Summer weeds

Controlling summer weeds is a key strategy to conserving moisture and nutrients for the subsequent crop. This is a common practice implemented across medium to low rainfall cropping zones of Australia.

OFT contains more than 90 trials that have explored issues on managing summer weeds, including herbicide and tillage strategies, the use of herbicides and adjuvants and the latest spraying technologies including spot spraying. Trials covering particular weed varieties include: Awnless barnyard grass, Feathertop Rhodes grass, Liverseed grass, Wild radish, Stink grass and Fleabane. In tackling summer weeds, trials exploring aspects of residual herbicide effects on following crops are also provided.

For further information on summer weed management, refer to the following article from GRDC GroundCover:

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98 total results found Matching the current search filters and located within the visible map area.

95 results have a trial report available
35 results have source data available
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Aims:

In southern Australian mixed farming systems, there are many opportunities for pasture improvement, providing positive impacts to both cropping and livestock systems. Dryland legume pastures are necessary in low to medium rainfall zones to support productive and healthy livestock, along with optimal production in crops following these pastures. … read more

Crop type: Mixed species 1 trial Crop Type Variety Type
Minnipa Agricultural Centre, SA
Research organisatons
Funding sources

Aims:

To determine effective rates and mixtures for the knockdown control of hard to kill summer grass weeds. 

Crop type: Fallow 2 trials Herbicide Herbicide Type Herbicide Rate
Gunnedah, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To determine effective rates and mixtures for the knockdown control of hard to kill summer grass weeds

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Timing
Pittsworth, QLD
Research organisaton
Funding source

Aims:

To determine effective rates and mixtures for the knockdown control of hard to kill summer grass weeds. Specifically Button Grass

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Goondiwindi, NSW
Research organisaton
Funding source

Aims:

To determine effective rates and mixtures for the knockdown control of hard to kill summer grass weeds. Specifically Button Grass.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Timing
Tulloona, NSW
Research organisaton
Funding source

Aims:

To determine effective rates and mixtures for the knockdown control of hard to kill summer grass weeds. Specifically Liverseed Grass.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Timing
Mary's Mount, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To determine effective rates and mixtures for the knockdown control of hard to kill summer grass weeds. Specifically Windmill Grass.

Crop type: Fallow 2 trials Herbicide Herbicide Type Herbicide Rate
Gunnedah, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate a range of herbicides for the control of large grass weeds when using optical spray application. Specifically Awnless Barnyard Grass. 

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Goondiwindi, NSW
Research organisaton
Funding source

Aims:

To evaluate a range of herbicides for the control of large grass weeds when using optical spray application. Specifically Awnless Barnyard Grass. 

Crop type: No crop specified 1 trial Herbicide Herbicide Type Herbicide Rate
Goondiwindi, NSW
Research organisaton
Funding source

Aims:

  • Serradella is a useful pasture species on the sandy soils of the West Midlands. But it has two major weaknesses: weed control (particularly radish and capeweed) and a lack of early biomass production. By sowing serradella with a Clearfield Barley variety (Scope or Spartacus) and using Clearfield (Imidazolinone) herbicides both of these w… read more

Moora, WA
Source Data Unavailable
Research organisaton
Funding source

Aims:

To inform readers about weed sensing: the use of a machine or instrument to detect a weed; a plant that shouldn’t be there

Crop type: No crop specified 1 trial Crop Protection
Loxton, SA
Source Data Unavailable
Research organisaton
Funding source

Aims:

To report on discussions that there was an apparent increase in cultivation of fallows this year.

Crop type: Fallow 1 trial Crop Type
West Wyalong, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To determine effective rates and mixtures for the knockdown control of hard to kill summer grass weeds. Specifically Liverseed Grass. 

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Timing
Bowenville, QLD
Research organisaton
Funding source

Aims:

To evaluate alternative chemistry for fallow knockdown control of summer grass weeds. Specifically Feathertop Rhodes Grass and Button Grass.

Crop type: Fallow 2 trials Herbicide
Crooble, NSW
Research organisaton
Funding source

Aims:

To evaluate a range of herbicides for the control of large grass weeds when using optical spray application, especifically feathertop Rhodes grass. 

Crop type: No crop specified 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Application
St Ruth, QLD
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide
North Star, NSW
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide
Bowenville, QLD
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide
Crooble, NSW
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide
Millmerran, QLD
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide
Moree, NSW
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide
Condamine, QLD
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Application
Gunnedah, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Application
Boggabri, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate residual herbicide tank mixtures for broad spectrum summer fallow weed management.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate Herbicide Application
Gunnedah, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the compatibility of mixtures of Group A and broadleaf herbicides for summer grass weed control. Specifically Feather Top Rhodes Grass. 

Crop type: Fallow 1 trial Herbicide
Crooble, NSW
Research organisaton
Funding source

Aims:

To evaluate the compatibility of mixtures of Group A and broadleaf herbicides for summer grass weed control. Specifically Feathertop Rhodes Grass. 

