSII inhibitors - Serine 264 Binders (C1 C2/5)	PSII inhibitors - Serine 264 Binders (C1 C2/5)	simazine	Peter Boutsalis
12	5513	Annual Bluegrass	2009	Poa annua Annual Bluegrass	Australia (Victoria)	Victoria		Unknown (Z/27)	Unknown (Z/27)	endothall	Christopher Preston, Peter Boutsalis
13	5516	Prickly Lettuce	2009	Lactuca serriola Prickly Lettuce	Australia (Victoria)	Victoria		Inhibition of Acetolactate Synthase (B/2)	Inhibition of Acetolactate Synthase (B/2)	chlorsulfuron, metsulfuron-methyl	Christopher Preston, Peter Boutsalis
14	7845	Wild Radish	2009	Raphanus raphanistrum Wild Radish	Australia (Victoria)	Victoria		Auxin Mimics (O/4), Inhibition of Acetolactate Synthase (B/2)	Multiple Resistance: 2 Sites of Action Auxin Mimics (O/4) Inhibition of Acetolactate Synthase (B/2)	2,4-D, chlorsulfuron, metosulam	Christopher Preston, Peter Boutsalis
15	7842	Oriental Mustard	2010	Sisymbrium orientale Oriental Mustard	Australia (Victoria)	Victoria		Inhibition of Acetolactate Synthase (B/2)	Inhibition of Acetolactate Synthase (B/2)	chlorsulfuron, metosulam	Christopher Preston, Peter Boutsalis
16	7844	Annual Sowthistle	2010	Sonchus oleraceus Annual Sowthistle	Australia (Victoria)	Victoria		Inhibition of Acetolactate Synthase (B/2)	Inhibition of Acetolactate Synthase (B/2)	chlorsulfuron	Christopher Preston, Peter Boutsalis
17	7846	Wild Radish	2011	Raphanus raphanistrum Wild Radish	Australia (Victoria)	Victoria		Auxin Mimics (O/4)	Auxin Mimics (O/4)	2,4-D	Christopher Preston, Peter Boutsalis
18	5603	Oriental Mustard	2011	Sisymbrium orientale Oriental Mustard	Australia (Victoria)	Victoria		Phytoene Desaturase inhibitors (F1/12)	Phytoene Desaturase inhibitors (F1/12)	diflufenican	Christopher Preston, Peter Boutsalis
19	5712	Oriental Mustard	2011	Sisymbrium orientale Oriental Mustard	Australia (Victoria)	Victoria		PSII inhibitors - Serine 264 Binders (C1 C2/5)	PSII inhibitors - Serine 264 Binders (C1 C2/5)	atrazine	Christopher Preston, Peter Boutsalis
20	7838	Little seed Canary grass	2012	Phalaris minor Little seed Canary grass	Australia (Victoria)	Victoria		Inhibition of Acetyl CoA Carboxylase (A/1)	Inhibition of Acetyl CoA Carboxylase (A/1)	clodinafop-propargyl	Christopher Preston, Peter Boutsalis
21	11021	Windmill Grass	2015	Chloris truncata Windmill Grass	Australia (Victoria)	Victoria		Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	glyphosate	Christopher Preston
22	11022	Prickly Lettuce	2015	Lactuca serriola Prickly Lettuce	Australia (Victoria)	Victoria		Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	glyphosate	Christopher Preston
23	11023	Rigid Ryegrass	2015	Lolium rigidum Rigid Ryegrass	Australia (Victoria)	Victoria		Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8)	Very Long-Chain Fatty Acid Synthesis inhibitors (K3 N/8)	tri-allate	Christopher Preston
24	15056	Annual Sowthistle	2015	Sonchus oleraceus Annual Sowthistle	Australia (Victoria)	Victoria		Auxin Mimics (O/4)	Auxin Mimics (O/4)	2,4-D	Christopher Preston, Peter Boutsalis
25	16089	Annual Bluegrass	2017	Poa annua Annual Bluegrass	Australia (Victoria)	Victoria		Inhibition of Acetolactate Synthase (B/2)	Inhibition of Acetolactate Synthase (B/2)	bispyribac-sodium, foramsulfuron, iodosulfuron-methyl-Na, rimsulfuron	Peter Boutsalis
26	16090	Annual Bluegrass	2017	Poa annua Annual Bluegrass	Australia (Victoria)	Victoria		PSII inhibitors - Serine 264 Binders (C1 C2/5)	PSII inhibitors - Serine 264 Binders (C1 C2/5)	simazine	Peter Boutsalis
27	16091	Annual Bluegrass	2017	Poa annua Annual Bluegrass	Australia (Victoria)	Victoria		Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	Inhibition of Enolpyruvyl Shikimate Phosphate Synthase (G/9)	glyphosate	Peter Boutsalis
28	16092	Annual Bluegrass	2017	Poa annua Annual Bluegrass	Australia (Victoria)	Victoria		Inhibition of Microtubule Assembly 2 (K1/3)	Inhibition of Microtubule Assembly 2 (K1/3)	propyzamide/pronamide	Peter Boutsalis
29	18190	Annual Bluegrass	2017	Poa annua Annual Bluegrass	Australia (Victoria)	Victoria		Inhibition of Acetyl CoA Carboxylase (A/1)	Inhibition of Acetyl CoA Carboxylase (A/1)	pinoxaden	Christopher Preston, Peter Boutsalis, Rajesh Barua

Contributing Weed Scientists

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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Tuesday, October 19, 2021 .  Available  www.weedscience.org
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