See attached pics. Should I be pruning all the small "twigs" off these trees?
Certified GKH Gardening Expert
This is up to you. It is unnecessary and you do not have to prune them at all, but it would not hurt to do so. Here is an article for more information: https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/acoma-crape-myrtle-care.htm