African turnip is a herb up to 60 cm high with rough thin leaves and yellow flowers. It is a weed in crops, pastures and natural environments.
African turnip weed invades pasture and crops such as wheat. It can also invade natural forests and wetlands.
This weed is an annual herb that grows up to 60 cm high. It is erect with roughly hairy thin leaves up to 30 cm long. Flowers are yellow to pale yellow with small petals up to 8 mm long.
African turnip weed has limited distribution within northern NSW yet has the potential for further spread to areas with heavy soils.
See Using herbicides for more information.
Oxyfluorfen 240 g/L
(Goal Herbicide)
Rate: 3 to 4 L per hectare
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
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 pest 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. |
Reviewed 2018