Yellow nutgrass (Cyperus esculentus)

Yellow nutgrass is a perennial sedge-like plant. Its underground tubers can rapidly reproduce.


How does this weed affect you?

Its underground tubers can rapidly reproduce to form large populations. It contaminates seed or harvested products and may damage root crops. 

What does it look like?

Yellow nutgrass, a perennial sedge-like plant, has thick, stiff leaves. It has uderground tubers. 


It thrives in low lying or irrigated land. 

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Herbicide options

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

See Using herbicides for more information.

Glyphosate 360 g/L (Roundup®)
Rate: 10 mL per 1 L water
Comments: Spot spray
Withholding period: Nil.
Herbicide group: M, Inhibitors of EPSP synthase
Resistance risk: Moderate

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Biosecurity duty

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 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.

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Reviewed 2018