Thats a roller chopper..they work well..looks like they are running over small mesquite and ratama..its a less expensive alternative to a hydro axe…the roller chopper combined with a good rome disk will control woody species for a time..well enough to treat with chemical and re establish native grass or site prep burning for tree plantjng…problem here is the stumps..most places in texas that do this are using it on brush species..while they do have a very robust root system…they dont have much of a stump..thats why fire..and cattle too.. are a more effective here..they have their place here as well..just not nearly as much.
