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About Us


The Illawarra District Weeds Authority (IDWA) is the local weed control authority for the area of southern NSW, Australia covered by the local government areas of Wollongong City, Shellharbour City and Kiama Municipal Council.

The Authority is responsible for controlling priority weeds on all council owned lands including certain roadsides and vacant Crown Land through special grants.  It is also responsible for the inspection of private property for priority weed infestations and the giving of directions and advice to landholders or occupiers so that adequate control is maintained.

The IDNWA came into existence in 1992 when the abovementioned councils decided to form a special purpose council to administer and control their noxious weeds. Since July 2017 with new regulations aour name changed to Illawarra Distrcit Weeds Authority (IDWA). Each of the three constituent councils has one delegate who represents their council's interests and oversees the affairs of the Authority.  A technical sub-committee comprised of one officer from each of the three council's technical staff provides an advisory and support function to the IDWA.

Funds are provided for the working of the Authority by the State Government and the constituent councils.

Vision Statement

To encourage community action and control of prioroty weeds within the local area by approved methods and in doing so protect and enhance the natural and man made environment of the Illawarra region.

Control Authority Aims

AIM: to provide a framework for dealing with weeds biosecurity risk in the community and ensure compliance with legislation.

OBJECTIVE: to develop a Biosecurity Weed Control Plan and Management Plan. This plan will provide guidance as to how each priority weed needs to be managed and the expected outcomes needed to ensure landholders meet their obligations and responsibiltes.

GOAL: to reduce the biosecurity impact of priority weeds on the community, economy and environment of the Illawarra region by establishing mechanisms to:

i)    prevent the establishment of new weeds

ii)   elimanate or otherwise contain th epread of emerging weeds

iii)  manage the impat of existing widespread weeds

iv)  ensure public awareness of the impacts of invasive weeds is enhanced and community wide capacity in sharing responsibility for managing weed Biosecurity risk within the local control authority area is improved.




    Media coverage, field days, talks, discussions, displays


    Utilise print media, TV, radio on regular basis.  Conduct field days to promote new/alternate technology.  Promote and be involved in community events and discussions.

    Inspection of lands


    Property inspections to be undertaken on a regular basis

    Control undertaken on LCA lands


    Carry out required control measures thereby leading by example

    Liaison with key stakeholders


    Development of Regional Management Plans/LAP Involvement in Regional/Local Committees

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Deed of Agreement [128 KB]