Skip to main content

Restricted Places - alligator weed

Currently Waikato Regional Council has restricted places for alligator weed and velvetleaf only.  Waikato Regional Council is responsible for controlling alligator weed and monitors all known alligator weed sites.  Do not attempt to control alligator weed yourself - call 0800 BIOSEC.

What is a restricted place?

A restricted place is an area of land that has a high risk pest plant, such as alligator weed.  Waikato Regional Council uses its statutory powers under the Biosecurity Act 1993, to declare an area a “restricted place”.  This notice prevents unauthorised removal of soil material.  Alligator weed is currently the only pest plant in the Waikato Region that requires a restricted place notices.  Restricted place notices remain in force until an authorised person formally notifies the landowner in writing.

Landowners and occupiers must not remove alligator weed or any other material, which may have come in contact with alligator weed from the place to which the notice relates; or introduce any goods of any kind to the place.

A breach of a restricted place notice can have very severe consequences such as fines and/or imprisonment as outlined by the Biosecurity Act 1993.

Why we need restricted place notices

Alligator weed can be spread by people.  For example, machinery operators, cable diggers, utility workers and subcontractors are often not aware of the potential risks their activities pose with pest plants.

Many farmers and other landowners are similarly unaware of how their land could become infested by plant pests such as alligator weed.

Not all alligator weed sties have restricted place notices.  Only sites where:

  • Some human activities causing a high risk of alligator weed being spread include; moving soil (for example subdivision), making silage, and moving stock feed (risking off-site transfer via agricultural and drainage machinery), and
  • where landowners knowingly undertake activities which cause the spread of alligator weed.

Once a restricted place notice is served the council implements a weed management plan with the landowner/s.

General conditions of a restricted place declaration for alligator weed

a)    No soil is to leave the complex while the restricted place notice remains in force.  All earth moving, tracked equipment which is intended to be moved off site must be washed down with a high pressure hose, on the infected site, to help prevent spread of alligator weed to new areas, this must be checked by Waikato Regional Council before the machinery is moved to a new site.

b)    All mown grass is to be removed from the area and taken directly to the Refuse Transfer Station and Recycling Centre in Lincoln Street, Hamilton landfill or a designated site authorised by Waikato Regional Council.  Alligator weed infected material is not to be taken to a composting facility.

c)    Access to the restricted place by a chemical applicator, or any other party approved by Waikato Regional Council, is to be allowed, as becomes necessary, for the purposes of surveying, monitoring and controlling the weed (herbicides are necessary for effective control).

d)    The owner/occupier has a strict obligation to keep all staff and contractors, current and potential residents/tenants and outside contractors who operate in the restricted place, informed of the status of this area as a restricted place.  It is the land owner that will be prosecuted the condition of a restricted place is breached.

e)    Any new sites found of alligator weed in this or any other area must be reported to Waikato Regional Council biosecurity pest plant officer immediately.

f)     The owner/occupier is required to display signs (example sign) provided by Waikato Regional Council at all entrances and exits informing of their status as a Restricted Place.

Alligator weed restricted places in the Waikato region

Restricted place notices for alligator weed are currently in place at:

  • Resolution Drive, Hamilton (map)
  • The Sanctuary, North Hamilton (Map)
  • Te Manatu Park, North Hamilton (Map)
  • River Road – Old Hamilton Dump (map)
  • Hutchinson Rd –Ngaruawahia Bypass (map)
  • Nertherville Restricted Place (map)
  • Lake Whangape (map)
  • Te Onetea Stream

Notices have also been issued to private land across the region.  Please contact Waikato Regional Council for more information about these sites.

Alligator weed high risk area maps

Known sites of alligator weed in the Waikato (Map). 

High risk areas in Hamilton (Map).

If working in and around these sites please call Waikato Regional Council 0800 BIOSEC for further information.

Related factsheets

Farm weeds

Alligator weed

Useful links

Biosecurity Act 1993 Declaration of Restricted Places