Hello guys,

I have problems with my eucaluyptus globulus plants.

The plants are now 21 months old and are kept in pots. They are watered and fertilized regularly.

However, several plants now get such purple spots (see pictures) and as a result the leaves and branches also die. It is as if the water and nutrient supply is interrupted. Cutting them off does not help, because the purple spots continue to work their way down. Eventually the whole tree dies.

I have of course already tried to find out what the problem is. Unfortunately, the internet has not helped me either. No indication of a disease or something similar.

Therefore my question: What is the problem and how can I prevent such damage in the future? Is a disease or a care mistake?

Thanks a lot for your help.