Be Parthenium Weed Aware During Harvest

11 October 2013

Parthenium Weed is regarded as a serious threat to NSW. The weed currently infests more than eight million hectares of land in Queensland and outbreaks have previously been identified and eradicated in NSW. 

Seeds are easily spread by water, vehicles, machinery, livestock, feral and native animals and in feed and seed.  With harvest on the doorstep now is the time to be vigilant to prevent the spread of seeds during harvest on machinery and equipment making its way south from Queensland into the North West of NSW.

With harvest looming, grain growers are asked to consider the risks associated with employing contract harvesters who have been harvesting in Queensland, especially if they have crossed into NSW without being cleared by NSW Department of Primary Industries (DPI) border inspection staff.

Any contractor or landholder who operates machinery in Queensland must present their machines at the NSW DPI border inspection sites, to be cleared to cross into NSW with appropriate crossing papers.

Machinery presented clean will lessen the time it takes to be passed for crossing.

Section 47A of the NSW Noxious Weeds Act 1993 has been expanded to apply to all machinery or equipment specified by a Ministerial order and applies to entry of NSW from all states and territories.

Parthenium is an annual plant with a deep taproot and an erect stem that becomes woody with age. The creamy white Flowers of this weed contain four to five black seeds that are wedge-shaped, two millimetres long with two thin, white scales.

As a Class 1 noxious weed Parthenium Weed must be eradicated from the land and the land must be kept free of the plant. As a notifiable weed, all outbreaks must be reported to the local council within three days. The Weeds Officer will then advise the necessary action to be taken to eradicate the infestation.

Initial control costs of notified Parthenium outbreaks are covered by a contingency fund allocated by the Minister for Primary Industries however, if landholders knowingly allow contaminated machinery onto their property and an outbreak occurs, this assistance may be forfeited and the landholder may be responsible for the cost of eradication.

The location of Parthenium outbreaks on private property are kept strictly confidential.

If you suspect you have located Parthenium on you farm or in your machinery or if you suspect a plant of being Parthenium weed, please prevent its establishment in NSW by noting the location of the weed and report it to the NSW DPI Parthenium Hotline on 1800 680 244, your local Council Weeds Officer or the nearest Catchment Management Authority office immediately for positive identification and further assistance.

CMAs are changing to become Local Land Services. More information is available at:

Parthenium Weed

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