I was going to 'round up' one of my plots, until my dad told me that when they use it at work, all the worms come up and look like they are in agony and if they could scream they would be

was enough to put me off using any, especially on a large scale.
Opting for digging it over during autum and covering with horse poo, cardboard and black plastic

Hopefully that will work ok.............. just got to dig it first.
Was tempted to just turn the grass over and let it rot down over winter, obviously pulling the weeds as we go? then the above....