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Ginger tree syndrome in Tasmanian eucalypts - death of white and blue gums

Observations and comments have been made about the deaths of white gums (Eucalyptus viminalis) and blue gums (Eucalyptus globulus), particularly in the north region of Tasmania. One theory as to the cause of this was thought to be due to drought and the trees becoming water stressed weakening their defenses against insect attack. Another recent theory is due to heat stress - the trees ooze red sap which gives the affected trees a ginger colour.  A recent ABC interview provide likely causes for the deaths of these trees as being due to heat stress, go to the link to the ABC interview http://www.abc.net.au/…/2015-0…/ginger-tree-syndrome/6263118 - an interesting read.