Help with eucalyptus

Could anyone help with leaf problem with my 1 yr old eucalyptus.

The leaves have small yellow raised bits in them. Apart from that the tree seems ok, has new growth but they soon turn like this. It's in a big pot.

Picture attached.

Thanks a lot
Hugh

 

http://treephys.oxfordjournals.org/content/26/8/989.full.pdf

This is the technical explanation The short version is that it's a sort of odoema caused by high humidity. Might be worth cutting back on the watering a bit? Could you plant it out somewhere? I should think eucalyptus is a bit vigorous to keep in a pot forever....

 

Euclaytpus will be a problem if planted out after being at all root-constricted in a pot. They are best planted out when very small (larger ones are now grown using air-pots to counter the problem, but I'm not convinced that that is as good an answer as "planting tiny").

The problem is that after being pot-grown they won't put their roots out wide enough, so will be unstable and highly prone to blowing over when they are bigger. They have a bad enough reputation as "widow makers" from dropping branches without them keeling over as well!

If you are planning to keep it trimmed (or "stooled") small then it will be fine [planted out] - that will also ensure that it keeps its juvenile foliage.