Quantifying herbicide resistance in modern farming systems Griffith region

2012

Research organisatons
Funding source

Trial details

Researcher(s) Barry Haskins
Year(s) 2012
Contributor Ag Grow Agronomy and Research Pty Ltd
Trial location(s) Griffith, NSW
Merriwagga, NSW
Rankins Springs, NSW
Temora, NSW
Quantifying herbicide resistance in modern farming systems Griffith region locations
Aims
  • Quantify current levels of herbicide resistance in annual ryegrass and common sow thistle across key herbicide groups in dryland and irrigated farming systems in the Griffith region of NSW.
  • Collect site specific information to categorise levels of risk for developing herbicide resistance for various farming systems, based on rotational history and farming practices.
  • Assess the ability of growers and advisers to predict the resistance status of each sample.
Key messages
  • Results showed 100% of the ryegrass samples and 22% of the sow thistle samples were resistant or developing resistance to at least one herbicide, with multiple resistance common in ryegrass.
  • Growers and advisers were accurate 74% of the time when predicting ryegrass resistance. This reduced to 65% for post emergent herbicides.
  • No-till continuous cropping rotations hosted higher resistance levels and often to more herbicides than less intensive rotations including pasture. However, in many cases, samples from paddocks that have had minimal herbicides often showed resistance to multiple herbicides.
  • Cross resistance between Logran and Hussar in ryegrass was lower than expected.
Lead research organisation Grains Research and Development Corporation
Host research organisation Ag Grow Agronomy and Research Pty Ltd
Trial funding source GRDC AGG00001
Related program Regional Cropping Solutions Network
Acknowledgments

This project would not have been initiated without the involvement of NSW DPI District Agronomists and management staff. The technical expertise in establishing collection and testing protocols, and resistance testing was performed by John Broster, Graham Centre. The involvement of Tegan Muirhead (NSW DPI) in help collecting and collating samples was greatly appreciated. Ag Grow Agronomy and Research would like to formally acknowledge all farmers involved in the project, and agronomists John Ronan and Heath McWhirter (Elders), Peter Hill and Thane Pringle (Yenda Producers Coop), Chris Lvitzke (Landmark), Allan Jones (Agronomic Business Solutions) and Pat Connell (PC Agronomy) for submitting samples and being involved in the extension of the project.


Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type None: No crop specified
Treatment type(s)
  • Herbicide: Type
Trial type
Trial design

Griffith 2012

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication 3
Seed treatment

For the 102 ryegrass samples, 0.2 g of seed was planted in plastic punnet trays (330 x 280 x 60 m). Each tray contained 14 different samples sown in rows 25 mm apart and 5 mm deep then covered. Trays were filled with either 50:50 peat:sand mix or soil mix (50:50 loam:river wash sand) depending on the herbicide to be applied. Two weeks after sowing all samples screened to post-emergent herbicides were counted and thinned to a maximum of 20 plants per sample. Sow thistle samples were sown in February 2013. Approximatley 50 seeds from each of the samples were planted in plastic trays (150 x 100 x 60 mm). Trays were filled as previously.

Other trial notes

This project was originally established between NSW DPI and GRDC; however, as a result of structural changes in NSW DPI, Ag Grow Agronomy and Research was contracted to complete the project.

Merriwagga 2012

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Seed treatment Not specified
Other trial notes

This project was originally established between NSW DPI and GRDC; however, as a result of structural changes in NSW DPI, Ag Grow Agronomy and Research was contracted to complete the project.

Rankins Springs 2012

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Seed treatment Not specified
Other trial notes

This project was originally established between NSW DPI and GRDC; however, as a result of structural changes in NSW DPI, Ag Grow Agronomy and Research was contracted to complete the project.

Temora 2012

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Seed treatment Not specified
Other trial notes

This project was originally established between NSW DPI and GRDC; however, as a result of structural changes in NSW DPI, Ag Grow Agronomy and Research was contracted to complete the project.

Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Griffith, NSW Not specified
Merriwagga, NSW Not specified
Rankins Springs, NSW Not specified
Temora, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Griffith, NSW Kandosol
Merriwagga, NSW Kandosol
Rankins Springs, NSW Kandosol
Temora, NSW Kandosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Griffith NSW Merriwagga NSW Rankins Springs NSW Temora NSW
2012 440.7mm625.2mm604.8mm603.7mm
2011 483.8mm641.9mm622.3mm615.3mm
2010 391.5mm671.4mm652.9mm622.2mm
2009 249.4mm631.1mm605.3mm570.3mm
2008 202.6mm640.8mm590.0mm556.2mm
2007 117.0mm573.2mm508.8mm475.6mm
2006 183.5mm613.6mm567.9mm514.6mm
2005 214.8mm632.7mm608.8mm516.7mm
2004 180.8mm604.2mm566.9mm454.7mm
2003 179.2mm566.3mm555.5mm422.3mm
2002 212.3mm538.3mm508.4mm414.1mm
2001 303.5mm585.8mm548.8mm454.0mm
2000 332.7mm558.9mm500.6mm430.4mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

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Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Griffith NSW

Merriwagga NSW

Rankins Springs NSW

Temora NSW

Griffith NSW

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Merriwagga NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Rankins Springs NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Temora NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
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Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol 16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.

Trial report and links

2012 trial report



Trial last modified: 11-05-2023 11:21am AEST