Fireweed

Senecio madagascariensis
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Weed profile

  • Annual
  • Herb
  • Weeds of National Significance (WoNS)
  • Toxic to livestock
  • Habitat: pastures

Impact

Invades degraded pastures, and other disturbed areas. Toxic to livestock.

Description

  • Annual or biennial herb to 70 cm high.
  • Leaves variably toothed and divided, with stem-clasping bases.
  • Yellow daisy flowerheads, each with 12-15 florets, in loose clusters.
  • Seeds with a white 'parachute' of hairs.

Control options

  • chemical control

    triclopyr (300g/L) + picloram (100g/L) + aminopyralid (8g/L)

    When: Spot spray, flowering stage

    Where:

  • chemical control

    bromoxynil (200g/L) + diflufenican(25g/L)

    When: Boom spray, up to the four leaf stage.

    Where: Pasture

triclopyr (300g/L) + picloram (100g/L) + aminopyralid (8g/L)

Application Method: Spot spray

Application Rate: 350mL/100L

Product Name: Grazon Extra®

Herbicide Group: 4

Timing: Spot spray, flowering stage

Comments: Apply thorough foliage spray. Non-crop areas, pastures and rights of way.

Legal Status: Registered

bromoxynil (200g/L) + diflufenican(25g/L)

Application Method: Boom spray

Application Rate: 500mL

Product Name: Jaguar®

Herbicide Group: 5,12

Situation: Pasture

Timing: Boom spray, up to the four leaf stage.

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