Q.Pruning Old Citrus Trees
I have a property on Pico in the Azores and there are a number of lemon and orange trees that are very old. Is there any advice you could offer in addition to the RHS link and when posted publicly on this site I got the same answer. I have asked the RHS and gardeninknowhow website and have been provided with the following link, which is useful: http://extension.psu.edu/plants/gardening/fphg/pome/pruning/pruning-a-special-case-renovating-old-fruit-trees
I am guessing the trees are at least 50 years old if not older, attached are pictures of the trees, I was wondering if I should open the trees up.
Your thoughts and help would be appreciated