Re-thinking the current ascochyta blight control strategy in field peas

CC BY 4.0

Research organisatons
Funding source

Trial details

Researcher(s) Christine Walela, Larn McMurray, Jenny Davidson and Leigh Davis (SARDI)
Year(s) 2016
Contributor Hart Field Site Group
Trial location(s) , SA
Site 5, Hart, SA
Re-thinking the current ascochyta blight control strategy in field peas locations

To develop improved AB disease control management strategies through the use of fungicides. The 2016 trials were aimed to assess new experimental fingicides alongside the current strategy and also include variations in fungicide application timings to improve disease control efficacy. 

Key messages
  • The recommended industry practice of P-Pickel (PPT) seed treatment and two foliar fungicides of mancozeb failed to significantly reduce disease infection levels or increase grain yield over untreated control treatments under high blackspot disease pressure in 2016.
  • Early disease control applications (four weeks after sowing) were important for reducing initial blackspot infection levels at Minnipa, conversely, later Spring applications were important at the higher rainfall site of Hart.
  • Over two consecutive years, a yield benefit of at least 15% has been obtained from the application of new experimental fungicide actives over the current industry practice treatment.
  • Further research is required to understand the interaction in efficacy between fungicides and timing of disease infection, together with the drivers of ascochyta blight onset and progression in different field pea growing environments.
Lead research organisation South Australian Research and Development Institute
Host research organisation Hart Field Site Group
Trial funding source GRDC DAV00150
Related program N/A

Funding for this work was provided through GRDC project DAV00150 (Southern Pulse Agronomy) and their support is greatly appreciated. We also acknowledge the support of research colleagues from the SARDI teams at Clare and Minnipa. Much gratitude also goes to the land owners/managers of the different farms where the trial sites were located and to Rob Griffith former Bayer CropScience Pty Ltd for providing Aviator Xpro.

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


Crop type Field peas
Treatment type(s)
  • Fungicide
  • Fungicide: Application
Trial type Experimental
Trial design Randomised,Replicated,Blocked


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

While all due care has been taken in compiling the information within this manual the Hart Field-Site Group Inc or researchers involved take no liability resulting from the interpretation or use of these results. We do not endorse or recommend th

Hart 2016

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Other trial notes Not specified
Download the trial report to view additional method/treatment information

Download results

Trial results Hart

# Treatment 1
Grain yield (t/ha)
1 Nil 1.49
2 Sys 1.55
3 PPT 1.33
4 Flu 1.49
5 Manc. Std 1.54
6 Manc. Low 1.6
7 Ami.Xtra 1.84
8 Avi.Xpro 1.93
9 Uni. + Ami.Xtra 1.91
10 Flu. + Avi.Xpro 1.89
11 Avi.Xpro (early) + Manc. 1.65
12 Chloro 2.67

Grain yield t/ha


Trial results Minnipa

# Treatment 1
Grain yield (t/ha)
1 Nil 0.95
2 Sys 1.19
3 PPT 1.05
4 Flu 1.1
5 Manc. Std 1.19
6 Manc. Low 1.37
7 Ami-Xtra 1.32
8 Ai.Xpro 1.4
9 Uni. + Ami.Xtra 1.21
10 Flu. + Avi.Xpro 1.57
11 Avi. Xpro (early) + Manc. 1.58
12 Chloro 1.67

Grain yield t/ha

Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
, SA Not specified
Site 5, Hart, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
, SA Calcarosol
Site 5, Hart, SA 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 SA Site 5, Hart SA
2016 315.3mm659.9mm
2015 289.3mm597.6mm
2014 336.5mm638.6mm
2013 290.8mm622.8mm
2012 330.8mm654.6mm
2011 383.4mm683.8mm
2010 385.3mm686.7mm
2009 391.3mm669.9mm
2008 330.4mm633.9mm
2007 331.2mm649.9mm
2006 334.5mm651.2mm
2005 288.0mm675.4mm
2004 296.1mm633.0mm
2003 293.2mm652.2mm
2002 283.3mm649.4mm
2001 343.9mm674.5mm
2000 389.0mm625.6mm
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.


Site 5, Hart SA



Site 5, Hart SA


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.

Trial last modified: 09-12-2019 19:43pm AEST