posted 10 years ago
Personally I disagree with Bill's comment above - there is something to be said for letting a tree take it's natural form. However, in this case there is nothing natural about it's form - it has been badly butchered in the recent past, hence the huge growth of near vertical water shoots. A tree growing naturally from seed is highly unlikely to end up with a growth habit like this, short of a some catastrophic storm damage or the like.
I would also wait for winter, so you can see what is going on more clearly, then wade in there. Apple trees do well with plenty of light and air circulation, so I wouldn't be afraid of taking off a lot of material. Some of the stems, if they are smallish and well placed, could be bent and trained into a more horizontal/downwards position to encourage fruiting in subsequent years.
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