Pests and disease are within mgt view and measures to alleviate are in place - from the annual report.
As to irrigation - after the last few months in Australia we have plenty water - too much really.
To my mind the major risk is development of a better alternative to the Santalis products - but given the timeframe from FDA application and full stamp of approval I will be pushing up daisies earlier ...
All DYOR and IMO of course.