Image of UK lawn in the summer, freshly mown and surrounded by flower beds

Red Thread Treatment

Our Red Thread Treatment is specially designed to aid the lawn in a quick recovery following a bout of Red Thread fungal disease. 

What is the Red Thread Treatment?

Our Red Thread Treatment is a fast-acting, all in one, foliar liquid spray applied in a similar way to our weed killer and is absorbed through the grass leaf. The professional equipment we use to apply the treatment allows for an even spread of the product across the lawn, to ensure all the Red Thread areas are treated. This treatment also strengthens the grass against general lawn diseases as well as Red Thread. Visually, you should be able to see the effects after 3 days of the application.  

The Red Thread Treatment can be added to any of these packages

Basic Package

£10.42/Month

Standard Package

£14.50/Month

Enhanced Package

£21.58/Month

Striped lawn with many patches of the fungal disease red thread
Lawn with red thread disease

What is Red Thread?

Red Thread is a fungal disease that typically occurs in damp and humid conditions. This disease can be identified in the lawn from the pink thread-like substance that grows on the grass blade (see image above). This is one of the most common lawn diseases. While a lawn will usually recover on its own from a bout of Red Thread, we can help speed along the process. 

Man with knapsack sprayer on back, spraying a lawn

How does the TopGrass Red Thread Treatment help?

A Red Thread Treatment will not cure the lawn of Red Thread but will help speed up the recovery and help return your lawn to its previous green, luscious appearance. The treatment tends to take effect within 3 days, sometimes even quicker, so it is a fast visual solution to an unsightly problem. Unfortunately, once a lawn gets Red Thread, the disease tends to remain and can come out in bouts every now and then, but rest assured we can apply this treatment each time to help speed up the recovery every time. 

The Red Thread Treatment Formulation comprises of: 

  • Diluted liquid Iron Fe to provide a quick green-up 
  • Micro-nutrients to help harden the grass plant against disease and promote strong, healthy growth in order to help recovery from current Red Thread bouts 


Image of Aerator

Other methods of combatting Red Thread

  • We also recommend regular aerations to help de-compact the lawn which should reduce the number of outbreaks your lawn has of the disease. This decompaction allows water, air, and nutrients to flow through the soil effectively. 
  • Regular scarification of the lawn is also advised. This is to improve airflow in the lawn and to reduce levels of moss/thatch debris. This will help reduce Red Thread infection levels in the lawn. 
Striped UK Lawn in the summer sun

Summary: 

When? A Red Thread Treatment can be applied at any time of the year, except for drought conditions 

What? A liquid application of Iron Fe and Micro-nutrients 

Why? To aid the lawn in a quick recovery following a bout of Red Thread fungal disease.


Lawn Care Services

Achieve a lush, green, and healthy lawn all year round with our expert lawn care services. Whether you need lawn aeration, scarification, weed control, or seasonal lawn treatments, we provide tailored solutions to enhance the health and appearance of your grass.

Fertiliser spreader on a lawn, in front of a blossoming tree during spring

Season Starter Treatment

The Season Starter Treatment is applied to give lawns a kick start following the hard winter months. It is uniquely designed for specific grass growing conditions from February to April.

Learn More
Image of fertiliser spreader on striped lawn

Early Season Treatment

The Early Season Treatment is an application of partially coated, controlled release fertiliser and targeted weed control to help keep your lawn thriving through spring and summer

Learn More
Image of well maintained, striped lawn

Mid Season Treatment

An application of fully coated fertiliser to prevent lawn scorch, combined with a selective weed control to help to keep your lawn healthy during those summer months

Learn More
Man with knapsack sprayer on back, spraying a lawn

Late Season Treatment

Strengthen your grass with an iron-based micronutrient spray, which also helps to contain moss in your lawn during the wetter, milder autumn months

Learn More
Image of striped lawn on a sunny, winters day

End of Season Treatment

Toughen up your lawn during the harsh, cold winter months with an iron-based micronutrient spray that will help to inhibit moss growth

Learn More
Aerator on UK lawn

Lawn Aeration

Aeration is a key factor in keeping lawns healthy and green, as, like us, your lawn and the soil beneath it needs to breathe.

Learn More
Image of scarifier on a lawn in the UK that has been half scarified

Lawn Improver

This renovation service is for lawns that are struggling with a moss and thatch build-up. A routine lawn scarification service that we recommend customers have every 1-3 years depending on the conditions of their lawn.

Learn More
image of handheld fertliser spreader on a lawn facing a van that is branded with TopGrass

Water Conserver

Increase your lawn's ability to absorb and retain moisture with our Water Conserver treatment

Learn More

Lawn Care Packages

No matter your lawn’s condition or your level of experience with lawn maintenance, we’ve got the perfect package to suit your needs. Our professional lawn care packages offer year-round treatments to keep your grass green, healthy, and weed-free. 

Image of striped lawn with surrounding flower borders

Basic Package

£10.42/Month
All year round treatments

Our Basic Package provides the essentials for those who are new to lawn care. This package includes our Annual Lawn Care Programme consisting of fertiliser applications, weed killer applications and moss controls that are seasonally tailored to your lawn's needs.

