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Auckland Council

Why and how we control weeds

Ā mātou tikanga patu tarutaru

Why we control weeds

We manage 230 species of weeds in the region and control other vegetation.

We do this to:

  • protect and maintain assets
  • maintain infrastructure
  • keep people safe
  • meet our amenity, safety and environmental goals.

The Weed Management Policy sets out our objectives for weed management in parks and open spaces, including road corridors.

The policy defines a weed as a plant unwanted in a location.

How we decide on weed control methods

The implementation of this policy is supported by two groups:

  • Weed Management Political Advisory Group, who provide oversight on how the policy is being implemented.
  • Weed Management Best Practice Reference Group, who provide external technical advice to council as required.

To contact either of these groups, email our weed management team at

Current weed control methods

We use a range of methods to control different weeds in different environments:

  • mechanical
  • manual
  • high-pressure steam
  • hot water
  • plant-based herbicide
  • synthetic herbicide (including glyphosate)
  • biocontrol
  • no control (where no weed control is intentionally undertaken).

For more information about these weed control methods, including where and when they are used in Auckland, read our weed control methods document or email our weed management team at

​For examples, see how weeds are controlled in the Māngere-Ōtāhuhu Local Board area.

Weed control projects

Many local boards target specific problem weeds in their areas.

Some recent examples are:

  • Howick – mothplant, rhamnus
  • Waitakere Ranges – climbing asparagus
  • Rodney – climbing asparagus in Takatu.

We also have weed control programmes on the Hauraki Gulf islands and in our regional parks.

Community groups work together in and around local parks.

Join our no-spray register

If you don't want us to do any weed control with agrichemicals on the berm or park boundary of your property, you can join our no-spray register.

You can also ask for your property to be removed from the list if you no longer want to be on it, or are moving house.

To register, you will need to provide proof that you live at the address. You also need to agree to take over control of weeds in your street frontage, and the kerb and channel area of the road.

Our tip

You can only add your own property to the no-spray list.

If you do not control the weeds we will resume spraying.


 By phone

​Call us on 09 301 0101.

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