Noxious Weeds Information

Weeds are plants that are growing out of place. Many introduced plants were grown as ornamentals or garden plants and have escaped into  natural bushland and agricultural lands and are capable of causing great environmental and economic harm.

In NSW, noxious weeds are plants that have been declared under the Noxious Weeds Act 1993 by the Minister for Primary Industries. Weeds with the potential to impact on agriculture, animal or human health or damage the environment are potential candidates for declaration as noxious weeds.

Some weeds are declared noxious throughout all NSW and some are declared noxious in particular Local Government areas.

A full list of noxious weeds can be viewed at the department of Primary Industries website at: or

There are 5 different categories of control measures that apply to noxious weeds. These include:

  • Class 1 – State Prohibited Weeds. The plant must be eradicated from the land and the land must be kept free of the plant.
  • Class 2 – Regionally Prohibited Weeds. The plant must be eradicated from the land and the land kept free of the plant.
  • Class 3 – Regionally Controlled Weeds. The plant must be fully and continuously suppressed and destroyed.
  • Class 4 – Locally Controlled Weeds. The growth and spread of the plant must be controlled according to the measures specified in a management plan published by the local control authority.
  • Class 5 – Restricted Plants. The requirements in the Noxious Weeds Act 1993 for a notifiable weed must be complied with.

The control objective for Class 4 Noxious Weeds is to minimise the negative impact of those weeds on the environment, the community and the economy.

The owner or occupier has the responsibility of controlling noxious weeds on their property. Council can take action through the Noxious Weeds Act to Order a property owner to implement measures to remove or suppress the spread of noxious weeds.

The presence of any noxious weeds in the community should be reported to Council

Noxious Weeds Information