I have an area that runs along a creek/ravine lined with trees (mosltly osage orange, some oak, and hickory), also in this area is a nice growth of blackberry, and other "shrubby" type vegetation, plum thickets etc. Problem is it is also choked with thick cool season grasses. I can get to most areas with an ATV and sprayer but worry about spraying and killing shrubs trees etc. Most of this area borders crop fields and would be good quail habitat if they had better nesting cover but the current dominant grasses seem to be unproductive nesting cover. Is there a good method for erradicating the cool season grasses, obviously disking is not an option? What type of herbicide might be best to spray this area?