Three-cornered garlic

Allium triquetrum
three-cornered_garlic_1_-_3_cornered_garlic_Biosecurity_SA_2.jpg
three-cornered_garlic_2_-_3-cornered_garlic_JDean.jpg

Weed profile

  • Perennial
  • Herb
  • Contaminates produce
  • Habitat: native vegetation

Impact

Dominates ground layer under shade.

Description

  • Perennial herb with a scent of garlic.
  • White underground bulb with numerous bulblets at base.
  • Leaves fleshy, flat, shallowly channelled.
  • Flowers white, bell-shaped, in a group at the top of a 3-sided leafless stem.

Control options

  • chemical control

    metsulfuron-methyl (600g/kg)

    When: Spot spray, actively growing, pre-flowering

    Where: Conservation areas, bushland and other non-crop areas.

  • chemical control

    metsulfuron-methyl (600g/kg)

    When: Boom spray, actively growing, pre-flowering

    Where: Non-crop areas

  • chemical control

    glyphosate dual salt (360g/L)

    When: Wiper sponge or brush, actively growing, pre-flowering

    Where: Conservation areas, bushland and other non-crop areas.

  • chemical control

    glyphosate (450g/L)

    When: Spot spray, actively growing, pre-flowering

    Where: Conservation areas, bushland and other non-crop areas.

  • chemical control

    dicamba (500g/L)

    When: Spot spray, actively growing, pre-flowering

    Where: Non-crop areas

  • physical control

    Cultivation and pasture improvement

    When: Any time

    Where: Arable land and pasture.

metsulfuron-methyl (600g/kg)

Application Method: Spot spray

Application Rate: 2.5g/100L

Product Name: Brush-Off®

Herbicide Group: 2

Situation: Conservation areas, bushland and other non-crop areas.

Timing: Spot spray, actively growing, pre-flowering

Comments: Soil active herbicide, may damage desirable vegetation.

Legal Status: PER 13371 (exp. 2027)

metsulfuron-methyl (600g/kg)

Application Method: Boom spray

Application Rate: 10g/ha

Product Name: Brush-Off®

Herbicide Group: 2

Situation: Non-crop areas

Timing: Boom spray, actively growing, pre-flowering

Comments: Soil active herbicide, may damage desirable vegetation. Use 400 L water per hectare.

Legal Status: PER 13371 (exp. 2027)

glyphosate dual salt (360g/L)

Application Method: Wiper sponge or brush

Application Rate: 1L/3L

Product Name: Weedmaster® Duo

Herbicide Group: 9

Situation: Conservation areas, bushland and other non-crop areas.

Timing: Wiper sponge or brush, actively growing, pre-flowering

Comments: Non selective, avoid contact with desirable plants.

Legal Status: PER 13371 (exp. 2027)

glyphosate (450g/L)

Application Method: Spot spray

Application Rate: 1L/100L

Product Name: Roundup CT®

Herbicide Group: 9

Situation: Conservation areas, bushland and other non-crop areas.

Timing: Spot spray, actively growing, pre-flowering

Comments: Non selective, avoid contact with desirable plants.

Legal Status: PER 13371 (exp. 2027)

dicamba (500g/L)

Application Method: Spot spray

Application Rate: 80mL/100L

Product Name: Kamba 500®

Herbicide Group: 4

Situation: Non-crop areas

Timing: Spot spray, actively growing, pre-flowering

Comments: Do not apply to crops or legume-based pastures.

Legal Status: Registered

Cultivation and pasture improvement

Situation: Arable land and pasture.

Timing: Any time

Comments: On arable land control over 3-4 years of repeated cultivations. In pastures prevent seed production by mowing, slashing or heavy grazing of flowering stems. Combine this with pasture improvement.

Legal requirements in each region

To find out which landscape region you're in visit the NatureMaps website.
Alinytjara Wiluṟara
Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

Eyre Peninsula
Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

Green Adelaide
Control

Land owners in this region to take reasonable steps to kill plants and prevent their spread. Enforceable by the Green Adelaide Board.

Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

Hills and Fleurieu
Control

Land owners in this region to take reasonable steps to kill plants and prevent their spread. Enforceable by the Hills and Fleurieu Landscape Board.

Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

Kangaroo Island
Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

Limestone Coast
Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

Murraylands and Riverland
Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

Northern and Yorke
Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

South Australian Arid Lands
Sale

Must not be sold or traded in any way, including as a contaminant of anything.

Movement

Must not be transported on a public road, including as a contaminant of anything.

More Information

Find out how to:

Control advice

For further help and advice managing this weed contact your regional landscape board:

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