| Researcher(s) |
Thomas Heddle Jessica Lye James Maino Elia Pirtle Paul Umina Maarten van Helden |
|---|---|
| Year(s) | 2018 |
| Contributor | MacKillop Farm Management Group |
| Trial location(s) |
Bool Lagoon, SA
Loxton, SA Roseworthy, SA |
To investigate regional risk and management tactics for RWA.
• Contrary to expectations Russian Wheat Aphid pressure in Southern Australian cereal production seems low over the last years (2017, 2018). Dry and hot summer conditions seem to reduce green bridge survival of Russian Wheat Aphids.
• Barley grass and Brome grasses are major hosts (van Helden 2018) supporting RWA survival over summer. Their development will strongly depend on summer rainfall.
• Development of regional economic thresholds are in progress at trial sites throughout South Australia,Victoria, Tasmania, and New South Wales. Use of international thresholds are still advised until Australian thresholds are developed.
• Observations suggest that crop infestations occur in autumn on early growth stages, then persist over winter and can build up in spring, especially when plants are drought stressed.
| Lead research organisation |
MacKillop Farm Management Group |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC 9176535 |
| Related program | N/A |
| Acknowledgments |
• Project 9176535 is a GRDC investment that seeks to deliver information on Russian Wheat Aphid management for grain growers. This project is being undertaken by the South Australian Research & Development Institute (SARDI) and cesar. The project team would like to acknowledge 2018 trial site contractors in South Australia, Victoria, New South Wales, and Tasmania. |
| Other trial partners | Not specified |
| Crop type | Other crop: Grasses |
|---|---|
| Treatment type(s) |
|
| Trial type | Unknown |
| Trial design | Unknown |
| Sow date | Not applicable |
|---|---|
| Harvest date | Not applicable |
| Plot size | Not specified |
| Plot replication | Not specified |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
| Sow date | Not specified |
|---|---|
| Harvest date | Not specified |
| Plot size | Not specified |
| Plot replication | Not specified |
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.
