Effect of timing of fungicide application to manage sclerotinia stem rot in canola

2017

Research organisaton
Funding sources

Trial details

Researcher(s) Audrey Leo (NSW DPI)
Kurt Lindbeck (NSW DPI)
Gerard O'Connor (NSW DPI)
Beverley Orchard (NSW DPI)
Year(s) 2017
Contributor Department of Primary Industries NSW
Trial location(s) Alma park, NSW
Further information View external link
Effect of timing of fungicide application to manage sclerotinia stem rot in canola locations
Aims

This study was undertaken to determine the optimal timing for fungicide application during the growing season to reduce Sclerotinia development.

Key messages

• Sclerotinia stem rot levels were reduced with a single foliar fungicide applied at 10% and 30%, and multiple applications at the 30% and 50% bloom stages.
• Multiple applications at the 30% and 50% bloom stages had the most significant effect in reducing disease.
• Significant yield benefits were measured when multiple fungicide applications were applied during the growing season.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC UM0051
Trial funding source DPI NSW
Related program N/A
Acknowledgments

This study is part of the ‘National Canola Pathology Project’, UM0051, 2013–18, with joint investment by GRDC and NSW DPI.
The authors would like to thank Dr Sujeewa Rathnayake and Vincent West for technical support.


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

Method

Crop type Oilseed: Canola
Treatment type(s)
  • Fungicide: Rate
  • Fungicide: Timing
Trial type Experimental
Trial design Replicated

Alma park 2017

Sow date Not applicable
Harvest date Not applicable
Plot size Not specified
Plot replication Not specified
Fungicide

Prosaro® 420 SC (450 mL/ha) was applied at nine different timings according to specific growth stages (% bloom), and the combination of growth stages and rainfall events (% bloom– strategic). Single fungicide treatments were applied at 10%, 30%, 50%, and above 50% (late fungicide application – LFA) bloom stages. A multiple fungicide treatment was applied at both 30% plus 50% bloom stages. Strategic treatments were applied before rainfall events at growth stages 10%, 30% and 50% bloom stages. A single 48-hour treatment was included based upon estimating a prolonged period of wet weather given the available forecasts. Nil treatment
was included as a control. Each experiment was in a randomised block design with four replications.

Seed treatment Seed was treated with Jockey® and sown with Impact In-Furrow®-treated fertiliser.
Other trial notes

This research paper is an extract from the publication Southern NSW Research Results 2017, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/southern-nsw-research-results

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
Alma park, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Alma park, NSW Sodosol
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 Alma park NSW
2017 433.5mm
2016 429.1mm
2015 360.7mm
2014 374.6mm
2013 397.3mm
2012 430.5mm
2011 480.9mm
2010 474.3mm
2009 386.8mm
2008 420.8mm
2007 334.7mm
2006 363.7mm
2005 391.2mm
2004 273.2mm
2003 242.1mm
2002 238.6mm
2001 312.6mm
2000 323.0mm
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.

Alma park NSW

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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 last modified: 08-06-2023 17:48pm AEST