INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Swollen Fingergrass (Chloris barbata = (C. inflate)) is a monocot weed in the Poaceae family. In Mexico this weed first evolved resistance to Group G/9 herbicides in 2018 and infests Oranges. 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 | Swollen Fingergrass | | Species | Chloris barbata = (C. inflate) | | Group | EPSP synthase inhibitors (G/9) | | Herbicides | glyphosate | | Location | Mexico, Colima | | Year | 2018 | | Situation(s) | Oranges | | Contributors - (Alphabetically) | Hugo Cruz-Hipólito, Rafael De Prado, and Ja Dominguez Valenzuela | |
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| | Greenhouse, and Laboratory trials comparing a known susceptible Swollen Fingergrass biotype with this Swollen Fingergrass 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 Swollen Fingergrass indicate that the inheritance is determined by a one gene trait. 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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| | Studies on the mechanism of resistance of Group G/9 resistant Swollen Fingergrass from Mexico indicate that resistance is due to an altered target site. There may be a note below or an article discussing the mechanism of resistance in the Fact Sheets and Other Literature |
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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 Swollen Fingergrass from Mexico please update the database. |
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| Research Asociate
Universidad De Córdoba
Química Agrícola Y Edafología
Campus Universitario De Rabanales Edif. C-3 3ª Planta
Córdoba, 14002
Spain
Email Hugo Cruz-Hipólito |
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| Research Asociate
Universidad De Cordoba
Qvimica Agricola Y Edafologa
E T S Ingenieros Agronomos
PO Box 119
Cordoba, E-14080, Andalusia
Spain
Email Rafael De Prado |
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| Phd
Universidad Autónoma Chapingo
Parasitología Agrícola
Area De Malezas Departamento De Parasitología Agricola
Texcoco, 56230, Andalusia
Mexico
Email Ja Dominguez Valenzuela |
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| Drag a column header and drop it here to group by that column |
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1
| Mexico | Mexico | | 2018 |
Oranges
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glyphosate
| 29 |
EPSP synthase inhibitors (G/9)
| 53 | Chloris barbata = (C. inflate) | Swollen Fingergrass | 18197 |
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2
| United States (Hawaii) | United States | Hawaii | 1987 |
Roadsides, and Sugarcane for sugar
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ametryn
| 45 |
Photosystem II- Serine 264 Binders
(C1/5)
| 53 | Chloris barbata = (C. inflate) | Swollen Fingergrass | 227 |
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3
| United States (Hawaii) | United States | Hawaii | 1987 |
Roadsides, and Sugarcane for sugar
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diuron
| 45 |
PSII inhibitors - Serine 264 Binders
(C2/7)
| 53 | Chloris barbata = (C. inflate) | Swollen Fingergrass | 228 |
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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
Copyright © 1993-
WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.
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