eucalyptus Gunnii

I have a eucalyptus Gunnii which was planted 2years ago.
Currently I have noticed some brown leaves with black blotches on them . These blotches are also on some of the older green leaves.
It would seem to have a disease of some sort.
Could anyone shed any light on the problem please.
I have included two images which might help.

Many thanks
pussmoth

 

Pussmoth, it would be easier to get a feeling of what the problem is if you put a photo of the whole plant up. They are generally quite healthy plants really. Although the older lower leaves can look tatty. We did have a very long cold winter, maybe it is just a stress response to this.

 

pussmoth

Thanks for the information. I will post a full image.
It does have new leaves so maybe it's o.k.
thank you again.