Variety resistance has little effect on ascospore production by wheat pathogens Zymoseptoria tritici (STB) and Pyrenophra tritici-repentis (YLS)

2019 - 2021

Research organisaton
Funding sources
<abbr title='Grains Research and Development Corporation'>GRDC</abbr> New South Wales DPI

Trial details

Researcher(s) Brad Baxter
Tony Goldthorpe
Michael McCaig
Andrew Milgate
Merrin Spackman
Contact email andrew.milgate@dpi.nsw.gov.au
Year(s) 2019 - 2021
Contributor Department of Primary Industries NSW
Trial location(s) Wagga Wagga, ACT
Further information View external link
Variety resistance has little effect on ascospore production by wheat pathogens Zymoseptoria tritici (STB) and Pyrenophra tritici-repentis (YLS) locations
Aims

Variety resistance has little effect on ascospore production by wheat pathogens Zymoseptoria tritici (STB) and Pyrenophra tritici-repentis (YLS)

Key messages

• Zymoseptoria tritici and Pyrenophra tritici-repentis, the disease-causing pathogens of septoria tritici blotch (STB) and yellow leaf spot (YLS), can produce ascospores on wheat stubble regardless of their resistance status.
• Any infected wheat stubble has the ability to initiate an epidemic for up to 2 years.
• Reduce harvest cut height to limit Z. tritici colonising stubble.
• Excess harvest material must be removed from the paddock to produce a net reduction of Z. tritici inoculum.
• Minimise disease impacts by using an integrated approach to management.

Lead research organisation N/A
Host research organisation Department of Primary Industries NSW
Trial funding source GRDC DPI1807-011BLX
Trial funding source New South Wales DPI BLG207
Related program N/A
Acknowledgments

The research undertaken as part of this project is made possible by the joint investment of NSW DPI and GRDC under the Grains Agronomy and Pathology Partnership (GAPP) under project code BLG207 – Integrated disease management for winter cereals in southern NSW.
The authors acknowledge the ongoing support for cereal pathology capacity by NSW DPI.


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
  • Pest Management: Fungal
  • Sowing: Timing
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Wagga Wagga 2019

Sow date Multiple - please see report
Harvest date Not applicable
Plot size Not specified
Plot replication Not specified
Other trial notes

This research paper is an extract from the publication Southern NSW Research Results 2022, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/southern-nsw-research-results

Wagga Wagga 2020

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

This research paper is an extract from the publication Southern NSW Research Results 2022, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/southern-nsw-research-results

Wagga Wagga 2021

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

This research paper is an extract from the publication Southern NSW Research Results 2022, 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
Wagga Wagga, ACT Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Wagga Wagga, ACT Sodosol
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.

Wagga Wagga ACT

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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

2019 trial report



Trial last modified: 09-06-2023 10:04am AEST