Pest Plants

Pest plants (or weeds) are one of the biggest threats to our native biodiversity along with pest animals and climate change. There are many introduced plants which are spreading throughout New Zealand, growing in our native bush areas and displacing or smothering our native vegetation. These plants generally are fast growing, hardy and some are very hard to control. 

Forest & Bird North Shore Branch chair Richard Hursthouse has compiled a weed control guide for residents, bush care groups and businesses. The guide offers a range of physical and chemical control methods. It is largely focussed on the weeds which are a problem in the Auckland and Northland regions. In time we hope to include reference to weeds which are more of a problem further south. The guide has been developed with input from many weed control contractors, Auckland Council biosecurity staff and volunteers active in the weed control space. 

You can download the Weed Control guide here.

Around the country our branches and volunteers are regularly involved in pest plant control – see the local branch pages for more details on how to take part in a volunteering near you.

Here are a few other weed control sites you may find useful:

DOC War on Weeds


Auckland Council pest plant site 


New Zealand Plant Conservation Network (NZCPN)


You can also check out our blogs on Worsts Weeds here:

Tree Privet

Wilding Pines