Australian Macadamia Society

Gut contents analysis of macadamia predators: Who eats what and when

2024 | Islam S, Whitehouse M, Mainali B, Beach S, Tay A, Hossain Biswas J, Mottakina Akter M, Zulfiqar Rizvi S | Research report/Update

Predators play an important role in Integrated Pest Management (IPM) without cost to the grower. However, to make the most of this free labour requires understanding which predators consume which pest. Here we undertook the initial analysis to identify the pests consumed by predators in Macadamia using molecular analyses. First, we confirmed the species identifications of the predators, and then we undertook a metagenomic analysis of the gut contents of predators to establish which predators were consuming which pests in the macadamia ecosystem. This is the first of these types of analyses that we plan to undertake.

Effects of temperature during latter stages of nut development on growth and quality of macadamia nuts (full article)

1986 | Stephenson R, Gallagher E | Research Report

Nut growth was higher at 25-30C and kernel growth was reflected in higher kernel recovery. Oil accumulation was most rapid at 25C. At high temperatures, kernel weight actually declined. Extreme temperatures at later stages of nut development adversely affect kernel quality.

Understanding macadamia water transpiration: 2019 Tree water relations course presentation, Theunis Smit (Bundaberg)

2019 | Australian Macadamia Society | Video

Presentation on 'Understanding macadamia water transpiration' by acclaimed water relations researcher Theunis Smit. This presentation was part of the 2019 AMS Tree Water Relations courses that examined the essential role of water management in macadamia in both dryland and irrigated orchards.

Understanding macadamia water transpiration: 2019 Tree water relations course presentation, Theunis Smit (Yamba)

2019 | Australian Macadamia Society | Video

Presentation on 'Understanding macadamia water transpiration' by acclaimed water relations researcher Theunis Smit. This presentation was part of the 2019 AMS Tree Water Relations courses that examined the essential role of water management in macadamia in both dryland and irrigated orchards.

Unlocking the secrets to high orchard productivity - the Small Tree High Productivity Initiative

2017 | Queensland Agriculture | Video

The Small Tree High Productivity Initiative involves a team of 35 scientists, working towards transforming the efficiency and productivity of avocado, macadamia and mango orchards.

Cincturing to control Abnormal Vertical Growth

2012 | Department of Agriculture and Fisheries | Video

Dr Danielle Le Lagadec from the Bundaberg Research Facility explains how AVG affects macadamia trees and how cincturing induces them to flower and set nuts. Scott Allcott, the manager of Macadamia Farm Management, has been trialling cincturing for 5 years and he demonstrates how to cincture trees and discusses the results and costs involved.

MC13014 Advancing the timing of first commercial harvest using trunk girdling

2018 | Thorp G, Smith A | Research report/Update

A research project was designed to assess the trunk girdling as a way of producing more crop on young trees (MC13014, Macadamia propagation and precocity). The research tested the effect of trunk girdling on 3- and 4-year-old trees in an orchard near Knockrow in the Northern Rivers, with promising results.

MC13009 TNSC - an unfolding story

2017 | Vimpany I, Bryen L | Research report/Update

Summary of the results of a 3-year project to assess the potential for and benefits of measuring total non-structural carbohydrate (TNSC) in macadamias as a way of improving crop yields.

MC13009 Total non-structural carbohydrate testing in macadamias (Final)

2017 | Vimpany I | Research report/Update

Trees in orchards in Bundaberg and Northern Rivers were sequential samples for levels of total nonstructural carbohydrate in an attempt to explain cropping behaviour.

MC15007 Still Wild about Macadamias - conserving a national icon (Final Report)

2019 | Gould L | Research report/Update

A final report on project (MC15007), Still Wild about Macadamias - conserving a national icon, has just been released. The report details the successful completion of the project, whose objectives were to: • improve understanding and management of the threats to wild macadamia trees • promote and drive the protection and conservation of threatened wild populations • help protect other rainforest flora and fauna, including several threatened species and ecosystems.

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