Cumbungi (Typha species)

Also known as: Bullrush

Profile

Impact

Three species of Typha occur in Australia. Two are native - narrow leaf cumbungi (Typha domingensis) and broadleaf cumbungi (Typha orientalis). One is an introduced European species (Typha latifolia). Infestations of cumbungi interfere with water flows in natural watercourses and drains, and can affect water quality and access to water. 

References

Department of Agriculture, Fisheries and Forestry, Biosecurity Queensland (2013) Factsheet Pest Plant PP43, Cumbungi

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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.


2,2-DPA 740 g/kg (Propon®)
Rate: 1.0–2.0 kg per 100 L of water
Comments: Hand gun, spot spray application. For use in irrigation channels and bore drains.
Withholding period: 7 days for harvest; 2 days for grazing/foraging
Herbicide group: J, Inhibitors of fat synthesis (Not ACCase inhibitors)
Resistance risk: Moderate


Amitrole 250 g/L (Amitrole T® )
Rate: 2.3 L per 100 L of water
Comments: Spot spray application. Apply during flowering between January and May.
Withholding period: Nil.
Herbicide group: Q, Bleachers: Inhibitors of carotenoid biosynthesis unknown target
Resistance risk: Moderate


Glyphosate 360 g/L (Only products registered for aquatic use)
Rate: 13 mL per 1 L of water
Comments: Spot spray application. Apply to actively growing plants at early flowering.
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate


Imazapyr 750 g/kg (Various products)
Rate: 3 L/Ha
Comments: Boom spray in irrigration channels and drains.
Withholding period: Do not graze or cut for stock feed.
Herbicide group: B, Inhibitors of acetolactate synthase (ALS inhibitors)
Resistance risk: High


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Legal requirements

Cumbungi (Typha species) is not declared in NSW under the Noxious Weeds Act 1993.

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Reviewed 2014