A weed is any plant requiring intervention to reduce its effect on our environment, economy, human health and amenity. They compete with and often outperform our native plants causing a devastating effect on our natural bushland, reducing food sources and habitats critical to the survival of our native wildlife. Council is committed to reducing the negative impacts weeds pose to our community.  Please report weeds in our parks and reserves to us for investigation. 

DPI Weed Alerts

The Department of Primary Industries Biosecurity urges the community to be on the lookout for weeds that pose a significant biosecurity risk to NSW.

Parthenium weed

Parthenium weed has been found at twelve locations across NSW and DPI urges the community to be on the lookout for flowering parthenium plants. It invades crops and pastures and can cause allergic reactions in people, including dermatitis and respiratory problems and can cause health problems in dogs and livestock. Parthenium Weed PDF

If you think you have seen this weed, note the location and call NSW DPI Biosecurity on 1800 680 244.

Priority Weeds on the Northern Beaches

Weeds and the risk they pose to the environment, agriculture industry and human health cannot be managed effectively unless we share responsibility. Council staff plan, manage and control weeds within the local government area to ensure compliance with the NSW Biosecurity Act 2015, regulations and standards and will help you identify weeds on your property. Changes in NSW legislation in 2017 saw the former Noxious Weeds Act 1993 repealed and replaced by the NSW Biosecurity Act 2015 and Biosecurity Regulation.

Council uses the NSW Biosecurity Act 2015 and local management plans to determine priority species and may require you to take action to remove them from your property. Weed management is now a shared responsibility divided into three priority weed categories; state, regional and local.

State and Regional priority weeds where identified through the development of the Greater Sydney Regional Strategic Weed Management Plan and outcomes for these weeds demonstrated compliance with the General Biosecurity Duty for the species listed in Appendix 1 of this plan.

Local priority weeds have been identified by Northern Beaches Council through the development of the Local Priority Weed Management Plan (in draft) and outcomes for these weeds demonstrate compliance with the General Biosecurity Duty for the species listed in the action table. 

How are Weeds Spread

Weeds reproduce and spread by many methods and may have special adaptations to assist their dispersal. These include seeds, berries, tubers, runners, rhizomes and separated root fragments. Nature plays a big part in spreading weeds over small distances in wind and water.

Many weeds were introduced to Australia as ornamental plants or for herbal medicine which have since 'escaped' and are now impacting natural areas.

Tips for Weed Control

As a general rule, any weed should be controlled before flowering so seeds cannot develop. Any part of the plant capable of reproducing, such as tubers, rhizomes, seeds and berries should be placed in a bag and removed off site or carefully placed in Council’s green waste bin. Plant debris can also be composted on site. Contact Council’s Weeds Officer on 1300 434 434 for more information.

Weed profiles

View the weeds that must be controlled or removed under the NSW Biosecurity Act 2015

Weeds on private property

Council officers can provide information and advice on how to control weeds, although we do not undertake work on private property.