Crop type: Fallow 1 trial Herbicide
Dalby, QLD
Research organisaton
Funding source

Aims:

To evaluate the compatibility of mixtures of Group A and broadleaf herbicides for summer grass weed control. Specifically Liverseed Grass

Crop type: Fallow 1 trial Herbicide
Mullaley, NSW
Research organisaton

Aims:

To evaluate the influence of perennial row spacing and grass suppression on the performance of serradella summer sown into subtropical perennial-grass pastures.

Crop type: Serradella 1 trial Sowing Row spacing
Regans Ford, WA
Source Data Unavailable
Research organisatons
Funding sources

Aims:

To evaluate alternative chemistry for fallow knockdown control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Rate Herbicide Timing
Dalby, QLD
Research organisaton
Funding source

Aims:

To evaluate alternative chemistry for fallow knockdown control of summer grass weeds. Specifically Liverseed Grass and Awnless Barnyard Grass. 

Crop type: Fallow 1 trial Herbicide
Mullaley, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

  • To evaluate the suitability of "spot spray" technology to control weeds on farming land in the Upper North.
  • To monitor weed control success on "hard to control" summer weeds such as fleabane, onion weed, saltbush type weeds.
  • To record the reduction in pesticide and water use using "spot spra… read more

Crop type: No crop specified 1 trial Herbicide Application
Jamestown, SA
Trial Report Unavailable Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 2 trials Herbicide Herbicide Type Herbicide Rate
Millmerran, QLD
Source Data Unavailable
Research organisaton
Funding source

Aims:

To measure the effectiveness of herbicides used in Clearfield and non-Clearfield cropping rotations to control problematic weeds in the Mallee including wild radish and brome grass.

Crop type: Wheat,Field peas 2 trials Crop Rotation
Pira, VIC
Source Data Unavailable
Research organisaton
Funding source

Aims:

  • To evaluate the suitability of "spot spray" technology to control weeds on farming land in the Upper North.
  • To monitor weed control success on "hard to control" summer weeds such as fleabane, onion weed, saltbush type weeds.
  • To record the reduction in pesticide and water use using "spot spra… read more

Crop type: No crop specified 1 trial Herbicide Application
Jamestown, SA
Source Data Unavailable
Research organisaton
Funding sources
McAg Consulting <abbr title='Upper North Farming Systems'>UNFS</abbr>

Aims:

To investigate the dry matter (DM) productivity and nutritive value (NV) of a range of pasture species sown independently or in conjunction with Fathom barley at Hart in winter and summer.

Crop type: Clover,Medic,Sulla,Field peas,Vetch,Lucerne 6 trials Crop Crop Type Variety Variety Type
Hart, SA
Source Data Unavailable
Research organisaton

Aims:

To investigate alternative break crop sequences and cereal herbicide control options that can increase profitability and reduce brome grass populations in the Mallee.

Crop type: Wheat 1 trial Crop Rotation
Chinkapook, VIC
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Baradine, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Crooble, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Emerald Hill, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Spring Plains, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Westmar, QLD
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
St Ruth, QLD
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Billa Billa, QLD
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Crooble, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Boggabri, NSW
Source Data Unavailable
Research organisaton
Funding source

Aims:

To evaluate the efficacy of residual herbicides for fallow control of summer grass weeds.

Crop type: Fallow 1 trial Herbicide Herbicide Type Herbicide Rate
Condamine, QLD
Source Data Unavailable
Research organisaton
Funding source

Aims:

  • To evaluate the performance of annual crop and pasture species sown into subtropical grasses.
  • To compare summer and winter sowing options to introduce serradella into subtropical perennial pastures.

Crop type: Serradella 1 trial Sowing
Regans Ford, WA
Source Data Unavailable
Research organisatons
Funding source

Aims:

To demonstrate differences between sprayed and unsprayed plots from December 2012 to February 2013 for RCSN Kwinana East Port Zone trial locations.

Crop type: No crop specified 1 trial Herbicide Application
Merredin, WA
Trial Report Unavailable Source Data Unavailable
Research organisaton
Funding source

Aims:

To (i) determine possible associations between soil types and weed distribution within the Kwinana West and the Kwinana East Regional Cropping Solutions Network zones; and (ii) provide factsheets linking soil types to the top 5 weeds in each of the two zones, produced specifically for their zones and soils.

Crop type: Fallow 1 trial Soil
Kwinana, WA
Source Data Unavailable
Research organisaton
Funding source

Herbicide control of summer weeds

David Scholz (Elders Ltd) and Clare Johnston (Liebe Group)

Aims:

To evaluate the economic benefit and effectiveness of different herbicide treatments on mixture of summer grassses and melons.

Crop type: No crop specified 1 trial Herbicide Type Herbicide Rate
Kalannie, WA
Research organisaton