United Kingdom 
I have a bay tree in a pot it orange marks on its leaves. Please can you tell me what it is and how I can treat it. I live in Kent..
9 May, 2011
Previous question
United Kingdom
I have a bay tree in a pot it orange marks on its leaves. Please can you tell me what it is and how I can treat it. I live in Kent..
9 May, 2011
Previous question
A photograph would be useful, but if the orange 'marks' are like something sitting on the leaf rather than within the leaf tissue, it could be rust infection. If it is that, spray with an appropriate fungicide.
9 May, 2011