Always follow label recommendations. The Department Primary Industries and Regional Development, does not endorse the use of herbicides above the registered rate or off-label use of herbicides or off-label tank mixes. Crop tolerance and yield responses to herbicides are strongly influenced by seasonal conditions.
Researcher(s) |
Harmohinder Dhammu Mark Seymour |
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Contact email | harmohinder.dhammu@dpird.wa.gov.au |
Contact phone | 0403 156 942 |
Year(s) | 2019 |
Contributor | Department of Primary Industries and Regional Development WA |
Trial location(s) |
Bruce Ley, WA
|
To identify herbicide sensitivities of new lupin varieties with the view to reduce their yield losses due to herbicide damage. Mandelup was included as a standard variety for comparison in the trial.
Blue lupins are problematic in narrow leave lupin production, especially in the Northern Agriculture Region of WA Wheatbelt and no herbicide is registered for their control in this crop. There were earlier reports that blue lupins could be controlled/suppressed with triclopyr (e.g. Garlon®) safely applied at pod setting on main stem of narrow leave lupins (Quinlan and Fleay, 2016). Two timing of application of Garlon® at 30 mL/ha were included in the trial to determine their safety on new narrow leafed lupin varieties.
Pre-emergent simazine and propyzamide (IBS) at maximum label rates recorded low crop safety margin.
Higher uptake of simazine following good soil moisture appeared to have made lupins varieties sensitive to damage by normally safe rates of post-emergent broadleaf herbicides.
A new herbicide Ultro® 900 WG at 2.3 kg/ha applied before seeding was tolerated by all the lupin varieties.
For blue lupin control/suppression, Garlon® 600 (triclopyr) at 30 mL/ha applied at 8-leaf stage and at pod setting on main stem of narrow leafed lupins caused statistically significant yield loss across all the lupin varieties. Triclopyr use on narrow leafed lupins is not registered.
Trial design: Criss-cross with every 5th plot as untreated control plot to check spatial variability.
Lead research organisation |
Department of Primary Industries and Regional Development WA |
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Host research organisation |
Department of Primary Industries and Regional Development WA |
Trial funding source | DPIRD WA |
Related program | N/A |
Acknowledgments |
Thanks to DPIRD for funding this research work, Dr Dion Bennett, AGT for providing seed of new lupin variety Coyote, Trevor Bell and Larry Prosser, Technical Officers, Research Facility Geraldton, Martin Harries, Research Scientist and Stephany Boyce, Technical Officer, DPIRD Geraldton and Pam Burgess, Technical Officer, DPIRD Esperance for their technical assistance. |
Other trial partners | Not specified |
Crop type | Grain Legume: Lupins |
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Treatment type(s) |
|
Trial type | Experimental |
Trial design | Randomised,Replicated |
Sow rate or Target density | 45 plants/m2. |
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Sowing machinery |
Coneseeder with knife points and press-wheels and 5 cm deep. The trial was sown at around 3.5 to 4 km/hr speed. |
Sow date | 6 June 2019 |
Harvest date | 2 November 2019 |
Plot size | 8m x 1.15m |
Plot replication | 3 |
Psuedoreplication | Not specified |
Fertiliser |
Bigphos + Mn 80 kg/ha |
Herbicide |
Please see trial report for details |
Seed treatment | Rovral® 100 mL and Thiraflo® 600 170 mL/100 kg seed. |
Inoculant | Alosca group GS granular 10 kg/ha applied |
Rainfall trial gsr (mm) | 264mm |
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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.