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

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Aims:

To determine the impact of grazing on soil condition and weed populations.  This report is on findings after two years of grazing. 

Crop type: Wheat,Barley,Canola 4 trials Grazing Regime Grazing Timing
Inverleigh, VIC Lake Bolac, VIC Werneth, VIC
Research organisaton
Funding sources

Aims:

To assess the effectiveness of a range of summer weed control options. The subsequent effect on yield as a result of weed control.

Crop type: Wheat 1 trial Herbicide Type Soil
East Maya, WA
Research organisaton

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

Aims:

  • To assess current and novel herbicides and mixes at elevated rates to achieve fast control of summer weeds through weedseeker selective spot spraying..
  • To plant trial plots to wheat to assess carryover or plantback issue with these treatments.

Crop type: Wheat 1 trial Herbicide Type Herbicide Rate
Mullewa, WA
Research organisaton

Aims:

  • To assess current and novel herbicides and mixes at elevated rates to achieve fast control of summer weeds through weedseeker selective spot spraying..
  • To plant trial plots to wheat to assess carryover or plantback issue with these treatments.

Crop type: Wheat 1 trial Herbicide Type Herbicide Rate
Mullewa, WA
Research organisaton

Conserving moisture during summer

Claire Browne (BCG), James Hunt and Therese McBeath (CSIRO)

Aims:

To quantify how paddock stubble load and weed burden during summer can affect available soil water, nutrients and subsequent crop yield.

Crop type: Wheat 1 trial Stubble Management
Hopetoun, VIC
Research organisaton
Funding source

Sheep and no-till: no worries!

James Hunt (CSIRO), Neil Fettell (University of New England), Tony Swan and John Kirkegaard (CSIRO), Paul Breust (Farmlink Research) and Mark Peoples (CSIRO)

Aims:

To test whether sheep grazing in no-till systems damages soil and reduces crop yields.

Crop type: Wheat,Lucerne,Canola 6 trials Grazing Regime Stubble Management
Condobolin, NSW Temora, NSW
Research organisaton
Funding source

Aims:

To quantify the effect of paddock stubble management and weed burden during the summer fallow on crop available soil water, nutrients and yield.

Crop type: Lentils 1 trial Soil Type Stubble Management
Hopetoun, VIC
Research organisaton
Funding source

Weed seeker demonstration

Nicole Dimos (SPAA), Tom Lyons (Southern Precision) – Spray contractor Simon Craig (BCG), Tim McClelland (BCG) – Principal researchers Simon Craig (BCG) – Trial Coordinator

Aims:

To demonstrate the effectiveness of weed sensing technology (WeedSeeker) for controlling problematic low population weeds (e.g. Prickly Lettuce).

Crop type: No crop specified 1 trial Herbicide Application
Birchip, VIC
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 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 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
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
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
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
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
Moree, NSW
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 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
Bowenville, QLD
Research organisaton
Funding source

Aims:

To evaluate new and existing field pea varieties.

Crop type: Field peas 1 trial Variety Type
Winchester, WA
Research organisatons

Aims:

  • To investigate the potential role of reducing inputs to improve gross margins.
  • To examine the effect of in crop monitoring using appropriate PA technology to enhance yield.
  • To demonstrate to local farmers the potential use of PA tools for crop management.

Crop type: Wheat 1 trial Fertiliser Rate Fungicide Rate Sowing Rate
Rand, NSW
Research organisaton
Funding source

Aims:

To compare the economic and agronomic response between the paddock rotations of wheat on wheat, wheat on late pasture topping and wheat on chemical fallow. This investigation aims to identify winter fallowing as a low-risk rotational strategy for low rainfall cropping systems in the North and Eastern Wheatbelt region of Western Australia.

Crop type: Wheat 1 trial Crop Rotation
East Dalwallinu, WA
Research organisaton

Aims:

To compare two methods for the establishment of pasture legumes (i) summer sowing where dormant hard-seed is drill sown into the paddock after the crop is harvested and (ii) traditional sowing where scarified seed is drill sown after the break of the season and knockdown weed control.

Crop type: Clover,Serradella 2 trials Herbicide Application Sowing Timing Variety Type
East Coorow, WA
Research organisaton

Summer sowing serradella pod into perennial grass pastures

Geoff Moore, Brad Wintle (DAFWA) and Phil Barrett-Lennard (AgVivo/Evergreen Farming)

Aims:

  • To evaluate the effectiveness of establishing annual legumes into established perennial grass-based pastures by 'summer' sowing of hard-seeded serradella pod.
  • To test the effectiveness of drilling pod versus broadcasting of pod.

Crop type: Serradella 1 trial Sowing Rate Sowing Method Variety Type
Badgingarra, WA
Research organisaton

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:

To assess herbicide options to control button grass during summer.

Crop type: No crop specified 1 trial Herbicide Type
Tenindewa, WA
Research organisaton
Funding source

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 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 assess whether the effects of grazing canola with sheep during the growing season: factors being assessed are yield and quality, dry matter production and grazing value.

Crop type: Canola 1 trial Grazing Regime Variety Type
East Binnu, WA
Research organisaton
Funding sources