Hi, First time on the forum so go easy on me!
I've got a problem with our lawn I can't identify. We had the turf laid about 16 months ago at our new home and parts of it have never taken off and some are starting to thin out and die back with the same problem. I have fed it all the usual NKP type fertilizers and Powerfeed etc, tried treating it for grubs which I've never seen and recently treated some test patches with fungicide which have made no visible difference either. I'm guessing it's a case of too much or not enough of something but I have no idea what - help please!!!!