The durian and mangosteen industries are in their infancy in Australia with current plantings believed to be in the order of 11,000 and 15,000 trees respectively. The value of these industries is currently estimated to be $0.5M for durian and $0.75M for mangosteen, with industry projected values by 2010 of $12M and $6.0M respectively. These projections are based on current bearing and newly planted trees, the bearing capacity of mature trees and wholesale prices of $6.50/kg and $8.00/kg for fresh fruit.
The industries lack basic agronomic information with many of the current management techniques used in Australia transferred from SE Asia. The industries representative body, Rambutan and Tropical Exotic growers Association (RTEGA), have a clear strategic plan and this project and its outcomes were developed to assist growers with basic information on leaf and soil standards suited to the north Queensland growing environment.