Lawn Fungicides

Most lawns will suffer from disease at some point throughout the year.

This includes certain characteristics like discolouration, brown dry patches or signs of fungi; the most common ones found in the UK are red thread, fusarium patch and fairy rings.

We've listed a few things to look out for below.

Red Thread

Thriving off mild and damp conditions, Red Thread is probably the most common fungal disease found in the UK.

It can occur on lawns with poor light or soil and after heavy periods of rain during which nitrogen – an essential ingredient for grass growth and colour – is washed out from the soil. From a distance the symptoms can appear as sporadic red or brown patches but upon closer inspection red needle type threads can be found growing on the grass plant leaves.


Fusarium is a turf disease after high levels of humidity, surface wetness during cooler temperatures or following a blanket of snow.

Disease symptoms can appear as small circular patches and causes the grass plant to literally go mouldy, changing the appearance from green to orange brown, followed by a straw colour.

Fairy Rings

Fairy Rings disease appears in ring-like circles.

There are 3 types:

  • ​​This is where deep green, healthy-looking grass is surrounded by an outer ring of dead grass and is the result of the soil being starved of essential nutrients
  • These are visible dark circles of healthy-looking grass that upset the look of a lawn
  • Whilst it doesn’t have any noticeable effect on the grass itself, mushrooms and fungi grow on the surface in a patchy ring-like form and usually appear around autumn

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Serving local areas from Doncaster, Rotherham, Barnsley, Pontefract, Wakefield and Sheffield for over 20 years.

0800 160 1266