it was laid 2 years ago, and there was a pathway going from top to the bottom of the garden, which was taken up, and not properly rotavated, anyway this has not been a problem, until this month, where the turf seems to look brownish and a little green where the path used to be. What can i do to make it look healthy again, its not dead grass just yet, maybe a feed or something can help? thanks
You don't say where in the country you are but I suspect you may be in the south east.
It sounds to me that the turf over the old path (which you said hadn't been cleared properly) has been unable to send its roots as far down as the rest of your turf and as we've had so little rain in the south-east its starting to struggle.
I would suggest giving it a good feed with something long term rather than one of the instant 'green-ups' and a good water.
Hope this helps x
plenty of advice here, i use the lawn feed weed and moss killer and it workd great, as sedum says it sounds like it needs plenty of regular feed and water.