Creeping knapweed

Rhaponticum repens
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Weed profile

  • Perennial
  • Herb
  • Habitat: pastures

Impact

Competes with crops and pastures.

Description

  • Perennial herb with deep root system and creeping rhizomes.
  • Leaves blue-green leaves in a basal rosette and along vertical stems.
  • Mauve thistle-like flower heads.

Control options

  • chemical control

    glyphosate (450g/L)

    When: Spot spray, while actively growing.

    Where: Non-agricultural areas.

  • chemical control

    clopyralid (300g/L)

    When: Spot spray, while actively growing, spring to summer.

    Where: Grass pastures and fallows

  • chemical control

    clopyralid (300g/L)

    When: Boom spray, while actively growing, spring to summer.

    Where: Grass pastures and fallows

  • chemical control

    2,4-D (300g/L) + picloram (75g/L)

    When: Spot spray, late spring to summer.

    Where: Non-crop areas.

glyphosate (450g/L)

Application Method: Spot spray

Application Rate: 1L/100L

Product Name: agVantage Glyphosate 450®

Herbicide Group: 9

Situation: Non-agricultural areas.

Timing: Spot spray, while actively growing.

Comments:

Non selective, avoid contact with desirable plants.

Repeat application as required. Suppression only.

Legal Status: Product and use are registered, but this weed is not on the label.

clopyralid (300g/L)

Application Method: Spot spray

Application Rate: 500mL/100L

Product Name: Lontrel®

Herbicide Group: 4

Situation: Grass pastures and fallows

Timing: Spot spray, while actively growing, spring to summer.

Comments: Do not use on pasture legumes. Use 200 - 250 L water per hectare.

Legal Status: Registered (Vic and Qld only)

clopyralid (300g/L)

Application Method: Boom spray

Application Rate: 4L/ha

Product Name: Lontrel®

Herbicide Group: 4

Situation: Grass pastures and fallows

Timing: Boom spray, while actively growing, spring to summer.

Comments: Do not use on pasture legumes.

Legal Status: Registered (Vic and Qld only)

2,4-D (300g/L) + picloram (75g/L)

Application Method: Spot spray

Application Rate: 1.3L/100L

Product Name: Tordon 75-D®

Herbicide Group: 4

Situation: Non-crop areas.

Timing: Spot spray, late spring to summer.

Comments: Soil residual. Do not use near desirable vegetation. Do not apply near susceptible crops.

Legal Status: Registered

Legal requirements in each region

To find out which landscape region you're in visit the NatureMaps website.
Alinytjara Wiluṟara
Eyre Peninsula
Green Adelaide
Hills and Fleurieu
Kangaroo Island
Limestone Coast
Murraylands and Riverland
Northern and Yorke
South Australian Arid Lands