Sad trees.

[bobbin]

Two years ago I planted three bare root dwarf trees on my allotment. They have all struggled. The plum got really tall and straggly and pigeons ate every new leaf on it in spring so I cut it back end of June. It looks healthy now but possibly won't fruit next year...or ever! The pear is heavy with quite a lot of fruit and looks quite healthy.
However the apple ..golden delicious has a bit of fruit but all the apples are being spoilt by bugs. But the actual tree looks ..well...manky. Weak floppy stems and curled diseased looking leaves. My soil isn't great I admit but why does the tree look so poor. What should I feed an apple tree with to perk it up? I added good soil at time of planting.Advice please.
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[orangepippin]

What rootstocks are these trees grafted on? What age were the trees when you planted them? Did you cut the lead shoot back after planting? Did you allow the trees to set fruit last year?

[bobbin]

I sent for these tree from a TV offer. No info provided on rootstock or age of tree. I didn't cut lead shoot and yes let fruit set last year. Can you give any advice on how to perk the apple tree up at all?

[FB.]

Can you give any advice on how to perk the apple tree up at all?

It depends on what's making the tree unhappy. Is it the soil type? The climate? Pests? Diseases?
Are your trees in the UK or somewhere else? Being an American variety that likes a long, hot, sunny growing season, Golden Delicious often doesn't do so well in the cold, damp, dull UK climate.