INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Weeds Resistant to Inhibition of Lycopene Cyclase HRAC Group 34 (Legacy F3)
by species and country
Weeds Resistant to Inhibition of Lycopene Cyclase HRAC Group 34 (Legacy F3)
by species and country
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Weeds Resistant to Inhibition of Lycopene Cyclase HRAC Group 34 (Legacy F3)
by species and country
#SpeciesCountryFirst Year
1 Agrostis stolonifera
Creeping Bentgrass 		1986 - Belgium
19863Agrostis stoloniferaCreeping BentgrassF31134Inhibition of Lycopene Cyclase
2 Lolium perenne
Perennial Ryegrass 		2015 - New Zealand *Multiple - 3 SOA's
 		2015111Lolium perennePerennial RyegrassF31134Inhibition of Lycopene Cyclase
3 Lolium perenne ssp. multiflorum
Italian Ryegrass 		2015 - New Zealand *Multiple - 3 SOA's
 		2015110Lolium perenne ssp. multiflorumItalian RyegrassF31134Inhibition of Lycopene Cyclase
4 Lolium rigidum
Rigid Ryegrass 		1988 - Australia (Western Australia)
2008 - Australia (South Australia) *Multiple - 2 SOA's
 		1988112Lolium rigidumRigid RyegrassF31134Inhibition of Lycopene Cyclase
5 Poa annua
Annual Bluegrass 		1983 - Belgium
1983130Poa annuaAnnual BluegrassF31134Inhibition of Lycopene Cyclase
6 Polygonum aviculare
Prostrate Knotweed 		1984 - Belgium
1984131Polygonum aviculareProstrate KnotweedF31134Inhibition of Lycopene Cyclase
HRAC Global Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Wednesday, September 23, 2026.  Available at  www.weedscience.org

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