<b>HRAC Group 2</b> <font size='2'> (Legacy B) </font> resistant Alisma plantago-aquatica from Turkey

INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE

HRAC GROUP 2 (LEGACY B) RESISTANT COMMON WATERPLANTAIN
(Alisma plantago-aquatica)

Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)

Turkey, Black Sea Trache

INTRODUCTION		COMMON WATERPLANTAIN
Common Waterplantain (Alisma plantago-aquatica) is a monocot weed in the Alismataceae family. In Turkey this weed first evolved resistance to Group 2 (Legacy B) herbicides in 2009 and infests Rice. Group 2 (Legacy B) herbicides are known as Inhibition of Acetolactate Synthase (Inhibition of Acetolactate Synthase ). Research has shown that these particular biotypes are resistant to azimsulfuron, bensulfuron-methyl, and penoxsulam and they may be cross-resistant to other Group 2 (Legacy B) 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.

QUIK STATS (last updated Jan 29, 2015 )
Common Name	Common Waterplantain
Species	Alisma plantago-aquatica
Group	Inhibition of Acetolactate Synthase HRAC Group 2 (Legacy B)
Herbicides	azimsulfuron, bensulfuron-methyl, and penoxsulam
Location	Turkey, Black Sea Trache
Year	2009
Situation(s)	Rice
Contributors - (Alphabetically)	Emine Kaya Altop, and Hüsrev Mennan
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ACADEMIC ASPECTS

Confirmation Tests

Field, Greenhouse, and Laboratory trials comparing a known susceptible Common Waterplantain biotype with this Common Waterplantain 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 2 resistant Common Waterplantain indicate that the inheritance is determined by a dominant, nuclear trait. 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 2 (Legacy B) resistant Common Waterplantain from Turkey please update the database.

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CONTRIBUTING WEED SCIENTISTS

EMINE KAYA ALTOP

Weed Scientist Ondokuz Mayis University Department Of Plant Protection Faculty of Agriculture Samsun, 55139, Kurupelit/Samsun Turkey Email Emine Kaya Altop

HÜSREV MENNAN

Prof. Dr. University Of Ondokuzmayýs Department Of Plant Protection Atakum Samsun, 55319, Kurupelit/Samsun Turkey Email Hüsrev Mennan

ACKNOWLEDGEMENTS
The Herbicide Resistance Action Committee, The Weed Science Society of America, and weed scientists in Turkey have been instrumental in providing you this information. Particular thanks is given to Emine Kaya Altop, and Hüsrev Mennan for providing detailed information.

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Herbicide Resistant Common Waterplantain Globally
(Alisma plantago-aquatica)

Country

FirstYear

Situation

Active Ingredients

Site of Action

Chile

2005

Rice

bensulfuron-methyl