The information contained in this publication is based on knowledge and understanding at the time of writing (July 2022) and may not be accurate, current or complete. The State of New South Wales (including the Department of Regional New South Wales), the author and the publisher take no responsibility, and will accept no liability, for the accuracy, currency, reliability or correctness of any information included in the document (including material provided by third parties). Readers should make their own inquiries and rely on their own advice when making decisions related to material contained in this publication. The product trade names in this publication are supplied on the understanding that no preference between equivalent products is intended and that the inclusion of a product name does not imply endorsement by the department over any equivalent product from another manufacturer
New South Wales DPI
| 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)
• 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.
Components of the research discussed above can be implemented into an integrated disease management plan to control STB and YLS. Acknowledging the risk, and duration of the risk i.e. up to 2 years, that any STB or YLS infected stubble can have on proceeding cereal crops can guide crop rotation decisions, or if growing wheat on wheat, allow a plan to be implemented that can appropriately manage the risk of these diseases. Variety choice, stubble cut height and stubble removal can all be implemented to reduce yield loss and inoculum levels of STB and YLS.
Components of the research discussed above can be implemented into an integrated disease management plan to control STB and YLS. Acknowledging the risk, and duration of the risk i.e. up to 2 years, that any STB or YLS infected stubble can have on proceeding cereal crops can guide crop rotation decisions, or if growing wheat on wheat, allow a plan to be implemented that can appropriately manage the risk of these diseases. Variety choice, stubble cut height and stubble removal can all be implemented to reduce yield loss and inoculum levels of STB and YLS.
Components of the research discussed above can be implemented into an integrated disease management plan to control STB and YLS. Acknowledging the risk, and duration of the risk i.e. up to 2 years, that any STB or YLS infected stubble can have on proceeding cereal crops can guide crop rotation decisions, or if growing wheat on wheat, allow a plan to be implemented that can appropriately manage the risk of these diseases. Variety choice, stubble cut height and stubble removal can all be implemented to reduce yield loss and inoculum levels of STB and YLS.
| 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. |
| Other trial partners | Not specified |
| Crop type | Cereal (Grain): Wheat |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow date | Multiple - please see report |
|---|---|
| Harvest date | Not harvested |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | Not specified |
| Plot replication | 3 |
| Plot randomisation | Y |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2022, available at |
| Sow date | Multiple - please see report |
|---|---|
| Harvest date | Not harvested |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | Not specified |
| Plot replication | 3 |
| Plot randomisation | Y |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2022, available at |
| Sow date | Multiple - please see report |
|---|---|
| Harvest date | Not harvested |
| Trial design method | RCBD Randomised Complete Block Design |
| Plot size | Not specified |
| Plot replication | 3 |
| Plot randomisation | Y |
| Other trial notes |
This research paper is an extract from the publication Southern NSW Research Results 2022, available at |
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.
