Last autumn I moved house and my new small garden is full of practical fruit and herbs. There is a tree which I think is an almond (definitely some sort of Prunus) and the leaves are producing blisters from beige to scarlet in colour, curling up and falling off in quantity. The fruits seem healthy and are growing well.My cherry trees are unaffected. Any idea what this might be and how to treat it - organically if poss.
- 9 Jun, 2010