What's included

  • Spring Season Starter Lawn Care Treatment
  • Summer Early Season Lawn Care Treatment
  • Summer Mid-Season Lawn Care Treatment
  • Autumn Late Season Lawn Care Treatment
  • Winter End-of-Season Lawn Care Treatment
Most Popular
Image of striped lawn

Standard Package

£14.50/Month
Help your lawn breathe again

Get everything that's included in our Basic Package, but with an additional lawn aeration. This is a lawn care package that will help to ensure that your lawn is green and healthy throughout the year.

What's included

  • Spring Season Starter Lawn Care Treatment
  • Summer Early Season Lawn Care Treatment
  • Summer Mid-Season Lawn Care Treatment
  • Autumn Late Season Lawn Care Treatment
  • Winter End-of-Season Lawn Care Treatment

Plus

  • Lawn Aeration
Image of english lawn with trees and a flower border

Enhanced Package

£21.58/Month
Revive your lawn with renovation

Our Enhanced Packages are designed for lawns that are struggling with moss and thatch. This package can be tailored based on the level of scarification your lawn requires to remove moss and thatch and get it thriving again. This also includes all the treatments found in our Basic Package.

What's included

  • Spring Season Starter Lawn Care Treatment
  • Summer Early Season Lawn Care Treatment
  • Summer Mid-Season Lawn Care Treatment
  • Autumn Late Season Lawn Care Treatment
  • Winter End-of-Season Lawn Care Treatment

Plus

  • Lawn Maintainer Renovation Service
  • Lawn Improver Renovation Service
  • Total Reseed Renovation Service

Why TopGrass

Top Quality

TopGrass staff use professional lawn care products and equipment to obtain the best results.

Top Value

Our lawn care packages start from as little as £10.42 per month including labour, materials and VAT. It can be cheaper than DIY!

Top Expertise

Beautiful lush, green grass enhances the appearance of your property and can increase its value.

Top Appearance

Beautiful lush, green grass enhances the appearance of your property and can increase its value.

Top Value

Letting us do the work for you will save you days of your own precious time and allow you more time to enjoy your garden.

Top Flexibility

Free lawn treatment quotation with no obligation. We will tell you what your lawn needs to improve it. There is no hard sell, no contract to sign.

Nice Striped Lawn

What our customers say about us

Our lawn has looked great ever since TopGrass

Great value for money, our lawn has looked great ever since TopGrass started looking after us. Rob has been to us on the last two visits & done a great job.

David T
16th September 2025

I would highly recommend that you try Topgrass

I have used Topgrass for 4 years. They provide a very efficient and professional service. All the Technicians that have serviced my property have been polite, knowledgeable and totally professional. If you are looking for a company to service your lawn and borders, I would highly recommend that you try Topgrass.

Stuart W
4th February 2025

It is so nice to not have to worry about feeding and weeding the garden

I have been using TopGrass for many years following a recommendation from my parents. It is so nice to not have to worry about feeding and weeding the garden and I can honestly say I have always been very impressed by the complete lack of weeds I see in my lawn. Great communication in advance of their visits, 10/10.

Jonathan B
2nd July 2024

FAQ's

Red Thread is a common fungal lawn disease that thrives in damp, humid conditions. It appears as pink or red thread-like strands on the grass blades and can cause unsightly patches across your lawn. While it doesn’t usually kill the grass, it can significantly affect its appearance.

The treatment is designed to help your lawn recover quickly from a Red Thread outbreak. It doesn’t cure the disease itself but accelerates the lawn’s recovery by strengthening the grass and improving its colour and health. Most customers see visible improvement within just 3 days of application.

Good news! You can start improving your lawn at any time of the year. We offer different treatments suited to the season:

  • February-April (Season Starter Treatment): aims to wake up your lawn, deliver early nutrients and an early boost for your lawn before the growing season.
  • Spring–summer (Early & Mid-Season Treatments): maintains strong growth, manages weeds, supports colour during warm and dry periods.
  • Autumn-winter (Late & End-of-Season Treatments): targets moss, strengthens roots for winter, and greens up the lawn during slower growth phases.

Start whenever you’re ready, the sooner we assess your lawn, the sooner we can begin improvements.

Unfortunately, no. Red Thread is a recurring disease that can reappear under favourable conditions. However, the treatment can be reapplied as needed to support recovery each time an outbreak occurs.

Yes — we offer three main tiers: BasicStandard, and Enhanced.

  • Basic Package: Includes all year-round core treatments (Season Starter, Early, Mid, Late, End-of-Season). From ~£10.42/month.
  • Standard Package: Includes everything in the Basic Package plus a lawn aeration for improved soil and root health. From ~£14.50/month.
  • Enhanced Package: Full lawn scarification, aeration and reseeding tailored to your lawns needs. (including scarification, aeration and seeding). From ~£21.58/month.

If you prefer a custom plan, we can tailor one to match the exact condition of your lawn.

Yes. TopGrass recommends regular aeration to relieve soil compaction and improve water, air, and nutrient flow. Scarification is also advised to reduce thatch and moss, which can harbour fungal spores and restrict airflow—both of which contribute to Red Thread development.