Eucalyptus Tree

Eucalyptus approx 8 metres high, approx 30 years old

Zone 6035” | Anonymous added on February 18, 2019 | Answered

In the last 4 months I noted bark coming loose from trunk. A while later it started to fall off exposing some red/ black weepy looking patches going up the trunk; some branches at this stage had started to lose leaves and some small branches died. Approx 3 months ago we removed some soil around base as we found ants nesting there and obviously interested in the oozing matter. We treated the ants. Since then some branches have put out new growth and is at present showing buds forming. Though another branch is showing more red/black matter appearing. What product and other action can I use to attempt to control problem’? I can take photo and email direct or as message. Thank you Kind regards Kay

A.Answers to this queston: Add Answer
Answered on February 18, 2019
Was this answer useful?

Answered on February 18, 2019

It appears that you have an "ironbark", like Eucalyptus sideroxylon or possibly another species.

The bark peeling can be natural shedding as the inner bark develops and the outer bark peels off, or it can be due to an injury.

The red substance is also a natural, oxidized sweet sap exudation and is called "kino". It dries dark red or black. The ants will be attracted to feeding on the sweet kino.

Unless there is wounding that compromises the structural integrity of the tree, or pest activity other than the ants, then this should not be considered a disease condition, but rather the tree's natural defense mechanism and exudation of protective substance.

Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Eucalyptus Tree
Join Us - Sign up to get all the latest gardening tips!

Learn From
Your Peers on
Our Blog

Visit Our Blog

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More