Your Florida Dooryard Citrus Guide - Pruning

Although large machines prune closely planted trees in commercial citrus groves on a regular basis, dooryard citrus need not be pruned at all. There are exceptions: aesthetic purposes, to prevent shading of other plants, to prevent soilborne diseases, to remove cold-damaged limbs, and to rejuvenate old trees with reduced vigor, twig and small branch dieback, and small fruit.

The link address is: http://edis.ifas.ufl.edu/hs121