Please note: Some of these reports are restricted access.
- Non-destructive detection of the heartwood-sapwood barrier
SWP-T088 - 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.
This study examined the feasibility of using synthetic aperture radar (SAR) imaging to identify the heartwood-sapwood barrier in trees (Eucalyptus globoidea, Eucalyptus bosistoana and Cupressus ovensii). The dielectric properties measured of…
- The decay resistance of six Eucalyptus species after three years exposure
SWP-T085 - 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.
Durability stakes and stakelets were prepared from six different durable Eucalyptus species, (Eucalyptus bosistoana, Eucalyptus quadrangulata, Eucalyptus pilularis, Eucalyptus sphaerocarpa, Eucalyptus globoidea, Eucalyptus muelleriana). For each species, timber had been selected…
- Minimising growth-strain in eucalypts to transform processing
SWP-T087 - Access: unrestricted.
A four-year MPI Sustainable Farming Fund project 407602 was undertaken at the University of Canterbury School of Forestry (2015-2019). The driver for the project was the perceived opportunity for high-stiffness…
- 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.
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…
- Assessing the Bending and Density Properties of six Eucalypt Species
SWP-T080 - Access: unrestricted.
Small clear bending strength samples were cut from the following 16 year old trees that had already been felled for an earlier SWP durability study. E. bosistoana E. quadrangulata E.…
- Rotary peeling of 15 year old E. bosistoana and E. quadrangulata
SWP-T079 - 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.
It was demonstrated that rotary peeled veneers of good surface quality can be obtained from 15 year old Eucalyptus bosistoana and E. quadrangulata trees grown in New Zealand. The mechanical…
- Susceptibility of Eucalyptus bosistoana families to EVB defoliation across sites and families Feb/March 2019
SWP-T078 - Access: unrestricted.
In the absence of a PhD student being secured to continue the durable eucalypt health assessment work in time for the 2018-2019 summer season, Ruth McConnochie was contracted to assess…
- Durable Eucalypts - A Multi-Regional Opportunity for New Zealand’s Drylands
SWP-T076 - Access: unrestricted.
Focus Areas and Action/Goals for 2019-2022 The NZDFI has developed this regional strategy to provide a rationale and overview of its planned activities over the next three years and beyond. The…
- Dimensional Stability of Specialty Species
SWP-T074 - Access: unrestricted.
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,…
- Heartwood in Eucalyptus bosistoana (2009 plantings)
SWP-T072 - Access: unrestricted.
The ultimate goal of the NZDFI breeding programme is to exploit variation in quantity and quality of extractive content to identify superior families in terms of heartwood content and quality.…
- Molecular deformation of wood and cellulose studied by near infrared and Raman spectroscopy
SWP-T071 - Access: Executive.
Eucalyptus can be alternative plantation species to radiata pine for New Zealand. One major problem preventing eucalyptus wood from high-value uses is its high growth-stress level, which causes problems in…
- Hybrid growth models for Eucalyptus globoidea and E. bosistoana: Explaining within and between site variability
SWP-T070 - Access: unrestricted.
Plantation forests play a major role in satisfying many forestry needs such as demand for wood and different ecosystem services, which are projected to increase in the future. In New…
- Extending durable eucalypt species research by establishing new demonstration trials in 2018
SWP-T069 - Access: unrestricted.
While the NZDFI genetic improvement programme is concentrating efforts and resources on a few promising candidates, these and a broader list of species of interest are being evaluated in demonstration…
- Economic impact of eucalyptus tortoise beetle (Paropsis charybdis) in New Zealand
SWP-T067 - Access: unrestricted.
A number of tree species in the genus Eucalyptus are grown in New Zealand on a small scale. However, the economic value of this resource is not known. The economic impact of…
- The decay resistance of six Eucalyptus species in stake and stakelet trials after two years exposure
SWP-T066 - Access: Executive.
Durability stakes and stakelets were prepared from six different durable Eucalyptus species, (Eucalyptus bosistoana, Eucalyptus quadrangulata, Eucalyptus pilularis, Eucalyptus sphaerocarpa, Eucalyptus globoidea, Eucalyptus muelleriana.) For each species timber had been…
- Optimising new PSP locations for durable eucalypts
SWP-T065 - Access: unrestricted.
