Disease Management | How To Spot & Avoid Lawn Disease

Disease Management & Treatment

The best prevention against lawn disease is regular maintenance, but sometimes disease is hard to avoid so we’re here to help.

Lawn disease can be a sign of imbalance or stress, so Disease Management  and sometimes treatment is important. We will assess your lawn and identify the lawn disease in order to treat and restore your lawn to full health. The healthier the lawn the least likely a disease can strike.

Red Thread is one of the most common diseases for domestic lawns. It can present itself all year round, so it’s good to keep an eye out, but particularly from May onwards because it typically favours humid, warmer conditions.

Red Thread is a fungal infection that will first cause noticeable red strands on the tips of grass blades. Then, as the infection spreads these growths will meet with others, causing pink, reddish patches. When paler in colour these patches can be misdiagnosed as drought. Although it can spread quickly, it only affects the blades of grass rather than penetrating the soil, and therefore regular mowing may stop it from spreading and help to keep it at bay. Sometimes however, we will recommend a Fungicide Treatment if it does not dissipate. 

Fusarium or ‘Snow Mould’ is another of the domestic diseases that you may find between September and March although it can present throughout the year. This disease, unlike the Red Thread, can cause severe damage and kill the grass if it is allowed to spread, so it is best to know what to look out for.


Fusarium affects the soil and the grass, hibernating during the summer months and then striking in the autumn, preferring damp conditions. Look out for small orange or yellow patches, roughly the size of a tennis ball, which will grow in size if they are left untreated.

Long periods of snow cover, leaves left on the lawn, thatch and mould all provide ideal conditions for the success of this disease. In order to help prevent it we advise that you regularly remove all debris from your lawn and consider essential Annual Treatments such as Scarification and Aeration to assist nutrient and air penetration, to improve drainage, and remove thatch.

Other, less common diseases such as Rust; creates patches of orange/yellow on the blades of grass usually in late summer and is caused by a lack of hydration. Powdery Mildew is a turf disease caused by poor aeration, so, regular maintenance and a healthy lawn is the best prevention and treatment. Then you have other, more rare diseases such as Dollar Spot and Brown Patch.

How it works

In most cases lawn diseases are manageable and will dissipate as seasons and conditions change as they will no longer be able to sustain themselves or spread without specific conditions. 

Maintenance & mechanical treatments | Most treatments for diseases come in the form of regular maintenance and mechanical treatments such as mowing, whilst sometimes simply allowing the lawn to grow-out the disease naturally can be an option. 

Fungicide Treatment | However, in some cases where disease is severely damaging your lawn and the soil ecosystem and is not showing signs of weakening despite regular maintenance and mechanical treatments, we will be able to treat your lawn with a professional Fungicide Treatment. If your So Green Lawn Manager recommends a Fungicide Treatment, they will always discuss this method of treatment with you beforehand so you can both agree on your lawn care programme going forward.

Aftercare | Once a disease is eradicated we can help to restore nutrient balance and hydration back to your lawn and conquer the source of the problem that allowed the disease to take hold in the first place. Our aim is to always get your lawn back to the healthiest it can be in order to prevent any future problems.

What to expect

Disease Management is important because treatment of such lawn diseases can take time and don’t always appear instantly effective, but through specialised lawn treatments and care, our aim is to find the cause of the stress and restore the health of your lawn and not simply treat the symptoms caused by the disease, because a healthy lawn makes it much harder for diseases to take hold.

How to prepare

In the case of a suspected lawn disease, and for identification, please do not mow but just clear your lawn of debris so we can make a thorough assessment before treatment. Learn how to mow like a pro

You may even want to take any photos of suspected disease affected areas and send them to us for advice at info@sogreenlawncare.co.uk.


Nature will always try to run its course but there are ways to prevent these diseases in the first place. The number one preventative is to have a good and strong lawn; this is supported by an effective annual lawn care programme.

Usually the spores that arrive in your lawn are airborne but spores can be spread around on the bottom of a boot or the wheel of a lawn mower, so cleaning your equipment can help. We are careful that our machines are cleaned regularly so we don’t transport spores from garden to garden.

The first signs that you might have a fungal disease include brown, white and yellow patches of dead looking grass that slowly grow in diameter.

Treatment Overview

  • WHEN

– Available all year round

  • WHY

– Prevent disease spreading & future lawn diseases
– Eradicate disease when natural treatment isn’t working.  
– Treat early & repair existing damage 

  • WHAT

– Regular lawn maintenance
– Fungicide Treatment (if necessary)

Request your Free Lawn Analysis

Before treating your lawn we will assess your lawn using our 12 Point Lawn Analysis. We will discuss the results with you and create a tailored lawn care programme that suits your lawn so you can make the most of your garden and leave the hard work to us.

 Call Us: 08000 665465

If you think it’s time for professional lawn repair or a complete lawn renovation book a free lawn analysis and we will be happy to assess your lawn and discuss a bespoke lawn care plan with you.


Nature always finds a way and when it comes to insects in your garden not all of them are pests.


Spiking is a less intensive type of aeration, involving holes being made in the surface of the soil at a depth of at least 3 inches using a solid-tine aerator.


PATH & PATIO CLEANER It can be frustrating but you can expect to see weeds pop up on your beautiful lawn, but don’t let them take over your in driveway, gravel paths and paved areas too!

Successfully Sent.
We will be on contact to arrange a date to visit.

Book a Visit
Fill in the form below and one of our lawn care specialist will be on touch!

Your Name (required)

Your Phone Number (required)

Your Email

Your Address