Kent, United Kingdom
How to treat an apple tree for mould? We planted a small Cox's Pippin last autumn and it is now in leaf but today I noticed a white mould - powdery mildew? - on the uppermost shoot. Our next-door neighbour has an apple tree that's about 5 years old near the boundary with our garden and his tree also has a white mould, and was infected last year too. On both trees the affected leaves are curling up. We would both like to know what we can safely spray the apples with as Rose Clear warns against spraying edible crops and is specifically for ornamentals. On the other hand, my Bug Gun says it's OK for edibles but it doesn't treat fungi.
- 25 Apr, 2011