Willow rhus is a low branching tree up to 12 m tall, with long, thin, leathery leaves, small greenish-yellow flowers and yellow-to-greyish or brown fruit.
Willow rhus has been found in far western New South Wales where it is outcompeting native plants. It is also known to pose problems for septic systems, having an extensive root system. Willow rhus grows from seeds and can sucker from the roots. It is both drought and frost resistant.
Willow rhus is a low branching tree up to 12 m tall.
The leathery leaves are up to 24.5 cm long and 3 cm wide. They are in groups of three and arranged spirally around the stem.
Flowers are small greenish-yellow. Female and male flowers grow on seperate trees.
Fruit are up to 6.5 mm in diameter and dull yellow to greyish or brown when ripe.
Willow rhus has been found in far western New South Wales, including the town of Sunset Strip next to Lake Menindee, where it is competing with native plants.
Willow rhus is native to southern Africa.
Willow rhus is a hardy plant that can grow in different climates. It tolerates drought, frost and different soil conditions, including poor drainage. Plants can grow:
PlantNET, Royal Botanic Gardens and Domain Trust, Sydney, plantnet.rbgsyd.nsw.gov.au
Stern M (2008), Searsia lancea In PlantZAfrica
See Using herbicides for more information.
PERMIT 9907 Expires 31/03/2025
Fluroxypyr 200 g/L
(Various products)
Rate: 35 mL per L diesel/kerosene
Comments: Basal bark
Withholding period: Do not graze failed crops and treated pastures or cut for stock feed for 7 days after application. See label for further information.
Herbicide group: 4 (previously group I), Disruptors of plant cell growth (Auxin mimics)
Resistance risk: Moderate
PERMIT 9907 Expires 31/03/2025
Fluroxypyr 333 g/L
(Staraneā¢ Advanced)
Rate: 21 mL per L diesel/kerosene
Comments: Basal bark
Withholding period: Do not graze failed crops and treated pastures or cut for stock food for 7 days after application. See label for more information.
Herbicide group: 4 (previously group I), Disruptors of plant cell growth (Auxin mimics)
Resistance risk: Moderate
PERMIT 9907 Expires 31/03/2025
Glyphosate 360 g/L
(Various products)
Rate: One part product to 1.5 parts water
Comments: Cut stump or stem injection.
Withholding period: Nil.
Herbicide group: 9 (previously group M), Inhibition of 5-enolpyruvyl shikimate-3 phosphate synthase (EPSP inhibition)
Resistance risk: Moderate
PERMIT 9907 Expires 31/03/2025
Glyphosate 360 g/L
with Metsulfuron-methyl 600 g/kg (Various products)
Rate: 1:1.5 glyphosate to water + 1 g metsulfuron to 1 L water
Comments: Stem injection
Withholding period: Nil.
Herbicide group: 9 (previously group M), Inhibition of 5-enolpyruvyl shikimate-3 phosphate synthase (EPSP inhibition)
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. |
Western |
Regional Recommended Measure* (for Regional Priority - Eradication)
Land managers should mitigate the risk of the plant being introduced to their land. Land managers should eradicate the plant from the land and keep the land free of the plant. A person should not deal with the plant, where dealings include but are not limited to buying, selling, growing, moving, carrying or releasing the plant. Notify local control authority if found. |
*To see the Regional Strategic Weeds Management Plans containing demonstrated outcomes that fulfil the general biosecurity duty for this weed click here |
Reviewed 2024