Program control of Brome grass in HT (Clearfield) Scope barley


Research organisatons
Funding source

Trial details

Researcher(s) Mike Jackson (Nufarm Australia Ltd)
Year(s) 2010
Contributor West Midlands Group
Trial location(s) Site 5, Badgingarra, WA
Program control of Brome grass in HT (Clearfield) Scope barley locations

To demonstrate Scope barley and the performance of Clearfield herbicides on brome grass in a non-wetting scenario, and to investigate the benefit of soil wetter and pre-emergence herbicides in improving this performance.

Key messages
  • The standard treatment in this trial, namely Sencor (metribuzin) 750WG plus TriflurX, provided no more that weak suppression of brome allowing substantial seed set.
  • The trial demonstrates a new option for brome control in barley crops now available to growers, namely growing Scope barley and using Clearfield herbicides such as Intervix or Midas. Both products provided excellent to absolute control of brome, as well as silver grass.
  • The trial also demonstrates that while the pre-emergence treatments alone provide only modest control of brome, their use in combination with Clearfield herbicides has the potential to improve the overall Clearfield performance. Their use is recommended for resistance management purposes and as a means of securing yield by reducing early weed competition.
  • Achieving absolute control of brome grass by treatments that pay for themselves and deliver a surplus to users (of $45 – $150 per hectare) should make most Clearfield treatments highly attractive. Atlantis, Crusader and Monza each only provided strong suppression that in the long run cannot be expected to overcome brome. Regardless of their return on investment, they failed to deliver satisfactory brome control (i.e.. >90% so that the seed bank is not dramatically reduced) and are useful only in terms of managing brome within the current crop at best.
Lead research organisation Nufarm
Host research organisation West Midlands Group
Trial funding source Nufarm Ltd
Related program N/A

WMG for including this trial in their trial program.

Other trial partners Not specified
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Crop type Barley
Treatment type(s)
  • Herbicide: Type
Trial type Experimental
Trial design Replicated

Badgingarra 2010

Sow rate or Target density 75kg/ha
Sowing machinery

Small plot seeder, knife point and press wheel.

Sow date 21 May 2010
Harvest date Not specified
Plot size Not specified
Plot replication 3

At seeding: 100 kg/ha Urea (top dressed IBS); 100 kg/ha Vigour Atlas (banded below seed)

                          Post (7/8/10): 80 kg/ha Urea


Pre-seeding (20/5/10): 2.5 L/ha Roundup PowerMAX; 1 L/ha Chlorpyrifos. In April an earlier knockdown treatment was also applied.

Soil amelioration

Soil Wetter:      Half the trial (treatments 1-13) was treated with soil wetter on 7th May and again on 21st May immediately after sowing. The other half was untreated (treatments 14-26)

Download the trial report to view additional method/treatment information
Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Site 5, Badgingarra, WA Pale deep sand
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 5, Badgingarra, WA Chromosol
National soil grid Source
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties



Site 5, Badgingarra WA 2010

Observed climate information

Rainfall trial gsr (mm) 300mm

Derived climate information

Site 5, Badgingarra WA

NOTE: Exact trial site locality unknown - Climate data may not be accurate

Some data on this site is sourced from the Bureau of Meteorology

SILO weather estimates sourced from
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.

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Trial last modified: 27-06-2019 14:51pm AEST