Finally, perhaps it’s just the time of day when you took the photo, but it appears that large trees may have grown out and over the crape myrtles. It appears that they’re in a good bit of shade.
1. If this were a home landscape where only one family were involved, the plants could be cut to the ground and the new shoots you see coming up from the base could be encouraged to make new trees.
A: Something drastic needs to be done. I see three options: 1. If this were a home landscape where only one family were involved, the plants could be cut to the ground and the new shoots you see ...