Managing Noxious Weeds

Control measures minimise the impact of weeds on the economy, community and environment.

In NSW, the Noxious Weeds Act 1993 requires certain serious weeds, known as noxious weeds, to be controlled by all landholders in the area.

Weeds are declared noxious according to the extent of the weed, available control methods and the weed’s importance. Noxious weeds have potential to become widespread and cause harm to agriculture, human health and the environment.

In New South Wales the administration of noxious weed control is the responsibility of the Minister for Primary Industries under the Noxious Weeds Act 1993.

Control Classes of Noxious Weeds

Control ClassWeed TypeExample Control Requirements
Class 1Plants that pose a potentially serious threat to primary production or the environment and are not present in the State or are present only to a limited extent.The plant must be eradicated from the land and the land must be kept free of the plant. The weeds are also "notifiable" and a range of restrictions on their sale and movement exist.
Class 2Plants that pose a potentially serious threat to primary production or the environment of a region to which the order applies and are not present in the region or are present only to a limited extent.The plant must be eradicated from the land and the land must be kept free of the plant. The weeds are also "notifiable" and a range of restrictions on their sale and movement exist.
Class 3Plants that pose a potentially serious threat to primary production or the environment of a region to which the order applies, are not widely distributed in the area and are likely to spread in the area or to another area.The plant must be fully and continuously suppressed and destroyed.
Class 4Plants that pose a potentially serious threat to primary production, the environment or human health, are widely distributed in an area to which the order applies and are likely to spread in the area or to another area.The growth of the plant must be managed in a manner that continuously inhibits the ability of the plant to spread.
Class 5Plants that are likely, by their sale or the sale of their seeds or movement within the State or an area of the State, to spread in the State or outside the State.There are no requirements to control existing plants of Class 5 weeds. However, the weeds are "notifiable" and a range of restrictions on their sale and movement exists.

Parkes Shire Council is a member of the Lachlan Valley Weeds Advisory (LVWA) Committee  and the Macquarie Valley Noxious Weeds Advisory Committee. 

Top problem weeds in the Parkes Shire

  1. African Boxthorn (Lycium ferocissimum)
  2. St John's Wort (Hypericum perforatum)
  3. Silverleaf Nightshade (Solanum elaeagnifolium)
  4. Coolatai Grass (Hyparrhenia hirta)
  5. Scotch Thistle (Onopordum acanthium)
  6. Blackberry (Rubus fruticosus)

Noxious Weeds Management Plan

Parkes Shire Council has prepared a Class 4 Noxious Weed Management Plan for the control of Class 4 noxious weeds that may be found within the Parkes Shire Council area. The objective of the plan is to minimise the impact of those plants on the economy, community or environment of NSW.

For more information contact Council's Noxious Weeds Officer on (02) 6861 2343.