Regulated and non-regulated pests

MPI categorises pests associated with plants and plant products into regulated and non-regulated pests. Measures are developed for the prevention of entry and or establishment of regulated pests in New Zealand in accordance with the appropriate FAO International Standard for Phytosanitary Measures (ISPM).

Regulated pests are those pests for which measures and actions would be undertaken if they were intercepted or detected. As well as quarantine pests, these also include new organisms as defined by the Hazardous Substances and New Organisms Act 1996, organisms that may be of concern to other government biosecurity agencies, vectors of associated quarantine pests, strains of non-regulated pests that are not present in New Zealand and contaminants that could be imported commodities in their own right. For example, seeds of Lolium perenne (ryegrass) are frequently found as contaminants of arable crop seed and are categorised as regulated.

Non-regulated pests are those pests for which action would not be undertaken if they were intercepted or detected.

The two quarantine categories are defined as follows:

Regulated pest
A quarantine pest or a regulated non-quarantine pest [IPPC, 1997]

Quarantine pest
A pest of potential economic importance to the area endangered thereby and not yet present there, or present but not widely distributed and being officially controlled [FAO, 1990; revised FAO, 1995; IPPC 1997]

Regulated non-quarantine pest
A non-quarantine pest whose presence in plants for planting affects the intended use of those plants with an economically unacceptable impact and which is therefore regulated within the territory of the importing contracting party [IPPC, 1997]

Non-regulated pest
A non-quarantine pest, but not a regulated non-quarantine pest, with no potential to vector a regulated pest into New Zealand

Non-quarantine pest
Pest that is not a quarantine pest for an area [FAO, 1995]