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.
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:
- high-pressure steam
- hot water
- plant-based herbicide
- synthetic herbicide (including glyphosate)
- 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.
You can only add your own property to the no-spray list.
If you do not control the weeds we will resume spraying.