Eucalyptus Tree

Dark Brown Sap on Silver Dollar Eucalyptus

westrup1 added on April 30, 2015 | Answered

My silver dollar eucalyptus has a brown crystal looking sap on under its bark. What can it be?

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Certified GKH Gardening Expert
Answered on April 30, 2015

Sap is not typically a big problem with these trees unless there is a pest problem or disease present. I would inspect your tree for Eucalyptus Longhorned Borers, which are attracted to trees in drought. For more information, please visit the following link:

For more information on the care of silver dollar trees, please visit the following link:

For more reasons why trunks ooze sap, please visit the following link:

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