Araucarian dieback

Scott O’Keeffe. Around 15 years ago, people living in the Maleny area of Southeast Queensland noticed a decline in the health of some large mature bunya pines (Araucaria bidwillii). The crowns of the trees began turning brown, quickly followed by foliage well below the crown. Within a short time, all foliage would be shed, branches cast, and the affected tree would be dead ... Araucarian Dieback (AD) is on the move.