Tackling Lawn Disease for a Greener, Healthier Lawn
Lawn diseases have a significant impact on your grass plants, affecting your turf’s general aesthetic and vitality.
Your lawn can be susceptible to many diseases throughout the year, some are a result of poor lawn maintenance, whereas others will appear regardless of your lawn care regime. Weather conditions can stress your lawn encouraging diseases such as red thread, leaf spot, Microdochium patch (fusarium,) snow mould and dollar spot. In any of these cases we’re prepared with a cultural programme with lawn disease control products to help the lawn and if necessary a lawn fungicide treatment which reduces the activity of the disease, allowing your lawn to recover.
Lawn disease comes in many forms, it’s generally caused by fungus which attacks the grass and deprives it of vital nutrients. Disease will weaken the grass plant, cause discolouration, and ultimately kill your lawn. That’s why lawn fungus control is essential to maintain a healthy lawn. Infections can occur at any time of the year but are most likely to appear during warm and wet periods.
Protect Your Lawn’s Health
Get expert advice and treatments that prevent and control disease, keeping your grass strong year-round.
How We Treat Lawn Disease
Lawn disease is usually the result of stress on your grass, triggered by humidity, compaction, thatch, nutrient deficiencies, or environmental conditions. While prevention is always best, when problems do arise, our expert Lawn Disease Management treatment helps restore your lawn’s health quickly and effectively.
Tailored Diagnosis and Solutions
Every lawn is different. That’s why we begin with a detailed assessment to correctly identify the disease or disorder, whether it’s Red Thread, Fusarium, Leaf Spot, Dollar Spot, or Snow Mould. From there, we prescribe the most appropriate treatment to stop its progression and support recovery.
Treatments
Fungicide Application
For active fungal diseases, we apply a professional-grade fungicide that targets the infection and reduces its activity. You can typically expect to see visible signs of recovery within 7–14 days. We may also recommend follow-up treatments depending on the severity.
Nutrient and Bio-Stimulant Support
Alongside fungicide, we use nutrient-rich liquid treatments such as NutraBooster to help strengthen the grass plant. These stimulate healthy regrowth, restore colour, and improve the lawn’s resilience against further stress or disease.
Post-Treatment Advice
We always advise avoiding mowing for 3 days after treatment, and recommend keeping pets off the lawn for at least 2 hours (or up to 2 weeks for grazing animals). You’ll receive clear aftercare instructions tailored to the treatment applied.
Ongoing Prevention
Maintaining a healthy, stress-free lawn with regular feeding, aeration, and proper mowing habits is the best way to prevent disease recurrence. Our treatment plans are designed to support this by keeping your lawn strong year-round, reducing the likelihood of issues developing in the first place.
Common UK Lawn Diseases
We’ve listed the most common lawn diseases found in the UK, making it easier for you to identify them and take the necessary steps for effective lawn disease control.
Red Thread
Recognised by a pink/reddish tint on the grass, very fine needles can be seen protruding from the grass blades. In severe cases you’ll see pink mycelium, almost like small flocks of cotton wool.
MicrodochiumPatch (Fusarium)
This is another common lawn disease, it appears in small, circular, yellow patches which can spread up to about 30cms in diameter. Once established, the patches turn a yellow/brown colour and in severe cases can kill the grass. When the disease becomes inactive, the area appears pale and straw-like.
*Figures shown are approximate and based on available data. For illustrative purposes only.
SnowMould
Very closely related to Microdochium Patch (Fusarium) is Snow Mould, another cool weather disease that thrives in lawns with poor air circulation. The fungus produces white, dish-like patches which, in severe cases, can turn pink.
Dollar Spot
Patches are usually very distinctive and often circular, and can combine to form large, affected areas. Within the patches, dead grass is bleached white or straw coloured and they may also be sunken.
Worried About Lawn Disease?
Book a professional lawn assessment today and let our experts take care of any issues, before they spread.
Real Lawns, Real Results
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Further Reading
Explore more guidance on common lawn problems and how professional treatments can help restore your lawn to full health.
Why Lawn Turns Yellow
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Green Thumb’s Lawn Pest Control service effectively protects your lawn from pests like grubs and ants. Expert treatments keep your turf healthy and pest-free, tailored to your lawn’s specific needs.
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Lawn Rust
Lawn rust is a fungal disease that turns grass orange or yellow, making lawns patchy. It thrives in warm, humid conditions and stressed grass. Prevent it with balanced feeding, proper mowing, morning watering, and aeration.
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