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

Grub Control Treatment

Protect your lawn from the devastating effects of chafer grubs and leatherjackets with the TopGrass Grub Control Treatment. Our expert lawn pest control service is specially designed to target and eliminate leatherjackets and chafer grubs—two of the most common and destructive lawn pests in the UK.

What is the TopGrass Grub Control Treatment?

Our Grub Control Treatment consists of a single liquid spray application. This is time sensitive to the particular species of pest that you have present in your lawn. Our Grub Control is based on a new active ingredient which was approved in 2023 by the UK Government.

Once applied, the treatment will be active against grubs in the upper soil profile of your lawn for approximately two months.

The treatment is designed to target leatherjackets or chafer grubs when they are in their early stages of development. It is important that the treatment is applied during the egg laying period of the pest being treated, so that the product is in the soil during this time in their life cycle. This is to prevent the grubs from maturing and causing extensive damage to your lawn. 

Our Grub Control Treatment can only be applied once per year, so it is essential that our Grub Control treatment is applied at the correct time.

The TopGrass Grub Control Treatment can be added to any of these packages

Basic Package

£10.42/Month

Standard Package

£14.50/Month

Enhanced Package

£21.58/Month

Leatherjackets on a hand
Image of chafer grubs in soil

How does the Grub Control work?

The Grub Control Treatment works through the grubs ingesting the treatment while they feed on the organic matter in the soil. The treatment then takes effect by binding to the muscle cells of the grubs to paralyse them and ultimately control the pest infestation in your lawn.

Control of chafer grubs may require successive years of annual treatment to obtain effective long-term control of pest populations as they often have life cycles which last longer than a year.

Image of a sprinkler on a lawn

What do I need to do?

The lawn will need to be mown before the treatment to get the best results. Once the TopGrass Grub Control Treatment has been applied to your lawn, it will either need to be watered in (10 mins per area using a sprinkler) or there needs to be significant rainfall of 3-5mm on the day of application. This is to move the treatment into the soil and to encourage the leatherjackets or chafer grubs to the surface of the soil where the treatment will be most active. Once the treatment is applied, the lawn should not be mowed for at least three days. The first two cuts of the lawn after the application should be mulch cuts to ensure the effectiveness of the treatment.

Image of scarifier on a lawn that has been heavily scarified

Preventative Measures

Thatch: A dense thatch layer provides a haven for chafer grubs and leatherjackets that they can thrive in. It is important that a lawn is scarified to reduce thatch from the lawn, that will in turn help to prevent an environment conducive for grubs. TopGrass Grub Control Treatment will not be as effective if applied to a lawn that is dense with thatch. Please click here if you wish to learn more about our renovation packages.

Healthy Lawn: A regular TopGrass treatment programme will help to strengthen your lawn to be able to better deal with a grub infestation.

Image of well maintained, striped lawn

Why choose our Grub Control Treatment?

Safe for children and pets: Our Grub Control treatment specifically targets chafer grubs/leatherjackets in the lawn and is safe for both pets and humans. The active ingredient in our TopGrass Grub Control Treatment does not affect mammals. We would still recommend once the treatment is applied to stay off the lawn for the day to ensure the best results. 

Prevent damage to your lawn: If chafer grubs/leatherjackets in your lawn are left untreated, they will continue to damage your lawn and can lead to costly repairs. Through application of our Grub Control Treatment, this should help to reduce the damage inflicted on your lawn and ultimately help on the path to your lawn's recovery. 

Stop secondary predators: The chafer grubs/leatherjackets in your lawn provide a tasty food source for secondary predators such as foxes, birds or badgers. By eliminating these pests, this will help to prevent damage to your lawn from these predators digging to get to the grubs.

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.

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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

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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

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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

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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

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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.

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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.

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Image of scarifier on a lawn that has been heavily scarified

Total Reseed

This complete moss and thatch removal renovation service is our affordable alternative to re-turfing. It is ideal for lawns that are battling thick thatch and heavy moss growth.

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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

Thank you for such personal service with care and integrity

Ross came to our house we had a good chat about everything and the processes we are following to get a lawn for the summer. He then put the grub control down front and back and we agreed we will follow up with him for feeding and future treatments! Once we get a lawn again. Thank you for such personal service with care and integrity.

Michelle S
31st March 2025

We would thoroughly recommend Topgrass for noticeable and pleasing improvements to our lawn.

Helpful and knowledgeable service provided by Joe this week at our property. He helped us identify the larvae in our lawn that were causing bare patches and he also suggested some mowing techniques for us to continue to improve the health of our lawn. This is the second time Joe has been to our property and we very much enjoy the reliable and efficient service he provides. We would thoroughly recommend him and Topgrass for noticeable and pleasing improvements to our lawn.

Kate S
25th March 2025

I switched to using TopGrass from another lawn company a couple years ago and have been very pleased with the service provided

I switched to using TopGrass from another lawn company a couple years ago and have been very pleased with the service provided. Chris, who carries out most of the treatments on my lawns, communicates well about what is being done and provides good advice for ongoing maintenance. The office staff have been very helpful and efficient.

Peter A
19th March 2025

FAQ's

Grubs ingest the treatment while feeding on organic matter. It binds to their muscle cells, paralysing and ultimately eliminating them. This helps prevent lawn damage caused by the grubs themselves as well as damage caused by birds, foxes, and badgers who tear up lawns in the process of trying to eat grubs.

Timing is critical. The treatment must be applied during the egg-laying period of the target pest so it’s active in the soil when grubs begin to develop. This ensures maximum effectiveness.

Signs include thinning grass, brown patches, and increased activity from predators digging into your lawn. If you suspect grub damage in your lawn, then click here to book yourself a free of charge assessment.

It can only be applied once per year. For long-term control—especially of chafer grubs, which have multi-year life cycles—annual treatments will be needed.

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. The active ingredient targets only the pests and does not affect mammals. However, it’s recommended to stay off the lawn for the rest of the day after application to ensure the best results.