How should I properly prune crab apple trees to ensure healthy growth and fruit production?

To properly prune crab Apple trees for healthy growth and fruit production, start by removing dead or diseased branches. Then, prune any crossing or crowded branches to improve air circulation. Trim back long branches to encourage new growth and fruiting spurs. Avoid over-pruning, as this can reduce fruit production. Prune in late winter or early spring before new growth begins.