I have an aphid attack on a young apple tree (since late May I think). Lots of young leaves curling at leading end of branches and further down large leaves gaining brown blotches. There appear to be a mix of aphids and eggs(?) on leaves: colour varies from light brown to black and there are one or two spots of orange.
What can I do about it? I get the sense I should remove and burn any leaf that’s effected. Is that right? Any other tips?
Our thanks to Adrian Baggaley for all the photographs. See below for Adrian’s comment.