Integrated management strategies for managing Septoria tritici blotch (STB) in wheat in the medium and low rainfall regions of Victoria

2024
CC BY 4.0

Research organisation
Funding sources

Trial details

Researcher(s) Hari Dadu
Julian Taylor
Contact email hari.dadu@agriculture.vic.gov.au
Contact phone 0456665249
Year(s) 2024
Contributor Agriculture Victoria
Trial location(s) Longerenong (MRZ), VIC
Integrated management strategies for managing Septoria tritici blotch (STB) in wheat in the medium and low rainfall regions of Victoria locations
Aims
  • To determine the effect of sowing time for management of STB in wheat.
  • To optimise fungicide application timing for better efficacy of STB control.
Key messages
  • Proactive disease management, which combines variety selection, paddock selection and appropriate fungicide use, provides proven sustainable and economic disease control.
  • Septoria tritici blotch (STB) reduced grain yield in highly susceptible wheat varieties by 21% in the MRZ (Wimmera) during 2024. However, yield losses may be reduced if sowing time can be adjusted as part of integrated control of STB.
  • Monitoring symptoms is critical for STB control. To maximize efficacy, apply fungicides after the appearance of first symptoms on the lower canopy.
Lead research organisation Agriculture Victoria
Host research organisation Agriculture Victoria
Trial funding source GRDC DJP2104_004RTX
Trial funding source AgVic DJP2104_004RTX
Related program N/A
Acknowledgments

This research was funded by the Victorian Government (Agriculture Victoria) and GRDC as part of the GRDC project ‘Epidemiology of Septoria Tritici Blotch in the low and medium rainfall zones of the Southern region to inform IDM strategies’ (DJPR2104_004RTX).

Thanks to Agriculture Victoria’s field crops pathology team at Horsham and the BCG team for technical and scientific support. Thanks also to research collaborators Dr Grant Hollaway (Astute Ag), Dr Andrew Milgate (DPIRD NSW), Dr Fran Lopez Ruiz (Centre for Crop and Disease Management), Dr Rohan Kimber and Dr Tara Garrard (SARDI).


Other trial partners Birchip Cropping Group (BCG)
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Fertiliser : Timing
  • Sowing : Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Longerenong (MRZ) 2024

Sow rate or Target density 150 plants/m2
Sowing machinery

Knife points, press wheels, 30cm row spacing 

Sow date 24 April 2024
Harvest date 5 December 2024
Trial design method RCBD Randomised Complete Block Design
Plot size 1.9m x 10m
Plot replication 6
Plot blocking Ranges
Fertiliser

MAP and Urea applied to achieve 4 t/ha grain yield.

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
Longerenong (MRZ), VIC Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Longerenong (MRZ), VIC Vertosol

Climate

Longerenong (MRZ) VIC 2024


Observed climate information

Rainfall avg gsr (mm) 184mm
Rainfall trial gsr (mm) 184mm

Derived climate information

Longerenong (MRZ) VIC

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

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

2024 trial report



Trial last modified: 22-04-2025 11:58am AEST