Red Gums Under Attack

Have you noticed that your red gums (marri or Corymbia calophylla) are looking sick and have large black coloured scars with the bark hanging off? 

When you walk around Roleystone you will see them along the road.  The disease is caused by a fungus which attacks the stems. The trees go into decline, the scar spreads and could go completely around the stem, thereby girdling and finally killing it.

Murdoch University scientists have been studying the disease for over 5 years. They eventually identified the pathogen as Quambalaria coyrecup. It is believed to be a native fungus so it is unusual that it is having such a major impact.

Unfortunately there is no cure for this disease but the scientists are continuing to investigate to determine the factors which lead to the disease.

The following file contains more information.  marribrochure_2.pdf  bytes

Marri Tree