Leonz,
You mentioned weed barrier fabric several times. I am assuming you are referring to the sorta ground carpet put in place to block sunlight. Would it be your intention to put this under/directly adjacent to the hedgerow? I have used these before with varying success and I think you are right, in order for it to work, it must be a high quality one properly installed. My main invasive weed is Japanese honeysuckle. It is a beautiful, fragrant vine that grows all year long, even through snows, takes over hill and dale if allowed and can completely smother an entire hedge. My only success has been at cutting it off at the root level and keep cutting it off. Otherwise, I have seen the stuff take down 40' hardwood trees by chocking them out.
My point. I Think a flail would work nicely for this invasive, but you mentioned the arrival of invasives AFTER mowing. Are you referring to those invasives that will thrive due to increased sunlight? I am not entirely certain what the connection is between flail mowing and invasive species.
You have a wealth of knowledge for the newbies here. We appreciate it.
SI2305
JD 2305
200CX, LX4, 60" Grader blade, 60" LandPride finish mower that replaced our old lawn mower, middlebuster, home made grass rake for long field grass collection, and now a specialized trailer to move heavy logs