INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Rescuegrass (Bromus catharticus) is a monocot weed in the Poaceae family. In Argentina this weed first evolved resistance to Group G/9 herbicides in 2017 and infests Fallow, Wheat, and Winter barley. Group G/9 herbicides are known as EPSP synthase inhibitors (Inhibition of EPSP synthase). Research has shown that these particular biotypes are resistant to glyphosate and they may be cross-resistant to other Group G/9 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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Common Name | Rescuegrass | Species | Bromus catharticus | Group | EPSP synthase inhibitors (G/9) | Herbicides | glyphosate | Location | Argentina, Buenos Aires Province | Year | 2017 | Situation(s) | Fallow, Wheat, and Winter barley | Contributors - (Alphabetically) | Marcos Yanniccari | |
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| Greenhouse trials comparing a known susceptible Rescuegrass biotype with this Rescuegrass biotype have been used to confirm resistance. For further information on the tests conducted please contact the local weed scientists that provided this information. |
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| Genetic studies on Group G/9 resistant Rescuegrass 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 |
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| 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. |
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| 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 G/9 resistant Rescuegrass from Argentina please update the database. |
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| Dr CONICET Chacra Experimental Integrada Barrow RN 3 km 487 cc 50 Tres Arroyos, 7500, Buenos Aires Argentina Email Marcos Yanniccari |
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Drag a column header and drop it here to group by that column |
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1
| Argentina | Argentina | | 2017 |
Fallow, Wheat, and Winter barley
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glyphosate
| 48 |
EPSP synthase inhibitors (G/9)
| 338 | Bromus catharticus | Rescuegrass | 17144 |
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PERMISSION MUST BE OBTAINED FIRST if you intend to base a significant portion of a scientific paper on data derived from this site. Citation:
Heap, I. The International Herbicide-Resistant Weed Database. Online.
. Available
www.weedscience.org
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2021
WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.
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