As part of an effort to develop a forest industry based on durable hardwood eucalypts in New Zealand, a network of sample plots for numerous species has been established throughout…
- Core funded aligned research on insects and fungi on species other than radiata pine 2017/2018
SWP-T061 - Access: unrestricted.
Plantation species other than Pinus radiata (radiata pine), specifically 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 most…
- Bioactivity of Heartwood Compounds
SWP-T060 - Access: Executive.
This report is based on work according to SWP Work Plan No. SWP-WP026. The results are part of Gayatri Mishra’s PhD thesis, of which the relevant chapters are attached in…
- LVL Stiffness Calculator User Guide
SWP-T059 - Access: unrestricted.
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.…
- Pre application consultation has begun for a new potential biological control introduction to control Eucalyptus tortoise beetle, Paropsis charybdis
- Access: unrestricted.
April, 2018. Background The Farm Forestry Association, and Scion have been collaborating for the last 5 years on a project to get a new biological control agent into New Zealand…
- Eucalyptus variegated beetle creates concern for eucalypt growers
- Access: unrestricted.
Annoying Australians are over here and eating ‘our’ eucalypt trees. Seven different tortoise beetles, named because their round bodies resemble a tortoise, have arrived in New Zealand and have been…
- Sapwood Depth Tool – Proof of Principle
SWP-T054 - Access: unrestricted.
This research aims to develop a sapwood tool that can determine the sapwood/heartwood interface based on electrical resistance measurements with minimised set-up time. This report shows the first developed lab-based…
- Developing GC methods for analysing the foliar chemistry of durable eucalypts: a potential pest-tolerance screening tool
SWP-T052 - Access: unrestricted.
The objective was to develop and test methods (foliage preparation and gas chromatography method development) for assessing the foliar chemistry of durable eucalypt leaves to determine if foliar chemical analysis can…
- NZDFI Biosecurity Risk Management Plan
SWP-T051 - Access: unrestricted.
A number of new biological threats to eucalypts have recently become established in New Zealand. NZDFI are particularly concerned about the risk of spreading myrtle rust and EVB (Eucalyptus variegated…
- Heartwood in Eucalyptus bosistoana (2010 plantings)
SWP-T046 - Access: unrestricted.
The measurement of natural durability is resource intensive (Harju and Venäläinen, 2006; Li and Altaner, 2016b). High resource demands prevent this trait from being included in breeding programmes. However, the…
- Natural durability: Correlation between extractive content and fungal assay
SWP-T045 - Access: unrestricted.
The main objective of this work was to validate if extractive content (EC) predicted by NIR spectroscopy correlated with mass-loss durability measurements. 7 year-old Eucalyptus bosistoana heartwood samples with known EC…
- Durable eucalypt forests – a multi-regional opportunity for investment in New Zealand drylands
SWP-T044 - Access: unrestricted.
We believe our vision for the establishment of a durable eucalypt plantation estate is a unique opportunity to add value to New Zealand’s current forest industry. With our elite breeding…
- LVL Trial: Pre-Harvest Stand Assessment
SWP-T042 - Access: unrestricted.
Two trials located in Marlborough have been assessed as a potential source of peeler logs to carry out a peeler study. The trials are: E. bosistoana trial planted in 2003…
- Durable eucalypt forests: A multi-regional opportunity for investment in NZ drylands
SWP-T041 - Access: unrestricted.
This consultation paper is the first step in a process to develop the New Zealand Dryland Forests Initiative (NZDFI) regional strategic plan, focusing on the establishment of durable eucalypt forests…
- Prediction of Extractive Content of Eucalyptus globoidea Heartwood Using Near Infrared Spectroscopy
SWP-T040 - Access: unrestricted.
A dissertation submitted in partial fulfilment of the requirements for the Degree of Bachelor of Forestry Science BForSc (Hons) Abstract Natural durability of wood is highly sought for a number of wood…
- Performance of naturally durable eucalypt posts in Marlborough vineyards
SWP-T039 - Access: unrestricted.
