Macadamia integrifolia x

“Guava moth resistant”
From a heavy bearing tree with fruit that are not attractive to the Guava Moth. Most macadamias have fruit that are ‘stung’ by guava moth and have active larvae feeding on the inside tissue of the green nut husks. This causes trees to shed nuts before they are fully ripe and often these nuts have the actual nut itself infected. Neighbouring trees to this one have had 50% of fruit infected whereas this single tree would have less than 1% ever showing damage. 
Trees show a lot of variability so there is no way of knowing if seedlings from a resistant tree will continue to be resistant but if you have heavy guava moth present it may be a way of growing a resistant tree. 
Fruit has a distinctive pointed end, shells are smooth, nuts are mostly large, with an average shell thickness with great flavour. Ripe seeds on the parent tree do not often fall from the tree and are retained by the green husk so can be picked off the tree after mid-winter rather than gathered off of the ground. This avoids attracting rats which love macadamias.