Report the presence of this pest before undertaking control
Information about this pest can be found on the yellow burr weed: declared pest page.
Chemical requirements
When using any agricultural chemicals please ensure that you always follow instructions on the label and any permit. Users of agricultural chemical products must always strictly comply with the directions on the label and the conditions of any permit. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website.
Control options
Chemical control options can be found below. For other methods of control please refer to the aquatic weed control page, and the declared plant control handbook.
Chemical control options
| Recommended herbicides | Bare moist soil before cropping to wheat:Triasulfuron Wheat pre-sowing or post-emergence; barley post-emergence:Chlorsulfuron Up to four leaves:Jaguar® Before six leaves:Metsulfuron Up to eight leaves or 15cm diameter:Eclipse® Up to 10 leaves or 10cm diameter:Broadstrike® Winter — cereal three to six leaf:Bromoxynil + MCPA; Terbutryne (Igran®) |
|---|
| Herbicide: Bromoxynil + MCPA (various trade names: see APVMA link) | |
|---|---|
| Active ingredient | 200g/L bromoxynil (Group C) + 200g/L MCPA (Group I) |
| Rates of dilution for spot spraying | Not recommended |
| Amount of product/10L water | 15mL |
| Rate of product/ha | 1.4L |
| Time of application | Winter — cereal should be at the three to six leaf stage and weeds two to six leaves |
| Remarks | Also for grass pastures. Spot spraying with 10mL picloram + 2,4-D (Tordon 75D/Commander 75D) also registered in Victoria and South Australia. Glyphosate also could be used for spot spraying. |
| More information and other control methods |
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| Herbicide: Terbutryn (various trade names: see APVMA link) | |
|---|---|
| Active ingredient | 500g/L terbutryn |
| Rates of dilution for spot spraying | Not recommended |
| Amount of product/10L water | Not recommended |
| Rate of product/ha | 850mL |
| Wetting agent dilution | Not recommended |
| Time of application | Winter — cereal should be at the three to six leaf stage. Weeds two to six leaves |
| More information and other control methods | An alternative product Agtrene MA (275g/L terbutryn + 160g/L MCPA) registered at 1L/ha for wheat and barley |
| Herbicide: Chlorsulfuron (Group B) (various trade names: see APVMA link) | |
|---|---|
| Active ingredient | 750g/kg chlorsulfuron |
| Rates of dilution for spot spraying | 1g/50L |
| Amount of product/10L water | 0.2g |
| Rate of product/ha | 15g |
| Wetting agent dilution | 1:400 |
| Time of application | Pre-sowing or post-emergence wheat. Post-emergence on barley |
| Remarks | The sulfonyl urea herbicides are very effective on this weed |
| Herbicide: Broadstrike® (Group B) | |
|---|---|
| Active ingredient | 800g/kg flumetsulam |
| Rate of product/ha | 25g |
| Wetting agent dilution | 1:400 non-ionic or Uptake® at 1:200 |
| Time of application | Up to 10 leaves or 10cm diameter |
| Remarks | For wheat, triticale, oats, barley, cereal rye, medic, lucerne and clovers |
| More information and other control methods | Only use wetting agents such as BS-1000 when treating oats and barley |
| Herbicide: Eclipse® (Group B) | |
|---|---|
| Active ingredient | 714g/kg metosulam |
| Rate of product/ha | 7g |
| Wetting agent dilution | Lupins use Agral or BS-1000 1:400. In wheat use Uptake 1:200 or crop oil 1:100 |
| Time of application | Up to eight leaves or maximum of 15cm diameter |
| Remarks | Uptake® surfactant or oils not recommended for lupins |
| Herbicide: Metsulfuron (Group B) (various trade names: see APVMA link) | |
|---|---|
| Active ingredient | 600g/kg metsulfuron methyl |
| Rate of product/ha | 5-7g |
| Wetting agent dilution | 1:400 |
| Time of application | Before six leaves |
| Remarks | Registered for control in cereals. Wheat - barley. |
| Herbicide: Triasulfuron (Group B) (various trade names: see APVMA site) | |
|---|---|
| Active ingredient | 714g/kg triasulfuron |
| Rate of product/ha | 35g |
| Time of application | To bare moist soil before cropping to wheat |
| More information and other control methods | A mixture with butafenacil (Logran B-Power) is also registered |
| Herbicide: Jaguar® | |
|---|---|
| Active ingredient | 250g/L bromoxynil (Group C) + 25 g/L diflufenican (Group F) |
| Rate of product/ha | 750mL |
| Time of application | Up to four leaf stage |
| Remarks | Use in cereals and pastures. Similar product Barracuda® registered at 900mL/ha. |
| More information and other control methods | Spinnaker (Imazethapyr) also registered at 70-100g in New South Wales for treatment in faba beans and field peas. |