The area of vineyards in New Zealand is up from that reported in 2015, which was 35,463 ha. Posts in a vineyard average 500-600 per hectare so there are approximately…
- Quantifying compounds in heartwood extractives of durable eucalypts
SWP-T037 - Access: unrestricted.
It is known that the relative amounts of heartwood compounds differ between trees of the same species (Fries et al., 2000; Haupt et al., 2003; Partanen et al., 2011). This…
- Potential for Growing and Processing Durable Eucalypts in New Zealand
SWP-T036 - Access: unrestricted.
In NZ there is considerable commercial interest in finding alternative forest species to radiata pine which (1) are naturally durable and do not require chemical preservative treatment for either in…
- Pest management for durable eucalypts
SWP-T029 - Access: unrestricted.
One of the more unexpected and important results from the phenology study summarised here, was that only one generation of P. charybdis was observed in each of the two years monitored. This…
- Heartwood in Eucalyptus bosistoana (2010 plantings)
SWP-T028 - Access: unrestricted.
The objective of this work is to screen the 2010 E. bosistoana breeding population for heartwood quantity (diameter) and quality (extractive content) CONCLUSION Variation in heartwood diameter between the families was observed,…
- Modelling growth of Eucalyptus spp. on New Zealand dryland micro-sites
SWP-T027 - Access: unrestricted.
New Zealand’s planted forests are mainly established on low value land, especially land that is not useful for pastoral agriculture. Much of the low value land is found in hill country, which…
- Measuring Strain in Wet Eucalyptus Wood by NIR
SWP-T026 - Access: unrestricted.
These experiments investigated whether band shifts in the NIR caused by strain can be observed in fully water saturated eucalyptus wood samples. Air-dry samples with minor changes in moisture content…
- Improving Heartwood of Durable Eucalypts - Manuscript
SWP-T024 - Access: unrestricted.
The New Zealand Drylands Forests Initiative (NZDFI) aims to establish a new hardwood forest industry based on naturally durable eucalypts. As key a product NZDFI has identified sustainably-grown naturally durable…
- Early Heartwood Screening by Wounding
SWP-T024 - Access: unrestricted.
Trees can be screened at age (1-2 years) for wood properties such as growth stress, collapse, density or stiffness (Chauhan and Entwistle, 2010; Chauhan et al., 2013). Early selection reduces…
- 100 years of the Eucalyptus Tortoise Beetle in New Zealand
SWP-T023 - Access: unrestricted.
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…
- Predicting Strain Levels in Air-dried Wood using near Infrared Spectroscopy
SWP-T020 - Access: unrestricted.
To investigate the possibility of measuring strain using near infrared (NIR) spectroscopy, spectra of air-dried radiata wood samples were collected while under different levels of tension stress. The spectral changes…
- Calibrating NIR spectroscopy for extractive content of E. bosistoana stem cores
SWP-T017 - Access: unrestricted.
A meaningful selection/breeding programme requires the assessment of many (i.e. thousands) of individuals. The time and labour requirements of standard durability tests based on fungal decay prohibit their use in…
- Review of eucalypt wood processing issues
SWP-T016 - Access: unrestricted.
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…
- Identification of Issues and Opportunities for LVL from NZ Eucalypts
SWP-T015 - Access: unrestricted.
Information on the opportunities and possible issues for LVL made from eucalypts available or likely to be available in NZ is reviewed and summarised. While it is generally agreed that…
- Heartwood formation in young Eucalyptus bosistoana
SWP-T012 - Access: unrestricted.
Little is known about heartwood formation in young trees and published literature reports are based on heartwood of old trees. However, in the context of fast-growing short-rotation durable eucalyptus plantations,…
- Screening Eucalyptus bosistoana for Heartwood
SWP-T009 - Access: unrestricted.
Some eucalypts produce timber of highest natural durability and rich colour. Only the heartwood of trees can have these properties. However, the amount and quality of heartwood in trees is…
- Literature Review: Measuring Growth-strain by IR-spectroscopy
SWP-T002 - Access: unrestricted.
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,…