Project Brisbane


Biological control of Phellinus noxius (Brown root rot)
Brown root rot was discovered in Brisbane City Council parks in 2006 and, in 2008, many of New Farm Park's landmark jacaranda trees were fenced off or cut down as the Phellinus noxious pathogen spread. In Brisbane, it has attacked figs, poinciana, jacarandas, chinese elms, Moreton Bay eucalypts, kauris and hoop pines.

In vitro studies by Schwarze and his co-workers show that Trichoderma species can be used to significantly reduce the growth and rate of wood decomposition by different Phellinus noxius strains.

Subsequent field trials by Brisbane City Council and ENSPEC show that after 12 weeks, new roots grow in the infected trees after the brown root rot disease, which forms a "mouldy stocking", covers the trees.

 
 
Keith Foster, Senior Coordinator Arboriculture, Brisbane City Council applying Trichoderma to roots of an infected Fig tree.
Keith Foster, Brisbane City Council:

“A great outcome, I would like to thank you so much for your help, the trees that we have used the Trichoderma on are all recovering.
The Banyan fig at Shorncliffe prior to introducing the Trichoderma had little leaf in the canopy and what leaf was left were yellow, now it has a new canopy of leaf with a dark green color“. Amazing.

“Once again thank you, without you help, we would not have been in a situation where we can manage the diseased trees, they would have been lost.“


 
pdfPDF (Download the complete scientific publication)