African turnip weed - western (Sisymbrium runcinatum)

African turnip is a weedy plant in many crops in Australia. It is a brassicaceous plant (related to mustard and turnip).

Profile

How does this weed affect you?

African turnip is a weedy brassicaceous species. Brassicaceous weeds belong to the Brassicaceae (mustard/turnip) family (formerly called Cruciferae) which comprises about 338 genera and 3709 species. In Australia, there are about 215 brassicaceous species belonging to 57 genera. Over half these species are native and several of the introduced species are the source of important vegetable crops and oils. However, most of the exotic species have become weeds and many of these are significant problems in Australia’s cropping zone.

Where is it found?

African turnip weed has limited distribution within northern NSW yet has the potential for further spread to areas with heavy soils.

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Control

Herbicide options

WARNING - ALWAYS READ THE LABEL
Users of agricultural or veterinary chemical products must always read the label and any permit, before using the product, and strictly comply with the directions on the label and the conditions of any permit. Users are not absolved from compliance with the directions on the label or the conditions of the permit by reason of any statement made or not made in this information. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website www.apvma.gov.au

See Using herbicides for more information.


Oxyfluorfen 240 g/L (Goal Herbicide)
Rate: 3 to 4 L per ha
Comments: Forestry: pre-emergence application
Withholding period: Do not allow livestock to graze treated weeds
Herbicide group: G, Inhibitors of protoporphyrinogen oxidase (PPOs)
Resistance risk: Moderate


Simazine 900 g/kg (Various products)
Rate: 5 to 24 kg per ha or 500 g to 2.4 kg in 100 L of water
Comments: Non-crop areas: Light soils. Higher rates for longer residual control or for summer rainfall areas.
Withholding period: Not required when used as directed.
Herbicide group: C, Inhibitors of photosynthesis at photosystem II (PS II inhibitors)
Resistance risk: Moderate


Simazine 900 g/kg (Various products)
Rate: 5 to 48 kg per ha or 500 g to 4.8 kg in 100 L of water
Comments: Non-crop areas: Heavy soils. Higher rates for longer residual control or for summer rainfall areas.
Withholding period: Not required when used as directed.
Herbicide group: C, Inhibitors of photosynthesis at photosystem II (PS II inhibitors)
Resistance risk: Moderate


Simazine 900 g/kg (Various products)
Rate: 1.6 to 6.7 kg per ha
Comments: Forestry: pre-emergence application
Withholding period: Not required when used as directed.
Herbicide group: C, Inhibitors of photosynthesis at photosystem II (PS II inhibitors)
Resistance risk: Moderate


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Biosecurity duty

The content provided here is for information purposes only and is taken from the Biosecurity Act 2015 and its subordinate legislation, and the Regional Strategic Weed Management Plans (published by each Local Land Services region in NSW). It describes the state and regional priorities for weeds in New South Wales, Australia.

Area Duty
All of NSW General Biosecurity Duty
All plants are regulated with a general biosecurity duty to prevent, eliminate or minimise any biosecurity risk they may pose. Any person who deals with any plant, who knows (or ought to know) of any biosecurity risk, has a duty to ensure the risk is prevented, eliminated or minimised, so far as is reasonably practicable.

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For technical advice and assistance with identification please contact your local council weeds officer.
For further information call the NSW DPI Biosecurity Helpline on 1800 680 244 or send an email to weeds@dpi.nsw.gov.au

Reviewed 2018