Damage rating


Type of disease


Dollar spot - Sclerotinia homeocarpa

How to recognise it

Yellow-brown patches, around 5-8cm in diameter, appear in mild, wet weather in early autumn. You may also find that the individual grass leaves have a thin dark band separating the yellowing part from the green.

Why it’s a problem

It is unsightly and can be quite widespread when a lawn is infected.

Where you are likely to find it

In lawns, particularly those containing red fescue grass.

How to prevent it

General good lawn maintenance, including aeration, should prevent an infection. When feeding the garden in autumn ensure that an appropriate autumn/winter fertiliser is used – spring fertilisers generally contain too much nitrogen for autumn/winter feeding, which encourages new growth which becomes susceptible to disease in the colder months.

How to get rid of it

Improve drainage through aerating the lawn (eg by spiking with a fork) and ensure that fertilisers with a high nitrogen content are not applied between September and March.

Is it good for anything?!


Other useful information

It is called dollar spot due to the shape and size of the discoloured patches – ie they are similar to a dollar coin.