Mullewa trials - fungicides for Sclerotonia management in canola


Research organisaton

Trial details

Researcher(s) Grant Thompson (Crop Circle Consulting)
Year(s) 2011
Contributor North East Farming Futures
Trial location(s) , WA
Mullewa trials - fungicides for Sclerotonia management in canola locations

To asses the effects of fungicides for sclerotonia management in canola.

Key messages

Prosaro Fungicide was the best option for reducing Sclerotinia disease pressure during the season. The treatments were applied at 50% Flowering, before any petal drop had occurred. The return on investment was still very good, with Pro-saro returning an additional $116/ha above the untreated control. Perhaps a larger response to fungicides would have been evident if the sprays had been applied at 20-30% flowering, as infection was very evident before spraying. The Rovral fungicide treatment was disappointing in this trial.

Lead research organisation North East Farming Futures
Host research organisation N/A
Related program N/A
  • Austin Rayner – EF Smart P/L – Manager Narra Tarra – harvesting plots.
  • Grant Thompson - Crop Circle Consulting
  • Rick Horbury and Mike Clarke – Bayer R & D – rating plots, stats.
  • Bernie Quade – Landmark – measuring and pegging plots.
  • Darren Chitty –Landmark – Harvesting trials.


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


Crop type Canola
Treatment type(s)
  • Fungicide: Type
Trial type Experimental
Trial design Replicated


Sow rate or Target density Approx 2.5 kg/ha
Sow date Not specified
Harvest date Not specified
Plot size 40m X 8m
Plot replication 3

Prosaro and Rovral Fungicides Applied 5th August , 98L/Ha, 2 bar, 50% flowering (crop at its yellowest).

Download the trial report to view additional method/treatment information

Download results

Trial results Table 1

# Treatment 1
Grain yield (t/ha)
1 Untreated 1.7
2 Rovral 2L 1.67
3 Prosaro 450ml 1.97

Grain yield t/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
, WA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
, WA Chromosol
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 WA
2011 169.0mm
2010 125.5mm
2009 154.7mm
2008 155.3mm
2007 90.6mm
2006 103.5mm
2005 128.6mm
2004 113.3mm
2003 112.5mm
2002 93.8mm
2001 82.9mm
2000 145.0mm
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



Derived climate information

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



Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from
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.