Posted: 22/04/2013 at 16:00
I would spray it all with glyphosate. When it's dead it's not hard to rake it all up. Then rotavate. I know it'll take longer but it's worth it. Our lawn used to be an old farmyard that a previous owner had added earth to. When we bought our house it had been empty for 6 years. The ?lawn was full of nettles brambles and weeds. We hired professionals to deal with it as we were busy doing the house. They just mowed it all then rotavated, then sowed grass and I regretted it for years afterwards. Especially as it had bindweed as well which got into the beds.