INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Herbicide Resistant Annual Bluegrass Globally
(Poa annua)
Herbicide Resistant Annual Bluegrass Globally
(Poa annua)
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Herbicide Resistant Annual Bluegrass Globally
(Poa annua)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Australia (Victoria) AustraliaVictoria2009 Golf courses, and Turf endothall 1 UnknownHRAC Group 27 (Legacy Z)
130Poa annuaAnnual Bluegrass5513
2 Australia (South Australia) AustraliaSouth Australia2017 Golf courses glyphosate 1 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
130Poa annuaAnnual Bluegrass16084
3 Australia (South Australia) AustraliaSouth Australia2017 Golf courses simazine 1 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass16085
4 Australia (South Australia) AustraliaSouth Australia2017 Golf courses endothall 1 UnknownHRAC Group 27 (Legacy Z)
130Poa annuaAnnual Bluegrass16086
5 Australia (South Australia) AustraliaSouth Australia2017 Golf courses propyzamide/pronamide 1 Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
130Poa annuaAnnual Bluegrass16087
6 Australia (South Australia) AustraliaSouth Australia2017 Golf courses bispyribac-sodium, foramsulfuron, iodosulfuron-methyl-Na, and rimsulfuron 1 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
130Poa annuaAnnual Bluegrass16088
7 Australia (Victoria) AustraliaVictoria2017 Golf courses bispyribac-sodium, foramsulfuron, iodosulfuron-methyl-Na, and rimsulfuron 1 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
130Poa annuaAnnual Bluegrass16089
8 Australia (Victoria) AustraliaVictoria2017 Golf courses simazine 1 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass16090
9 Australia (Victoria) AustraliaVictoria2017 Golf courses glyphosate 1 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
130Poa annuaAnnual Bluegrass16091
10 Australia (Victoria) AustraliaVictoria2017 Golf courses propyzamide/pronamide 1 Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
130Poa annuaAnnual Bluegrass16092
11 Australia (New South Wales ) AustraliaNew South Wales 2017 Golf courses bispyribac-sodium, foramsulfuron, iodosulfuron-methyl-Na, and rimsulfuron 1 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
130Poa annuaAnnual Bluegrass16093
12 Australia (New South Wales ) AustraliaNew South Wales 2017 Golf courses simazine 1 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass16094
13 Australia (New South Wales ) AustraliaNew South Wales 2017 Golf courses glyphosate 1 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
130Poa annuaAnnual Bluegrass16095
14 Australia (New South Wales ) AustraliaNew South Wales 2017 Golf courses endothall 1 UnknownHRAC Group 27 (Legacy Z)
130Poa annuaAnnual Bluegrass16096
15 Australia (New South Wales ) AustraliaNew South Wales 2017 Golf courses propyzamide/pronamide 1 Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
130Poa annuaAnnual Bluegrass16097
16 Australia (New South Wales ) AustraliaNew South Wales 2017 Golf courses bispyribac-sodium, endothall, foramsulfuron, glyphosate, iodosulfuron-methyl-Na, propyzamide/pronamide, rimsulfuron, and simazine 1 Multiple Resistance: 5 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
UnknownHRAC Group 27 (Legacy Z)
130Poa annuaAnnual Bluegrass16098
17 Australia (New South Wales ) AustraliaNew South Wales 2017 Golf courses pinoxaden 1 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
130Poa annuaAnnual Bluegrass18189
18 Australia (Victoria) AustraliaVictoria2017 Golf courses pinoxaden 1 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
130Poa annuaAnnual Bluegrass18190
19 BelgiumBelgium 1981 Nurseries, Orchards, and Roadsides simazine 3 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass33
20 BelgiumBelgium 1983 Orchards amitrole 3 Inhibition of Lycopene Cyclase HRAC Group 11 (Legacy F3)
130Poa annuaAnnual Bluegrass38
21 BelgiumBelgium 1993 Hops paraquat 3 PS I Electron Diversion HRAC Group 22 (Legacy D)
130Poa annuaAnnual Bluegrass36
22 Czech RepublicCzech Republic 1988 Orchards, and Railways atrazine, cyanazine, prometryne, and terbutryne 12 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass85
23 FranceFrance 1978 Orchards atrazine 17 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass464
