International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
HRAC GROUP 5 (LEGACY C1 C2) RESISTANT BLACK NIGHTSHADE
(Solanum nigrum)


PSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)

Poland
INTRODUCTION BLACK NIGHTSHADE
Black Nightshade (Solanum nigrum) is a dicot weed in the Solanaceae family.  In Poland this weed first evolved resistance to Group 5 (Legacy C1 C2) herbicides in 1995 and infests Orchards.   Group 5 (Legacy C1 C2) herbicides are known as PSII inhibitors - Serine 264 Binders (Inhbition of Photosynthesis at PSll - Serine 264 Binders ).  Research has shown that these particular biotypes are resistant to atrazine and they may be cross-resistant to other Group 5 (Legacy C1 C2) herbicides.

The 'Group' letters/numbers that you see throughout this web site refer to the classification of herbicides by their site of action. To see a full list of herbicides and HRAC herbicide classifications click here.

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QUIK STATS (last updated Sep 15, 2000 )

Common NameBlack Nightshade
SpeciesSolanum nigrum
GroupPSII inhibitors - Serine 264 Binders HRAC Group 5 (Legacy C1 C2)
Herbicidesatrazine
LocationPoland
Year1995
Situation(s)Orchards
Contributors - (Alphabetically)Kazimierz Adamczewski 
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NOTES ABOUT THIS BIOTYPE

GENERAL

G. Gadamski
Gadamski, G, D Ciarka, and Gawronski, S. W. 1996. Molecular survey of Polish resistant biotypes of weeds. Second International Weed Control Congress, Cophenhagen 1996.

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ACADEMIC ASPECTS

Confirmation Tests

Greenhouse, and Laboratory trials comparing a known susceptible Black Nightshade biotype with this Black Nightshade biotype have been used to confirm resistance. For further information on the tests conducted please contact the local weed scientists that provided this information.
 
Genetics

Genetic studies on HRAC Group 5 resistant Black Nightshade have not been reported to the site.  There may be a note below or an article discussing the genetics of this biotype in the Fact Sheets and Other Literature
 
Mechanism of Resistance

The mechanism of resistance for this biotype is either unknown or has not been entered in the database.  If you know anything about the mechanism of resistance for this biotype then please update the database.
 
Relative Fitness

There is no record of differences in fitness or competitiveness of these resistant biotypes when compared to that of normal susceptible biotypes.  If you have any information pertaining to the fitness of Group 5 (Legacy C1 C2) resistant Black Nightshade from Poland please update the database.
 
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CONTRIBUTING WEED SCIENTISTS

KAZIMIERZ ADAMCZEWSKI
Professor
Institute Of Plant Protection - National Research Institute
Depart. Of Weed Science
Str. Wladyslawa Wegorka 20
Poznań, 60-318, Poznań
Poland
Email Kazimierz Adamczewski

ACKNOWLEDGEMENTS

The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Poland have been instrumental in providing you this information. Particular thanks is given to Kazimierz Adamczewski for providing detailed information.
Herbicide Resistant Black Nightshade Globally
(Solanum nigrum)
Herbicide Resistant Black Nightshade Globally
(Solanum nigrum)
Drag a column header and drop it here to group by that column
Herbicide Resistant Black Nightshade Globally
(Solanum nigrum)
#CountryFirstYearSituationActive IngredientsSite of Action
1 Australia (Queensland) AustraliaQueensland2015 Sugarcane for sugar, and Vegetables paraquat 1 PS I Electron Diversion ( HRAC Group 22 (Legacy D)
162Solanum nigrumBlack Nightshade11025
2 BelgiumBelgium 1981 Corn (maize), and Roadsides atrazine 3 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade31
3 Czech RepublicCzech Republic 1999 Corn (maize) atrazine 12 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade5051
4 FranceFrance 1979 Cropland atrazine 17 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade472
5 GermanyGermany 1980 Corn (maize) atrazine 18 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade439
6 ItalyItaly 1978 Corn (maize), and Cropland atrazine 24 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade113
7 MalaysiaMalaysia 1990 Vegetables paraquat 28 PS I Electron Diversion ( HRAC Group 22 (Legacy D)
162Solanum nigrumBlack Nightshade135
8 NetherlandsNetherlands 1981 Corn (maize) atrazine 43 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade218
9 New ZealandNew Zealand 1999 Corn (maize) atrazine, cyanazine, prometryne, and terbuthylazine 30 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade5106
10 New ZealandNew Zealand 2009 Sweet potato paraquat 30 PS I Electron Diversion ( HRAC Group 22 (Legacy D)
162Solanum nigrumBlack Nightshade5731
11 PolandPoland 1995 Orchards atrazine 33 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade376
12 SpainSpain 1987 Corn (maize) atrazine 38 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade180
13 SwitzerlandSwitzerland 1983 Cropland, and Pastures atrazine 41 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade207
14 United KingdomUnited Kingdom 1983 Corn (maize) simazine 44 PSII inhibitors - Serine 264 Binders ( HRAC Group 5 (Legacy C1 C2)
162Solanum nigrumBlack Nightshade364
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