Posted: 29/04/2014 at 16:28
I would stab it with a fork and scatter a mix of sand, compost, lawn fertiliser and grass seed and sweep into the holes. The lawn should be fed and weedkilled every spring. Weeds always come, they fly in the air (like dandelion seeds) or they are dropped by birds - just a fact of life. If there is a lot of moss you will need mosskiller too and then you will have to rake out the dead moss. Once you've done all that it will look worse to start with but then it will start to look a lot better.