24 FranceFrance 2015 Wheat iodosulfuron-methyl-Na, and mesosulfuron-methyl 17 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
130Poa annuaAnnual Bluegrass18180
25 GermanyGermany 1980 Orchards atrazine 18 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass449
26 JapanJapan 1982 Golf courses, and Turf simazine 25 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass117
27 NetherlandsNetherlands 1981 Orchards simazine 43 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass219
28 New ZealandNew Zealand 2020 Turf haloxyfop-methyl 30 Inhibition of Acetyl CoA Carboxylase HRAC Group 1 (Legacy A)
130Poa annuaAnnual Bluegrass18203
29 NorwayNorway 1996 Nurseries simazine 31 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass388
30 United KingdomUnited Kingdom 1981 Hops paraquat 44 PS I Electron Diversion HRAC Group 22 (Legacy D)
130Poa annuaAnnual Bluegrass359
31 United KingdomUnited Kingdom 1981 Orchards simazine 44 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass366
32 United States (Alabama) United StatesAlabama1980 Pastures simazine 45 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass1166
33 United States (Oregon) United StatesOregon1994 Grass seed ethofumesate 45 Very Long-Chain Fatty Acid Synthesis inhibitorsHRAC Group 16 (Legacy K3 N)
130Poa annuaAnnual Bluegrass334
34 United States (Oregon) United StatesOregon1994 Grass seed diuron 45 PSII inhibitors - Serine 264 Binders HRAC Group 7 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass336
35 United States (Oregon) United StatesOregon1994 Grass seed atrazine 45 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass338
36 United States (North Carolina) United StatesNorth Carolina1995 Golf courses, and Turf simazine 45 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass1060
37 United States (Mississippi) United StatesMississippi1996 Turf atrazine, and simazine 45 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass1187
38 United States (North Carolina) United StatesNorth Carolina1997 Golf courses, and Turf pendimethalin, and prodiamine 45 Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
130Poa annuaAnnual Bluegrass1165
39 United States (Oregon) United StatesOregon2000 Grass seed diuron, and metribuzin 45 Multiple Resistance: 2 Sites of Action
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
PSII inhibitors - Serine 264 Binders HRAC Group 7 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass18181
40 United States (Virginia) United StatesVirginia2001 Golf courses, and Turf simazine 45 PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass5162
41 United States (Tennessee) United StatesTennessee2007 Golf courses, and Turf dithiopyr, pendimethalin, and prodiamine 45 Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
130Poa annuaAnnual Bluegrass5645
42 United States (Missouri) United StatesMissouri2010 Turf glyphosate 45 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
130Poa annuaAnnual Bluegrass5495
43 United States (Tennessee) United StatesTennessee2011 Golf courses, and Turf glyphosate 45 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
130Poa annuaAnnual Bluegrass5596
44 United States (Alabama) United StatesAlabama2012 Turf bispyribac-sodium, foramsulfuron, imazaquin, and trifloxysulfuron-Na 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
130Poa annuaAnnual Bluegrass5644
45 United States (Alabama) United StatesAlabama2012 Turf dithiopyr, pendimethalin, and prodiamine 45 Inhibition of Microtubule Assembly 2HRAC Group 3 (Legacy K1)
130Poa annuaAnnual Bluegrass5695
46 United States (Tennessee) United StatesTennessee2013 Golf courses, and Turf foramsulfuron, simazine, and trifloxysulfuron-Na 45 Multiple Resistance: 2 Sites of Action
Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
130Poa annuaAnnual Bluegrass6765
47 United States (California) United StatesCalifornia2013 Almonds glyphosate 45 Inhibition of Enolpyruvyl Shikimate Phosphate Synthase HRAC Group 9 (Legacy G)
130Poa annuaAnnual Bluegrass7805
48 United States (Mississippi) United StatesMississippi2014 Golf courses foramsulfuron 45 Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
130Poa annuaAnnual Bluegrass10982

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