To assess a range of knockdown herbicide mixtures on small grasses and mixed braod leaf weeds.
Gramoxone at 1.0L/Ha is the best & most cost effective treatment for fast grass control in the short period before sowing
If the sprayed grass paddock is left un-sown for several days, the Glyphosate and Boxer Gold treatment proved to have slower visual control but more reliable grass control over the longer period (95%).
The high rate of Glyphosate CT (2.0L/Ha) was also quite good at the later time of rating (24DAA), 1.0L/Ha did not provide acceptable control (77%)
Rainfall after application would have greatly enhanced the activity of the soil residual herbicides such as Boxer Gold, Sakura and Outlook
The possible foliar absorption of Boxer Gold when mixed with Glyphosate made it a clear winner in this trial. It was by far the cleanest treatment at 24 DAA in the absence of tillage. Gramoxone + Sakura(92%) & Gramoxone + Outlook (90%) were very close behind (no tillage).
Addition of Logran B Power or Hammer did not improve ryegrass control when mixed with Roundup CT or Gramoxone.
Addition of 500ml Alliance to 1.0L Gramoxone may improve broadleaf weed control, particularly small capeweed, but no improvement in grass control.
Lead research organisation
North East Farming Futures
Host research organisation
Darren Chitty - Landmark R&D Agronomist
Critch Families- Wyalong Pastoral Co – Tenindewa
Mullewa Dryland Farming Initiative
Conducted by Grant Thompson of Crop Circle Consulting in association with NEFF
Trial source data and summary not available Check the trial report PDF for trial results.
Derived climate information
No observed climate data available for this trial. Derived climate data is determined from trial site location and national weather sources.
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
2010 trial report
Related Final Reports By Crop type and Region
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Trial last modified: 25-06-2019 11:59am AEST
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