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Stem rust control in wheat

2010
CC BY 4.0

Research organisation
Funding source
Southern Farming Systems
<abbr title='Grains Research and Development Corporation'>GRDC</abbr>

Trial details

Researcher(s) Bruce Dixon (SFS)
Ben O'Connor (SFS)
Nick Poole (SFS)
Tracey Wylie (FAR NZ)
Year(s) 2010
Contributor Southern Farming Systems
Trial location(s) Inverleigh, VIC
Stem rust control in wheat locations
Aims
  • To evaluate the efficacy of different foliar fungicides against stem rust (Puccinia graminis f.sp. tritici) in wheat.
  • To account for possible shortages in foliar fungicide supply, products were tested over as wide a rate range as possible (N.B. Use of products and rates lower than label rates in this trial does not constitute a recommendation).  
     
Key messages
  • Fungicide application for stem rust control was more effective and economic where product application was made prior to visible infection in the crop.
  • Where fungicide application was made at an early stage of grian fill (GS 71) disease control of stem rust was inferior to the same products applied at the same rate 16 days earlier at 50% ear emergence (GS 55).
  • Higher rates of fungicide (label rates for stem rust control) need to be employed for this disease in order to give effective control; this is particularly the case with fungicides containing a single active ingredient such as tebucanazole (e.g. Folicur) or epoxiconazole (e.g. Optus).
  • The strobilurin/triazole mixture of azoxystrobin/cyproconazole (Amistar Xtra) gave excellent stem rust control at its highest rate but its higher cost reduced its economic return.
  • The performance of propiconazole (e.g. Tilt) against stem rest was poor in terms of disease control, relative to other products tested.
Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC
Related program N/A
Acknowledgments

This is a FAR led project that covered Victoria and South Australia funded by GRDC. 

We would like to place on record our grateful thanks to the host farmer Mr John Hamilton.
 
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Crop : Variety
  • Fungicide : Rate
  • Fungicide : Timing
  • Fungicide : Type
Trial type Experimental
Trial design Replicated

Inverleigh 2010

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

Download results

Trial results Table 1

# Variety
 Treatment 1
Grain yield (t/ha)
1 █ Beaufort █ Tilt; mid rate @ GS55 6.78
2 █ Beaufort █ Tilt; low rate @ GS55 6.35
3 █ Beaufort █ Tilt; high rate @ GS71 5.97
4 █ Beaufort █ Tilt; high rate @ GS55 6.35
5 █ Beaufort █ Tilt Xtra; mid rate @ GS55 6.35
6 █ Beaufort █ Tilt Xtra; low rate @ GS55 6.3
7 █ Beaufort █ Tilt Xtra; high rate @ GS71 6.38
8 █ Beaufort █ Tilt Xtra; high rate @ GS55 6.4
9 █ Beaufort █ Prosaro+Hasten mid rate @ GS55 6.38
10 █ Beaufort █ Prosaro+Hasten low rate @ GS55 6.18
11 █ Beaufort █ Prosaro+Hasten high rate @ GS55 6.93
12 █ Beaufort █ Prosaro+Hasten @ GS55 6.08
13 █ Beaufort █ Opus; mid rate @ GS55 6.4
14 █ Beaufort █ Opus; low rate @ GS55 6.03
15 █ Beaufort █ Opus; high rate @ GS71 6.2
16 █ Beaufort █ Opus; high rate @ GS55 6.03
17 █ Beaufort █ Opera; mid rate @ GS55 6.1
18 █ Beaufort █ Opera; low rate @ GS55 6.18
19 █ Beaufort █ Opera; high rate @ GS71 5.95
20 █ Beaufort █ Opera; high rate @ GS55 6.2
21 █ Beaufort █ Folicur; mid rate @ GS55 6.25
22 █ Beaufort █ Folicur; low rate @ GS55 5.7
23 █ Beaufort █ Folicur; high rate @ GS71 6.1
24 █ Beaufort █ Folicur; high rate @ GS55 6.4
25 █ Beaufort █ Control - untreated 6.2
26 █ Beaufort █ Amistar Xtra; mid rate @ GS55 6.25
27 █ Beaufort █ Amistar Xtra; low rate @ GS55 6.13
28 █ Beaufort █ Amistar Xtra; high rate @ GS71 6.23
29 █ Beaufort █ Amistar Xtra; high rate @ GS55 6.53

Grain yield t/ha

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Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Inverleigh, VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Inverleigh, VIC 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 Inverleigh VIC
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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.

Inverleigh VIC

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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

2010 trial report



Trial last modified: 31-10-2019 12:28pm AEST