Reseed Question

I have ten acres of mixed grass and weeds that I would like to reseed with Orchard grass in Sep. I did two cuttings this summer and square baled some cow/ goat quality hay. We soil tested last Aug and it recommended lime which I applied in Oct.

I'm trying to convince myself that burning off the field with Roundup prior to reseeding is a wise first step. Any thoughts?

Thanks



Reseed Question