Macadamias

MacadamiasThe Australian Macadamia Society represents the biosecurity interests of macadamia producers and the industry. They are members of Plant Health Australia and signatories to the Emergency Plant Pest Response Deed. Their responsibilities include:

  • biosecurity planning and implementation at the national and farm levels
  • liaising with federal and state governments on trade issues
  • funding and supporting biosecurity initiatives
  • participating in national committees and response efforts in an emergency.

Industry overview

In 2016–17, macadamia production was valued at $241 million (LVP), with exports worth $291 million. Annual production from approximately 750 growers on 25,000 hectares is approximately 53,000 tonnes in-shell or 16,000 tonnes of kernel.

Approximately 70 per cent of the crop is exported, principally to Europe, the United States, Japan and other Asian countries as kernel and to China in-shell. Australia is currently the world’s largest producer of macadamia kernel. South Africa and Kenya are the other major producers.

In Australia the majority of plantings are varieties of Macadamia integrifolia. Of these about 75 per cent are Hawaiian varieties with the remainder being Australian. Five new Australian-bred varieties have been released in the last few years including MCT1, a small precocious and high yielding variety that is proving very popular. Harvest commences in March and runs through to August.

Macadamias are grown along the eastern seaboard of NSW and Queensland, from Port Macquarie in the south through to the Atherton Tablelands in the north. About half of the Australian crop is produced in NSW and half in Queensland. Production is growing fastest in Bundaberg in Queensland and the Clarence Valley in NSW. New plantings are also being developed in Mackay, Maryborough and Emerald in Queensland and in the Richmond Valley in NSW.

Ownership structures are diverse and comprise a combination of family owned orchards, first time farmers, agribusiness corporates and international and joint venture investments where the scale of new plantings is increasing significantly.

To encourage biosecurity awareness within the industry, approximately 70 per cent of orchards employ professional pest scouts. The Australian Macadamia Society convenes a forum where pest pressures for the previous season are reviewed and any new pest and disease sightings reported. A number of integrated pest and disease management related research projects are currently being funded through Hort Innovation, and the Society recently distributed over 500 farm biosecurity gate signs to macadamia growers.

The macadamia industry is covered by version 3.0 of the nut industry biosecurity plan.

Annual value of macadamia production, 2007–17

Distribution of macadamia production by state and territory, 2016–17 (based on LVP)

Tree nut IBPBiosecurity Plan for the Tree Nut Industry

Biosecurity planning provides a mechanism for the macadamia industry, government and other relevant stakeholders to assess current biosecurity practices and future biosecurity needs. Planning identifies procedures that can be put in place to reduce the chance of pests reaching our borders or minimise the impact if a pest incursion occurs.

The Biosecurity Plan for the Tree Nut Industry outlines key threats to the industry, risk mitigation plans, identification and categorisation of exotic pests and contingency plans. For a copy, please contact PHA on 02 6215 7700 or email [email protected].

Macadamia-PostcardPostcard

Promotional item to support the exotic plant pest hotline 1800 084 881

Exotic pests (not in Australia)

The following is a list of high priority exotic pests of macadamias. These pests were identified during the development of the Biosecurity Plan for the Tree Nut Industry in consultation with industry, government and scientists. They have been assessed as high priority pests based on their potential to enter, establish, and spread in Australia (eg environmental factors, host range, vectors) and the cost to industry of control measures.

PHA has a range of fact sheets, contingency plans and diagnostic protocols relevant to these pests. Pest risk review documents are also available for some pests. Please contact PHA on 02 6215 7700 or email [email protected] for more information.

Common name Scientific name EPPRD Category Fact sheet Contingency plan Diagnostic protocol
Sudden oak death Phytophthora ramorum 1 FS FS FS CP DP
Tropical nut borer Hypothenemus obscurus FS
Tropilaelaps mites Tropilaelaps clareae and Tropilaelaps mercedessae FS FS
Varroa mites Varroa destructor and Varroa jacobsoni FS FS
Xylella fastidiosa Xylella fastidiosa including X. fastidiosa subsp. multiplex and pauca 2 FS FS FS FS FS FS CP DP

Other pests

The following is a list of documents for other exotic and endemic pests of the macadamia industry. Please note that this is not a complete list of pests: rather it includes pests for which documents exist in the Pest Information Document Database.

Some of the documents presented here are not  tailored to the macadamia industry and are included for information only.

Common name Scientific name EPPRD Category Fact sheet Contingency plan Diagnostic protocol
Black twig borer Xylosandrus compactus FS FS
False codling moth Thaumatotibia leucotreta syn Cryptophlebia leucotreta 2 FS CP
Glassy-winged sharpshooter Homalodisca vitripennis FS FS FS FS FS FS CP CP
Texas root rot Phymatotrichum omnivorum 2 FS FS