Giant rat's tail grass (Sporobolus pyramidalis)

WEED ALERT: REGIONALLY PROHIBITED WEED
If you see this plant contact your council weeds officer, the NSW Invasive Plants & Animals Enquiry Line 1800 680 244 or email weeds@dpi.nsw.gov.au

Profile

Impact

Giant rat’s tail grass is a perennial grass growing to 1.7 metres high when seeding. It occurs as a weed in pastures and bushland areas, particularly on poorer soils.

It produces leaf blades that are tough and difficult for cattle to graze, leading to reduced feed intake and reduced animal production. The seed heads are generally a ‘rat’s tail’ like spike when young and may branch to a elongated pyramidal shape when mature.

Giant rat’s tail grass is native to Africa.

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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.


PERMIT 9792 Expires 30/11/2020
Glyphosate 360 g/L (Roundup®)
Rate: 3.3 L per 10 L of water
Comments: Wick wiper application. Apply when plant is actively growing.
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate


Flupropanate 745 g/L (Tussock®)
Rate: 200 mL per 100L of water
Comments: Handgun application.
Withholding period: Don't graze cows or goats that are being milked on treated areas. Blanket sprayed pastures - grazing or cutting for stock feed - 120 days. Spot sprayed areas - grazing or cutting for stock feed - 14 days. Don't graze stock on treated areas for 14 days prior to slaughter.
Herbicide group: J, Inhibitors of fat synthesis (Not ACCase inhibitors)
Resistance risk: Moderate


Flupropanate 745 g/L (Tussock®)
Rate: 1.5–2.0 L/ha
Comments: Boom spray. Best results during late winter and early spring when desirable species are semi-dormant. Four month withholding period for blanket spray application.
Withholding period: Don't graze cows or goats that are being milked on treated areas. Blanket sprayed pastures - grazing or cutting for stock feed - 120 days. Spot sprayed areas - grazing or cutting for stock feed - 14 days. Don't graze stock on treated areas for 14 days prior to slaughter.
Herbicide group: J, Inhibitors of fat synthesis (Not ACCase inhibitors)
Resistance risk: Moderate


Glyphosate 360 g/L (Roundup®)
Rate: 10–15 mL per 1 L water
Comments: Handgun application for when plants are actively growing.
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate


Glyphosate 360 g/L (Roundup®)
Rate: 6.0 L/ha
Comments: Boom application for pasture replacement/ improvement and best done as a split treatment. Apply when plants are actively growing.
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate


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Legal requirements

The content provided here is for information purposes only and is taken from the Noxious Weeds Act 1993.

Area Class Legal requirements
Bellingen 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Central Coast 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Cessnock 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Clarence Valley 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Coffs Harbour 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Dungog 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Glen Innes Severn 2 Regionally Prohibited Weed
The plant must be eradicated from the land and that land must be kept free of the plant
Kempsey 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Lake Macquarie 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Maitland 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Mid-Coast 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Nambucca 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
New England Tablelands County Council 2 Regionally Prohibited Weed
The plant must be eradicated from the land and that land must be kept free of the plant
Newcastle 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Port Macquarie-Hastings 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Port Stephens 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Rous County Council 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Shoalhaven 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed
Tamworth Regional 2 Regionally Prohibited Weed
The plant must be eradicated from the land and that land must be kept free of the plant
Tenterfield 2 Regionally Prohibited Weed
The plant must be eradicated from the land and that land must be kept free of the plant
Upper Hunter County Council 3 Regionally Controlled Weed
The plant must be fully and continuously suppressed and destroyed

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Reviewed 2014