August 29th – I don’t know if this is the result of a natural process, a disease or a parasite but all the sycamores I’m seeing at the moment have these brown/yellow scabs on the leaves. This one was on the canal at Hopwas Hays Wood, but I’m seeing it everywhere. I’m aware of the leaf miner problem with horse chestnut trees, but didn’t think that affected sycamores. Any ideas, anyone?