This report has been prepared in good faith on the basis of information available at the date of writing without any independent verification. The Grains Research and Development Corporation does not guarantee or warrant the accuracy, reliability, completeness of currency of the information in this report nor its usefulness in achieving any purpose. Readers are responsible for assessing the relevance and accuracy of the content of this report. The Grains Research and Development Corporation will not be liable for any loss, damage, cost or expense incurred or arising by reason of any person using or relying on the information in this report. Products may be identified by proprietary or trade names to help readers identify particular types of products but this is not, and is not intended to be, an endorsement or recommendation of any product or manufacturer referred to. Other products may perform as well or better than those specifically referred to.
Researcher(s) |
Declan Anderson jordan bruce Sarah Noack Stuart Sherriff Sam Trengove |
---|---|
Contact email | samtrenny34@hotmail.com |
Year(s) | 2023 |
Contributor | Trengove Consulting |
Trial location(s) |
Bute, SA
Malinong, SA Katamatite, VIC |
• At Malinong, SA currently registered products from fungicide groups 3, 7 and 11 did not provide high levels of powdery mildew control. This is consistent with previous findings from trials conducted in this project and SAGIT project TC120 across 2020 to 2022.
• Products from alternative modes of action (group 13) provided high levels of powdery mildew control. Septoria infection was also present at this site and must be taken into consideration when interpreting these results.
• There was no or low levels of powdery mildew infection at the Bute, SA and Katamatite, Vic trial sites. These trials did not generate significant new data towards powdery mildew management strategies.
• Field-based sensor surveys are providing some clues for differences in landscape position that might be important in powdery mildew development. Initial results reported here show temperature differences in July/August may be contributing to the differences in the level of powdery mildew infection. However, the results from one season of field monitoring are not sufficient to answer all research gaps.
• Last season a number of regions were resampled (central and northern YP, mid-north, Victoria) for resistance testing to look at the change in G143A mutation frequency overtime.
Lead research organisation |
Trengove Consulting |
---|---|
Host research organisation | N/A |
Trial funding source | GRDC TRE2204-001RTX |
Related program | N/A |
Acknowledgments | N/A |
Other trial partners | Field Applied Research |
Crop type | Cereal (Grain): Wheat |
---|---|
Treatment type(s) |
|
Trial type | Experimental |
Trial design | Randomised |
Sow date | 9 May 2023 |
---|---|
Harvest date | Unknown |
Plot size | Not specified |
Plot replication | Not specified |
Psuedoreplication | Not specified |
Fungicide |
Fungicide treatments (Table 1 of trial report) were applied at GS32 (2nd node) on 17 July 2023 and GS41 (flag leaf sheath extending) on 21 August 2023. |
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.