Problems with apple trees

[Jeanied]

Has anyone got any way of dealing with bitter pit on my Lord Derby apple tree? I gave it a mulch of straw-y horse manure two years ago and ever since then it has had really bad problems - mottled fruit and now it has bitter pit inside. All ideas appreciated

[FB.]

Manures and green garden waste are very rich in nitrogen. Too much nitrogen and irregular rainfall cause bitter pit.
Stop feeding it nitrogen and the problem will go away.

[Jeanied]

Ops - thanks for the info FB - all my tlc was a bad idea. After a bit of research I'll do a ph test on the soil and add lime if needed- - my apple trees are going to get the cold shoulder from now on - just 2 gallons of water every week and that is it!!