Help I think I have killed my lawn
I Recently moved to a new house with a garden with a lawn (I've not had a lawn before so I was all excited about it) while the lawn looked really nice on closer inspection its half filled with moss, so I bough some lawn feed and moss/weed killer "After Cut" and put it down a week ago, but now there are big black patches on the lawn, I think I have put to much down and its burnt the grass.
Will it recover, and can I do anything to help it on its way. I have grass seed but not sure if I should put this down now or leave it a few weeks? I have watered the lawn regularly, in the hope that it will help it recover. I have also scarified the lawn.