2019 | Trueman S, Kamper W, Nichols J, Hosseini Bai S, Ogbourne S | Research report/Update
The update describes follow-up research to identify whether macadamia yields can be increased by better cross-pollination. This research at Sandy Creek near Bundaberg compared yields from blocks that contained single varieties - 816 and Daddow - where trees in the middle of the blocks were cross-pollinated as well as trees that were next to another variety. The results show that macadamias are not receiving enough cross-pollination and that closely interplanting different varieties and managing beehives to maximise cross-pollination may improve productivity.
2019 | Trueman S, Wallace H, Kamper W, Nichols J, Hosseini Bai S, Ogbourne S, Richards T | Research report/Update
The update describes research to identify whether macadamia nuts come from self-pollination or cross-pollination. Using genetic markers to test the paternity of nuts in two orchards, the research established that most nuts come from cross-pollination.
2018 | Howlett B, Evans L | Presentation
Powerpoint presentation details the latest research on macadamia pollination
2018 | Australian Macadamia Society | Video
Brad Howlett describes the HIA funded project on improving pollination and yields in macadamia orchards.
2018 | NSW DPI | Fact Sheet
Sugar shaking bees is a method used to detect external parasites, such as varroa mites, tropilaelaps mites and braula fly on European honey bees (Apis mellifera).
2018 | Australian Macadamia Society | Fact Sheet
During flowering growers are faced with managing both beneficial insects and pest insects. Beneficial insects are crucial for pollination and are a major asset for industry stakeholders (beekeepers). Flower pest insects, such as lace bug or flower caterpillar, can cause extreme yield losses (from 50-90% losses). These factors combine to create a challenging situation for macadamia growers to manage.
2018 | Howlett B, Goodwin M | Fact Sheet
Maximise your macadamia crop with better pollination. Many varieties of macadamias produce more nuts when cross pollinated with another variety.
2018 | Howlett B, Cutting B, Evans L, Pattemore D | Article
Do you know how much pollination is happening in your orchard? This is an important question because good pollination can increase both nut set and dry kernel weight. This article summarises how you can better understand how much pollination is occurring now, and what you can do to improve it.
2018 | Herbert S, Walton D, Wallace H | Research report/Update
Research has shown the beneficial effects of cross-pollen of macadamia varieties compared with self-pollen, but there is little research comparing varieties as pollen-parents. The aim of this study was to determine how cross-pollen from commercial varieties affects fruit development and mature nut properties, particularly the economic parameters of nut size, kernel weight and kernel recovery
2018 | Langdon K, Nock C | Research report/Update
The aim of this research by Southern Cross University was to identify the sources of pollen that produce seed, i.e. who is fathering the nuts. Preliminary, unexpected, results showed that almost a third of the mature seed in each year was self-fertilised. More work is needed to understand whether this level of self-fertilisation is unusual or more widespread. The results may be helpful for future cultivar selection and orchard design.
This website has been partly funded by Hort Innovation, using the macadamia research and development levy and contributions from the Australian Government.