Proper Pruning University of Tennessee Extension – https://bess.tennessee.edu/proper-crape-myrtle-pruning/
Pruning Video- https://www.youtube.com/watch?v=WxLnmB7tJCo
NC State Resource – https://pender.ces.ncsu.edu/2022/02/how-do-i-prune-crape-myrtle/