Hoping that there may be somebody out there that could give some advice. We have a mature Strawberry Tree in our Dorset (UK) garden (Approx. 20-25ft high). Following this wet and cold winter we have noticed that it has lost more leaves than usual and doesn't have it's usual glossy green look. Most of the leaves remaining have brown/purple marks/spots on them. We are wondering if we should leave and hope that it recovers when the warmer weather finally arrives or whether it has a disease that needs treating?
http://www.plantyfolia.com/plantymag/plantymag46.php This link (in French) indicates Septoria unedonis. Chrome browser will offer to translate the page for you.
