Category Archives: Red Thread Lawn Disease

Red thread lawn disease is a fungal disease which usually infects lawns during damp periods of warm weather.

An infection can be easily spotted, as it manifests itself as red and pink circles on the lawn which increase and coalesce to infect a whole lawn.

In these pages, find out how when to look out for an attack of red thread, how to identify it, what it can do to your grass and how to control it.

Red thread lawn disease (Laetisaria fuciformis)

Red thread fungus infecting grass

Red thread (Laetisaria fuciformis) is a parasitic fungal disease which infects grass. It can appear in conjunction with pink patch lawn disease, causing similar symptoms. The disease causes areas of grass to discolour. These are usually circular, but they can coalesce into larger areas. These patches can appear over a few days, and may stay for several weeks.… Read More »

Question: Lawn looking like straw after cut

New grass turning straw-like

I received this question from a reader from surrey in August 2017 who is worried his newly turfed lawn looks like straw. Unfortunately I live in surrey but came across your site. Thank you for offering to reply to my email. I installed a lawn 3 months ago. I put down 20 tonnes of topsoil. It was growing… Read More »

The first case of red thread disease in 2013

Red Thread on a lawn close up

Red thread disease (Laetisaria fuciformis) is a fungal infection which can attack grass in warm, wet summers. In 2012, red thread rose to almost epidemic levels, infecting almost 70% of lawns in the South Manchester area. The recent wet weather has meant that the grass sward is damp for most of the day which are ideal conditions for… Read More »