Macadamia plant protection guide


This 9th edition of the NSW Macadamia plant protection guide aims to provide commercial macadamia growers with up-to-date information on all aspects of protecting your orchard from pests and diseases.

Feature articles

This year's feature article summarises the 2022 season, including the growing conditions from flowering 2021 to harvest 2022, the pests, diseases and climate, as well as crop yields and quality. It is a year to remember for many reasons, mostly for the challenging growing conditions in NSW and delayed harvest. This article will provide an accurate resource for historical crop performances, and seasonal updates in future guides will build on this resource. If a grower is interested in what affected crops in certain seasons, the Macadamia plant protection guide will be a good resource to provide the answer.

Associate Professor Femi Akinsanmi and Dr Vivian Rincon-Florez from the Centre for Horticultural Science, QAAFI, The University of Queensland, have provided an update on the integrated disease management approach for the Australian macadamia industry.

Dr Craig Maddox and colleagues have reported on the rise in scolytid beetle activity, questioning whether it is just because of the warm weather.


The guide is available free to macadamia growers and is distributed to all macadamia processors within Australia. Copies can be collected from NSW DPI offices at Wollongbar and the Australian Macadamia Society, Local Land Services and selected rural retail stores. Every effort is made to have all macadamia growers obtain a copy of this publication.

For a hard copy of this guide, please contact Jeremy Bright on


Published: Jul 2023