These articles are written to apply to the northeastern corner of Illinois. Problems and timing may not apply outside of this area.
Apple trees are a prime example.
There are several others, but the kind of tree or shrub needs to be considered, as exact pruning timing may vary. For example, early spring may be a good time for deciduous shrubs to be pruned, or it may not. The determining factor is when the shrub blooms. If it's a spring bloomer, wait until just after flowering to prune or you'll be cutting off flower buds. As a group, early spring is not the time for most evergreens to be pruned, in particular pines.