Nutgrass

Cyperus rotundus
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Weed profile

  • Perennial
  • Grass
  • Habitat: gardens, pastures

Impact

Invades pastures, crops and gardens, very hard to kill.

Description

  • Perennial sedge to 60 cm high.
  • Chains of brown underground tubers.
  • Leaves grass-like, shiny, dark-green.
  • Seed heads green, compact.

Control options

  • chemical control

    methyl bromide (1000g/kg)

    When: Soil injection, any time

    Where: Non-crop situations.

  • chemical control

    glyphosate (450g/L)

    When: Boom spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

    Where: Arable land.

  • chemical control

    glyphosate (450g/L)

    When: Spot spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

    Where: Arable land.

  • chemical control

    glyphosate (450g/L)

    When: Boom spray, feb-April, after flowering has begun.

    Where: Non-crop situations

  • chemical control

    glyphosate (450g/L)

    When: Spot spray, feb-April, after flowering has begun.

    Where: Non-crop situations.

  • chemical control

    glyphosate (360g/L)

    When: Boom spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

    Where: Arable land

  • chemical control

    glyphosate (360g/L)

    When: Spot spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

    Where: Arable land and non-crop situations

  • chemical control

    glyphosate (360g/L)

    When: Boom spray, feb-April, after flowering has begun.

    Where: Arable land

  • chemical control

    glyphosate (360g/L)

    When: Spot Spray, feb-April, after flowering has begun.

    Where: Non-crop situations

methyl bromide (1000g/kg)

Application Method: Soil injection

Application Rate: 100g/square metre

Product Name: Methyl Bromide 1000® Fumigant

Herbicide Group: _

Situation: Non-crop situations.

Timing: Soil injection, any time

Comments: Highly poisonous fumigant, classed as Toxic Gas 2, Class 8A Insecticide. Can only be applied by a licenced operator.

Legal Status: Registered

glyphosate (450g/L)

Application Method: Boom spray

Application Rate: Split application 2.4L/ha + 2.4/L/ha

Product Name: agVantage Glyphosate 450®

Herbicide Group: 9

Situation: Arable land.

Timing: Boom spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

Comments: Non selective, avoid contact with desirable plants. Follow-up treatments necessary.

Legal Status: Registered

glyphosate (450g/L)

Application Method: Spot spray

Application Rate: Split application 600mL/100L + 600mL/100L

Product Name: agVantage Glyphosate 450®

Herbicide Group: 9

Situation: Arable land.

Timing: Spot spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

Comments: Non selective, avoid contact with desirable plants. Follow-up treatments necessary.

Legal Status: Registered

glyphosate (450g/L)

Application Method: Boom spray

Application Rate: 4.8L/ha

Product Name: agVantage Glyphosate 450®

Herbicide Group: 9

Situation: Non-crop situations

Timing: Boom spray, feb-April, after flowering has begun.

Comments: Non selective, avoid contact with desirable plants. Follow-up treatments necessary.

Legal Status: Registered

glyphosate (450g/L)

Application Method: Spot spray

Application Rate: 800mL/L

Product Name: agVantage Glyphosate 450®

Herbicide Group: 9

Situation: Non-crop situations.

Timing: Spot spray, feb-April, after flowering has begun.

Comments: Non selective, avoid contact with desirable plants. Follow-up treatments necessary.

Legal Status: Registered

glyphosate (360g/L)

Application Method: Boom spray

Application Rate: Split application 3L/ha + 3/L/ha

Product Name: Roundup Biactive®

Herbicide Group: 9

Situation: Arable land

Timing: Boom spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

Comments: Suitable for use near waterways - refer to label. Non selective, avoid contact with desirable plants. Follow-up treatments necessary.

Legal Status: Registered

glyphosate (360g/L)

Application Method: Spot spray

Application Rate: Split application 700mL/100L + 700mL/100L

Product Name: Roundup Biactive®

Herbicide Group: 9

Situation: Arable land and non-crop situations

Timing: Spot spray, first application when at least 20% of plants flowering. second application 6-8 weeks later.

Comments: Suitable for use near waterways - refer to label. Non selective, avoid contact with desirable plants. Follow-up treatments necessary.

Legal Status: Registered

glyphosate (360g/L)

Application Method: Boom spray

Application Rate: 6L/ha

Product Name: Roundup Biactive®

Herbicide Group: 9

Situation: Arable land

Timing: Boom spray, feb-April, after flowering has begun.

Comments: Suitable for use near waterways - refer to label. Non selective, avoid contact with desirable plants. Follow-up treatments necessary.

Legal Status: Registered

glyphosate (360g/L)

Application Method: Spot Spray

Application Rate: 1L/100L

Product Name: Roundup Biactive®

Herbicide Group: 9

Situation: Non-crop situations

Timing: Spot Spray, feb-April, after flowering has begun.

Comments: Suitable for use near waterways - refer to label. Non selective, avoid contact with desirable plants. Repeat treatments necessary.

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