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The frequency of herbicide-resistant wild oat (Avena spp.) populations remains stable in Western Australian cropping fields.
- Source :
-
Crop & Pasture Science . 2016, Vol. 67 Issue 5, p520-527. 8p. - Publication Year :
- 2016
-
Abstract
- Avena is a problematic weed of cropping regions of southern Australia and many areas of the world. In 2010, a random survey was conducted across 14 million hectares of the Western Australian grain belt to monitor the change in herbicide resistance levels by comparing resistance frequency results with a survey conducted in 2005. Screening Avena populations with herbicides commonly used to control this weed revealed that 48% of Avena populations displayed resistance to the commonly used acetyl-Co A carboxylase-inhibiting herbicides, which was lower than that found in 2005 (71%). The broad-spectrum herbicides glyphosate and paraquat provided good control of all Avena populations. Resistance to acetolactate synthase-inhibiting herbicides and to flamprop were detected for the first time in Western Australia in this survey. Therefore, a wide range of weed management options that target all phases of the cropping program are needed to sustain these cropping systems in the future. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HERBICIDE resistance
*WILD oat
*AGRICULTURE
Subjects
Details
- Language :
- English
- ISSN :
- 18360947
- Volume :
- 67
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Crop & Pasture Science
- Publication Type :
- Academic Journal
- Accession number :
- 115816298
- Full Text :
- https://doi.org/10.1071/CP15295