In the “South Island wilding conifer strategy

  1. Belton, M.C.; Ledgard, N.J. 1991: A study of the spread of exotic trees in Canterbury high country. Journal of the New Zealand Mountain Lands Institute Review 48: 41-50

  2. Ledgard, N.J. 1993: Conifer spread in the Amuri Range area: range, composition, likelihood of future spread and management options. NZ Forest Research Institute Contract Report FRI 0118/33. 23p.

  3. Newfield, M. 1999: Invasive Weed Management Strategy, Nelson/Marlborough Conservancy, Department of Conservation, Nelson. 58p + appendices.

  4. Ledgard, N.J. 1996: Operational plan for the control and management of introduced conifers in the Red Hills, Gordons Range and Beebies Ridge area of Richmond Forest Park. NZ Forest Research Institute Contract Report, FRI, Rangiora.

  5. Hunter and Douglas, 1984: Cited in: Ledgard, N.J. 1988. The spread of introduced trees in New Zealand's rangelands - South Island high country experience. Journal of the Tussock Grasslands and Mountain Lands Institute, Review 44: 1-8.

  6. Richardson, D.M.; Williams, P.A.; Hobbs, R.J. 1994: Pine invasions in the Southern Hemisphere: determinants of spread and invadability. Journal of Biogeography 21: 511-527.

  7. Webb, C.J.; Sykes, W.R.; Garnock-Jones, P.J. 1988: Flora of New Zealand Volume IV: Naturalised Pteridophytes, Gymnosperms, Dicotyledons. Botany Division, D.S.I.R., Christchurch. 1365p.

  8. Ledgard, N.L.; Baker, G.C. 1988: Mountainland Forestry: 30 years' research in the Craigieburn Range, New Zealand. Forest Research Institute Bulletin No.145, Ministry of Forestry, Christchurch. 64p.

  9. Critchfield and Little, 1966: Cited in: Richardson, D.M.; Williams, P.A.; Hobbs, R.J. 1994. Pine invasions in the Southern Hemisphere: determinants of spread and invadability. Journal of Biogeography 21: 511-527.

  10. Owen, S.J. (compiler) 1997: Ecological Weeds on Conservation Land in New Zealand: A Database (January 1977 working draft). Department of Conservation, Wellington.

  11. Wishart, 1984, Cited in: Ledgard, N.J. 1999: The spread of exotic conifers at Mid Dome/Cupola, Southland: present situation and future management options. NZ Forest Research Institute Contract Report. Forest Research, Christchurch. 21p + maps.

  12. Ledgard, N.J. 1999: The spread of exotic conifers at Mid Dome/Cupola, Southland: present situation and future management options. NZ Forest Research Institute Contract Report. Forest Research, Christchurch. 21p + maps.

  13. Ledgard, N.J.; Langer, E.R. 1999: Wilding Prevention Guidelines. NZ Forest Research Institute Ltd., Christchurch. 20p.

  14. Ledgard, N.J. 1989: The spread of Douglas fir into mountain beech forest on Burnt Face, Craigieburn Forest Park. Forest Research Institute Contract Report. Forest Research Institute, Christchurch. 3p. (Also see: unpublished results of 1996 re-survey of site. 5p).

  15. McNamara, R. 1998: Inventory and Threat Assessment of Wilding Trees to Department of Conservation Managed Lands Within and Surrounding the Mackenzie Basin. Unpublished Report, Department of Conservation, Twizel. 43p + appendices.

  16. Ledgard, N.J.; Belton, M.C. 1985: Exotic trees in the Canterbury high country. NZ Journal of Forestry Science 15: 298-323.

  17. Ledgard, N.J. 1988: The spread of introduced trees in New Zealand's rangelands - South Island high country experience. Journal of the Tussock Grasslands and Mountain Lands Institute, Review 44: 1-8.

  18. Ledgard, N.J.; Crozier, E.R. 1991: Guidelines for the control and management of wilding trees in the Canterbury high country. FRI Contract Report FWE 91/4. Forest Research Institute, Christchurch. 13p.

  19. Hobbs, R.J. (undated): Dynamics of Weed Invasion: Implications for Control. CSIRO, Midland, Australia.

  20. Johns and Molly, 1983: Cited in: Richardson, D.M.; Williams, P.A.; Hobbs, R.J. 1994. Pine invasions in the Southern Hemisphere: determinants of spread and invadability. Journal of Biogeography 21: 511-527.

  21. Colbourne and Kleinpaste, 1983: Cited in: Williams, P.A.; Timmins, S.M. 1990. Weeds in New Zealand protected natural areas: a review. Science and Research Series No.14. Department of Conservation, Wellington. 114p.

  22. Clout and Gaze, 1984: Cited in: Williams, P.A.; Timmins, S.M. 1990. Weeds in New Zealand protected natural areas: a review. Science and Research Series No.14. Department of Conservation, Wellington. 114p.

  23. Williams, P.A.; Timmins, S.M. 1990: Weeds in New Zealand protected natural areas: a review. Science and Research Series No.14. Department of Conservation, Wellington. 114p.

  24. Davis and Lang, 1991? Cited in: Rosoman, G. 1994: The Plantation Effect. Greenpeace New Zealand, Auckland. 48p.

  25. Rosoman, G. 1994: The Plantation Effect. Greenpeace New Zealand, Auckland. 48p.

  26. O'Loughlin, 1986: Cited in: Rosoman, G. 1994. The Plantation Effect. Greenpeace New Zealand, Auckland. 48p.

  27. Dons, 1987: Cited in: Rosoman, G. 1994. The Plantation Effect. Greenpeace New Zealand, Auckland. 48p.

  28. Duncan, 1993: Cited in: Rosoman, G. 1994. The Plantation Effect. Greenpeace New Zealand, Auckland. 48p.

  29. Electricorp, 1993: Cited in: Rosoman, G. 1994. The Plantation Effect. Greenpeace New Zealand, Auckland. 48p.

  30. Ashdown, M.; Lucas, D. 1987: Tussock Grasslands: Landscape Values and Vulnerability. NZ Environmental Council, Wellington. 119p.

  31. Harding, M.A. 1994: Thinking about change in the high country. Forest and Bird 274: 5.

  32. Bertram, G. 1999: The impact of introduced pests on the New Zealand Economy. In: Pests and Weeds: A Blueprint for Action. NZ Conservation Authority, Wellington. p45-71.

  33. Maw, R.K. 1999: Unpublished Policy Analysis Case Study. Do the benefits outweigh the costs? A case for wilding tree control. 14p + appendices.

  34. Mark, A.F.; McFarlane, D. 1998: Wild, unwanted trees. Forest&Bird 290: 28-29.

  35. Cooper, W. 1999: Wilding trees in Southland Conservancy: A status review. Unpublished Report. Department of Conservation, Invercargill. 6p.

  36. Crozier, E.R. 1990: Chemical control of wilding conifer seedlings. Proceedings of the 43rd NZ Weed and Pest Control Conference: 182-186.

  37. Brockerhoff, E.G.; May, M. 1998: Prospects and risks of biological control of wilding Pinus contorta in New Zealand. Proceedings of the 51st NZ Plant Protection Conference: 216-223.

  38. Stephens, S.; Brown, D.; Thornley, N. 2000: Conservation Achievement: The Twizel Area. Draft Summary Report. Department of Conservation, Christchurch.

  39. Owen, S.J. 1998: Department of Conservation Strategic Plan for Managing Invasive Weeds. Department of Conservation, Wellington. 86p.

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