INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE
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Tall Windmill Grass (Chloris elata) is a monocot weed in the Poaceae family. In Brazil this weed first evolved resistance to Group 9 (Legacy G) herbicides in 2014 and infests Soybean. Group 9 (Legacy G) herbicides are known as Inhibition of Enolpyruvyl Shikimate Phosphate Synthase
(Inhibition of EPSP synthase). Research has shown that these particular biotypes are resistant to glyphosate and they may be cross-resistant to other Group 9 (Legacy G) 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 | Tall Windmill Grass | | Species | Chloris elata | | Group | Inhibition of Enolpyruvyl Shikimate Phosphate Synthase
HRAC Group 9 (Legacy G)
| | Herbicides | glyphosate | | Location | Brazil | | Year | 2014 | | Situation(s) | Soybean | | Contributors - (Alphabetically) | Caio Brunharo, Pedro Christoffoleti, Todd Gaines, Marcel Sereguin Cabral de Melo, Marcelo Nicolai, and Scott Nissen | |
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| | Greenhouse trials comparing a known susceptible Tall Windmill Grass biotype with this Tall Windmill Grass 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 HRAC Group 9 resistant Tall Windmill Grass 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 9 (Legacy G) resistant Tall Windmill Grass from Brazil please update the database. |
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| Student
University of California at Davis
Plant and Environmental Sciences
One Shields Avenue
Davis, 95616, California
United States
Email Caio Brunharo |
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| Associate Professor III
Universidade de Sao Paulo
Crop Science Department
ESALQ - USP - LPV - Av. Padua Dias 11 - C. Postal 09
Piracicaba, 13418-900, São Paulo
Brazil
Email Pedro Christoffoleti
Web : Web Site Link |
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| Assistant Professor
Colorado State University
Bioagricultural Sciences and Pest Management
1177 Campus Delivery
Fort Collins, 80523, Colorado
United States
Email Todd Gaines
Web : Web Site Link |
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| Graduate Student Phd
University Of Sao Paulo
Crop Science
A438 Plant& Soil Science Building
Department Of Horticulture,
Piracicaba, 13418-900, Sao Paulo
Brazil
Email Marcelo Nicolai
Web : Web Site Link |
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| Professor and Extension Specialist
Colorado State University
Weed Science
Office: 115 Weed Lab
Fort Collins , 80523, Colorado
United States
Email Scott Nissen
Web : Web Site Link |
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| Drag a column header and drop it here to group by that column |
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1
| Brazil | Brazil | | 2014 |
Soybean
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glyphosate
| 5 |
Inhibition of Enolpyruvyl Shikimate Phosphate Synthase
( HRAC Group 9 (Legacy G)
| 316 | Chloris elata | Tall Windmill Grass | 8918 |
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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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