National Pest Plant Accord

For New Zealand to be able to trade internationally, MPI must be confident that the products associated with agriculture, horticulture, aquaculture and apiculture are free from unwanted pests and diseases.

The National Pest Plant Accord (NPPA) is a cooperative agreement between the Nursery and Garden Industry Association, regional councils and government departments with biosecurity responsibilities.

All plants on the NPPA are unwanted organisms under the Biosecurity Act 1993. These plants cannot be sold, propagated or distributed in New Zealand.

National Pest Plant Accord Manual

This manual contains photographs and descriptions of plants that are considered pests throughout New Zealand. All of these plants are present in New Zealand, and are banned from sale, propagation and distribution.

The information included in this manual is correct at the time of printing (July 2012) and will be updated on a regular basis. Thirteen new species were added to the Accord in May 2012. If you wish to receive updates to the manual as they become available, please contact your regional council or e-mail

A tool for identifying NPPA and weed species can be found online at (offsite link to (with the shortcut (offsite link to

The new interactive key covers more than 500 taxa (species, subspecies, varieties, hybrids and cultivars) including National Pest Plant Accord (NPPA) list of species banned from sale, distribution, and propagation in New Zealand, the Department of Conservation consolidated list of environmental weeds in New Zealand (Howell, 2008 (offsite link to, and Regional Pest Management Strategy (RPMS) species. Other weeds are included in the key along with similar and related species.

This Lucid™ key was developed by Murray Dawson and Peter Heenan at Landcare Research, as well as Sheldon Navie (University of Queensland), Trevor James (AgResearch), and Paul Champion (NIWA). The key is illustrated with more than 9000 images and runs using 48 characters and 217 character-states.

This identification key is freely available thanks to funding from the Terrestrial and Freshwater Biodiversity Information System (TFBIS) Programme (offsite link to The TFBIS Programme is funded by the Government to help to achieve the goals of the New Zealand Biodiversity Strategy, and is administered by the Department of Conservation.

NPPA Annual Reports

Other Reports

Page last updated: 29 April 2015