Pest control and plant health products are essential for protecting your plants and maintaining a healthy indoor growing environment. Even the most well-managed grow rooms can experience issues such as pests, mould or plant stress, so having the right products in place helps prevent and treat problems quickly.

At Acorn Horticulture, we supply a wide range of pest control and plant health products in the UK, including insect control, plant treatments and preventative solutions. Whether you are growing with hydroponic grow kits, using coco, soil or rockwool, or running a full setup with grow lights and grow tents, these products help keep your plants healthy and problem-free.

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Guard’n’Aid PestOFF Plus Mini Fumer 7g Pack of 2

£11.00 incl. Vat

Guard'n'Aid PestOFF Plus Mini Fumer 7g Pack of 2 is a compact smoke generator designed to help control crawling and flying insects in enclosed growing spaces and other difficult-to-reach areas.

  • Mini fumer format for targeted treatment in smaller enclosed spaces
  • Permethrin based smoke generator
  • Suitable for use against crawling and flying insects
  • Useful for grow rooms, empty glasshouses and awkward areas
  • Smoke helps reach cracks, corners and hidden spaces
  • Supplied as a convenient pack of 2 mini 7g fumers

Guard’n’Aid PestOFF Plus Midi Fumer 15g

£11.00 incl. Vat

Guard'n'Aid PestOFF Plus Midi Fumer 15g is a permethrin based smoke generator designed to help treat flying and crawling insect problems in hard to reach areas such as grow rooms and empty glasshouses.

  • Permethrin based fumer for difficult to access spaces
  • Suitable for use against crawling and flying insects
  • Useful for grow rooms and empty glasshouses
  • Smoke action helps disperse treatment through enclosed areas
  • Handy midi 15g format for practical treatment applications
  • Part of the Guard'n'Aid PestOFF Plus fumer range

Guard’n’Aid PestOFF Plus Maxi Fumer 31g

£20.00 incl. Vat

Guard'n'Aid PestOFF Plus Maxi Fumer 31g is a permethrin-based smoke generator designed to help control crawling and flying insects in hard-to-reach spaces such as grow rooms and empty glasshouses.

  • Permethrin-based fumer for enclosed treatment areas
  • Suitable for use against crawling and flying insects
  • Useful for difficult-to-reach places where sprays may be less practical
  • Designed for grow rooms and empty glasshouses
  • Maxi 31g format for larger treatment needs than smaller fumer options
  • Ideal as part of a wider hygiene and pest management routine

CX Tanlin 20ml

£18.50 incl. Vat

CX Tanlin 20ml is a biological treatment designed to help manage fungus gnat problems in hydroponic systems, soil, compost and coco fibre throughout the full growing cycle.

  • Biological treatment for fungus gnat and sciarid fly issues
  • Suitable for preventative use or active infestations
  • Can be used during all stages of plant growth
  • No withholding period and can be used up to harvest
  • Non toxic and safe to humans, animals and the environment
  • Effective in hydroponics, soil, compost and coco fibre

CX PMT Mildew Treatment 100ml

£25.00 incl. Vat

CX Horticulture PMT is a practical mildew treatment designed to help prevent or control powdery mildew on plants. This non toxic formula can be used throughout the growing cycle, including close to harvest.

  • Helps prevent or control powdery mildew
  • Non toxic formula for routine plant care
  • Suitable for use right up to harvest
  • Easy choice for indoor grow rooms and tents
  • Useful as part of a wider disease control routine
  • Compact 100ml bottle size

Guard’n’Aid for Thrip 250ml

Original price was: £22.50.Current price is: £20.00. incl. Vat

Guard'n'Aid for Thrip 250ml is a concentrated insect control solution designed to help manage thrips across egg, larval and adult stages on edible and non-edible crops in protected and outdoor growing areas.

