Siratro is a trailing herb. It is a weed of pasture and roadsides, north of Sydney.
Siratro will smother native shrubs, grasses or younger trees. It can form dense infestations along forest edges. It is common around waterways, particularly in coastal sand dunes north of Sydney.
Siratro is a climbing or creeping perennial legume with hairy stems that grow 2-3 m long. It flowers most of the year.
In NSW it is common around roadsides and waterways, particularly in coastal sand dunes north of Sydney. It is also found on Lord Howe and Norfolk Islands.
It is native to central and north America.
Siratro is spread by seeds and plant parts. Seed pods burst open when ripe, shooting seeds several metres away. Seeds are also spread by water and cattle. The seeds are still viable after being eaten and then defecated whole.
PlantNET (The NSW Plant Information Network System). Royal Botanic Gardens and Domain Trust, Sydney. Retrieved September 2018 from: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Macroptilium~atropurpureum
Queensland Government. (2020). Invasive plant: Siratro Macroptilium atropurpureum Retrieved 2020 from:https://www.daf.qld.gov.au/__data/assets/pdf_file/0003/65289/siratro.pdf
See Using herbicides for more information.
PERMIT 11916 Expires 31/03/2025
Glyphosate 360 g/L
(Various products)
Rate: 1 part product to 100 parts water plus surfactant
Comments: Spot spray: Urban bushland, forests and coastal reserves.
Withholding period: Nil.
Herbicide group: 9 (previously group M), Inhibition of 5-enolpyruvyl shikimate-3 phosphate synthase (EPSP inhibition)
Resistance risk: Moderate
PERMIT 11916 Expires 31/03/2025
Glyphosate 360 g/L
(Various products)
Rate: 1 part product to 1.5 parts water
Comments: Scrape stems: Urban bushland, forests and coastal reserves.
Withholding period: Nil.
Herbicide group: 9 (previously group M), Inhibition of 5-enolpyruvyl shikimate-3 phosphate synthase (EPSP inhibition)
Resistance risk: Moderate
Glufosinate-ammonium 200 g/L
(Basta® )
Rate: 1 to 3L per Ha
Comments: Boom or directed sprayer. Commercial and industrial areas, rights of way and non-agricultural areas.
Withholding period: Variable, up to 16 weeks, see label for more information.
Herbicide group: 10 (previously group N), Inhibition of glutamine synthetase
Resistance risk: Moderate
Glufosinate-ammonium 200 g/L
(Basta® )
Rate: 300 mL to 100 L of water
Comments: Hand gun application. Commercial and industrial areas, rights of way and non-agricultural areas.
Withholding period: Variable, up to 16 weeks, see label for more information.
Herbicide group: 10 (previously group N), Inhibition of glutamine synthetase
Resistance risk: Moderate
Glufosinate-ammonium 200 g/L
(Basta® )
Rate: 45 mL to 15 L of water
Comments: Knapsack application. Commercial and industrial areas, rights of way and non-agricultural areas.
Withholding period: Variable, up to 16 weeks, see label for more information.
Herbicide group: 10 (previously group N), Inhibition of glutamine synthetase
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 2020