Official website of the New Zealand Farm Forestry Association


Non-durable eucalypts

Please note: Some of these reports are restricted access.

  • Forest Protection SSIF research on species other than radiata pine 2018/19
    SWP-T081 - Access: NZFFA membership. This SWP report shall at all times be kept confidential and not directly or indirectly be made available to anyone who is not an SWP member.
    June 2019
    Plantation species other than Pinus radiata (radiata pine), in particular Douglas-fir and eucalypts, form an important part of a diversified forest estate. Douglas-fir is planted over approx. 105,000 ha. and is the…
  • Dimensional Stability of Specialty Species
    SWP-T074 - Access: unrestricted.
    May 2019
    Dimensional changes caused by changes in wood moisture content (dimensional stability) can have a large impact on how the wood performs in service. Poor dimensional stability can lead to cracking,…
  • LVL Stiffness Calculator User Guide
    SWP-T059 - Access: unrestricted.
    June 2018
    This software is only intended to be used as a decision tool that enables questions to be asked about the potential suitability of a wood resource being able to supply a range of LVL grades.…
  • Eucalyptus fastigata Veneer Stiffness
    SWP-T048 - Access: unrestricted.
    May 2018
    UPT (ultrasonic propagation times) on its own is measuring both changes in density and changes in MoE, thus without an independent density measurement it is not possible to reliably determine…
  • 100 years of the Eucalyptus Tortoise Beetle in New Zealand
    SWP-T023 - Access: unrestricted.
    June 2017
    The Eucalyptus tortoise beetle, Paropsis charybdis, has been one of the most successful insect pests to invade New Zealand. One hundred years have now passed, and yet this pest continues to cause…
  • Drying Eucalyptus nitens: Screening for checking and collapse
    SWP-T022 - Access: unrestricted.
    June 2017
    Eucalyptus nitens frequently develops within-ring checks and collapse (washboarding) during drying, making the wood unsuitable for use as sawn timber. Numerous studies have tried altering drying conditions to reduce levels…
  • Eucalyptus nitens breeding plan
    SWP-T018 - Access: unrestricted.
    December 2016
    Eucalyptus nitens breeding has a long tradition in commercial forestry in New Zealand. It is nowadays the most important Eucalyptus species in the country, and as a fast-growing species of good form, it…
  • Review of eucalypt wood processing issues
    SWP-T016 - Access: unrestricted.
    August 2016
    The vast majority of eucalypt plantations worldwide (at least 20 million ha) have been established as fast-growing exotic biomass forests for pulpwood and energy in tropical and sub-tropical environments and…
  • Eucalyptus nitens Optimised Engineered Lumber (OELTM) Trial
    SWP-T014 - Access: unrestricted.
    September 2016
    The OELTM (Optimised Engineered Lumber) technology produces structural products with known, uniform and reliable properties. There is financial advantage derived from the fact that all the merchantable OELTM production output is certified…
  • Improving Drying Quality of Eucalyptus Nitens Timber
    SWP-T008 - Access: unrestricted.
    July 2016
    Eucalyptus nitens has a very high incidence of drying degrade, primarily caused by water tension stress occurring early in drying. This degrade reduces the recovery of sawn timber from nitens…
  • Selection for solid wood properties in Eucalyptus nitens
    SWP-T005 - Access: unrestricted.
    June 2016
    Eucalyptus nitens can be recognised as one of the tree species in New Zealand with an advanced breeding programme that is moving towards its fourth generation. Eucalyptus nitens is one of the most…
  • Literature Review: Measuring Growth-strain by IR-spectroscopy
    SWP-T002 - Access: unrestricted.
    July 2016
    Growth-stresses cause problems in wood processing. Current measurement methods of growth stresses are labour-intensive and destructive. Research has shown that changes in stress levels, moisture content and temperature induce molecular deformations in wood,…

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