Why Has This Happened To My Lawn

Question

New Lawn was laid In August last year with at least 6 to 8” of fresh soil after digging out old clay/dirt .

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Answer 1

Do you have a dog or does a neighbor dog visit? Brown spots with green edges can indicate dog urine. If not, it is likely a fungal disease. The yard in general looks like there are brown spots. These articles should help pin the problem down:

https://www.gardeningknowhow.com/lawn-care/lgen/dog-urine-grass.htm

https://www.gardeningknowhow.com/lawn-care/lgen/reasons-for-dying-grass.htm

https://www.gardeningknowhow.com/lawn-care/lgen/grass-fungus.htm

https://www.gardeningknowhow.com/lawn-care/lgen/brown-lawn-fixes.htm