Hi Pambi. Small apple trees are usually pruned in late July/August. Maybe for an early ripening Apple, such as Discovery, you might prune fruit bearing spurs about 3 leaf axils ABOVE the fruit about now. This is called summer pruning to control the length of new shoots. Save the rest for later. You can winter prune Feb/March, before anything stirs, to shape and try and keep control. Apples have a mind of their own for us amateurs though.

Bulba and I have been pruning the wee apple tree on our neighbour's garden where we grow the veggies. It had decided to put out long whippy branches s owe pruned back as Dorjac described and where there was no fruit removed completely. Poor wee tree has been neglected for years and we even had to remove a tie that was starting to cut into the trunk... no sign of the support I might add.

Thank you Moon-grower and Dorjak. I have made a note in my diary to remind me.