World Library  
Flag as Inappropriate
Email this Article

Wilding conifer

Article Id: WHEBN0016707030
Reproduction Date:

Title: Wilding conifer  
Author: World Heritage Encyclopedia
Language: English
Subject: Forestry, Craigieburn Forest Park, Forest pathology, Arapawa Island, Sanitation harvest
Publisher: World Heritage Encyclopedia

Wilding conifer

Wilding conifers, also known as wilding pines, are invasive tree species in the high country of New Zealand. Millions of dollars are spent on controlling their spread.

In the South Island, they threaten 210,000 hectares of public land administered by the Department of Conservation. They are also present on privately owned land and other public land such as roadsides. The wilding conifers are considered to be a threat to biodiversity, farm productivity and to landscape values. Since they often invade tussock grasslands - which are characterised by low lying vegetation that is considered to be a natural environment - the tall trees become a prominent and unwanted feature.

Wilding pines in the Canterbury Region.


European larch in the Jollie River.The trees have almost completely blanketed the flanks of the lower section of the valley.

There are ten main species that have become wildings:[1]

The various species dominate in different areas of New Zealand. Radiata pine (Pinus radiata) is used for 90% of the plantation forests in New Zealand[2] and some of the wilding conifer is a result of these forests.

Control measures

Without any control measures, wilding conifers will spread over an increasing area with economic and environmental consequences. As well as volunteers organised by environmental groups, regional councils and the Department of Conservation invest in wild conifer removal.

A South Island Wilding Conifer Management Group was formed in 2006 and obtained funding from the Ministry of Agriculture and Forestry Sustainable Farming Fund.[3]

Mechanical removal by hand pulling seedlings, and the use of brush cutters and chainsaws are common control methods. Spray trials are also being carried out. In 2004 a spraying operation by the Department of Conservation at Mid Dome in the Southland Region caused spray drift onto surrounding areas including the towns of Athol and Kingston.[4]

Wilding conifers by region

Locations of major wilding conifer areas. Adapted from Wilding conifers - New Zealand history and research background.[1]

Pest management is administered by regional councils. There are sixteen different regions in New Zealand and wilding confers only occur in a few of these regions, predominately in the South Island. The Department of Conservation manages wilding conifers on public land under its jurisdiction.


In its 2005 Pest Management Strategy the Canterbury Regional Council (Ecan) has the objective of eradicating all self-sown wilding conifers in ecologically sensitive areas in its jurisdiction. To do this a range of measures are used, including carrying out wilding conifer control operations, encouraging reporting of the presence of wilding conifers, encouraging the removal of seed sources and advocating changes to the district plans of the territorial authorities to prevent or control the planting of inappropriate conifers.[5]

Hawke's Bay

Wilding conifers infest the Kaweka Forest Park.


Pinus contorta infests the south Marlborough area and is classed as a "Containment Control Pest", which are pests that are managed to prevent spreading to new areas. Other wilding species exist in Marlborough but Lodgepole Pine is the focus for pest management.[6]


Pinus contorta is a pest plant listed in the Otago Regional Council Pest Management Strategy for Otago[7]


A major area of wilding conifer spread is in the Mid Dome Area in the Southland Region. The Mid Dome Wilding Trees Charitable Trust was set up in 2006 [8] and in 2008 the government allocated $54,000 from the Biodiversity Funds to control wildings on about 1000 ha in the area.[9]

See also


  1. ^ a b Wilding conifers - New Zealand history and research background, a presentation by Nick Ledgard at the "Managing wilding conifers in New Zealand - present and future" workshop (2003)
  2. ^
  3. ^
  4. ^
  5. ^
  6. ^
  7. ^
  8. ^
  9. ^

Further reading

  • (Individual chapters can be downloaded from the New Zealand Plant Protection Society)

External links

  • Wilding pines at the Department of Conservation
  • South Island Wilding Conifer Strategy (2001), Department of Conservation
  • South Island Wilding Conifer Management Group
  • Wilding Conifers in Canterbury at Environment Canterbury
  • Wakatipu Wilding Conifer Strategy at the Queenstown Lakes District Council
  • Waimakariri Ecological and Landscape Restoration Alliance
  • Royal Horticultural Society Encyclopedia of Conifers

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.