  • Developed for use against thrips
  • Targets egg, larval and adult stages
  • Suitable for protected crops and outdoor growing areas
  • Can be used on edible and non-edible crops
  • Supplied as a 250ml concentrate
  • Makes up to 22 x 750ml spray applications

Guard’n’Aid for Spidermite 250ml

Original price was: £39.00.Current price is: £20.00. incl. Vat

Guard'n'Aid for Spidermite 250ml is a pyrethrum based contact insecticide designed for use against spider mite and their eggs, using an oil based formulation with high canola oil content.

  • Pyrethrum based contact treatment for spider mite control
  • Suitable for targeting spider mite and their eggs
  • Oil based formulation with 83% canola oil
  • Works by targeting the respiratory organ and nervous system of insects
  • Practical option for controlled indoor and horticultural pest management routines
  • 250ml bottle size for convenient handling and application

CropGuard Anarak SM 250ml

£24.00 incl. Vat

CropGuard Anarak SM 250ml is a concentrated natural foliar spray designed to help tackle certain causes of leaf spotting while supporting plants as damaged foliage recovers.

  • Used as a foliar spray for leaf spot related plant issues
  • Helps plants recover from visible leaf spot damage
  • Fast acting and effective in practical plant care routines
  • Natural formulation designed not to damage, stall or suffocate plants
  • Concentrated liquid to be diluted before application
  • Suitable for growers looking to support healthier foliage

Superthrive Vitamin and Hormone Plant Additive

Price range: £15.00 through £249.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Superthrive is a well-known vitamin and hormone plant additive designed to support healthier growth, help plants recover from stress and provide a useful boost across a wide range of growing situations.

  • Concentrated liquid formula that goes a long way
  • Ideal as a plant pick me up during periods of stress or transplanting
  • Suitable for house plants, vegetables, trees and flowers
  • Can be used to support both vegetative growth and flowering programmes
  • Available in 120ml, 480ml, 960ml, 3.8l and 9.5l sizes
  • Popular plant health additive for routine care and recovery support

Sticky Fly Traps Pack of 5

£5.00 incl. Vat

Sticky Fly Traps Pack of 5 are a simple and practical way to help monitor and catch flying insect pests around houseplants, grow areas and propagation spaces.

  • Pack of 5 sticky fly traps
  • Helps catch and monitor flying pests in the grow area
  • Useful for routine pest checks around plants and pots
  • Suitable for indoor horticulture, propagation and houseplants
  • Easy to position where pest activity is most likely
  • Ideal as part of a wider pest control routine

SB Plant Invigorator 500ml Concentrate UK | Pest Control & Foliar Feed

£20.00 incl. Vat

SB Plant Invigorator 500ml Concentrate is a highly effective pest control solution designed for indoor plants, grow tents, and hydroponic systems. This concentrated 3-in-1 formula works as a pesticide, mildewcide, and foliar feed, helping eliminate pests while improving plant health and growth.

  • Makes up to 50 litres of spray from one bottle
  • Kills aphids, spider mites, whitefly, and more
  • Non-toxic, biodegradable, and safe for edible crops
  • No pest resistance due to physical mode of action
  • Improves plant health, vigour, and leaf colour

SB Plant Invigorator 500ml Trigger Spray UK | Ready to Use Pest Control

£14.00 incl. Vat

SB Plant Invigorator 500ml Trigger Spray is a ready-to-use pest control solution designed for indoor plants, grow tents, and hydroponic systems. This powerful 3-in-1 formula works as a pesticide, mildewcide, and foliar feed, helping eliminate pests while improving plant health.

  • Ready-to-use spray – no mixing required
  • Kills aphids, spider mites, whitefly, and more
  • Safe for edible plants and indoor growing
  • Non-toxic and environmentally friendly formula
  • Improves plant health and leaf quality

What Are Pest Control and Plant Health Products?

Pest control and plant health products are used to protect plants from insects, disease and environmental stress. These products help prevent infestations, treat existing problems and support overall plant health throughout the growing cycle.

Common issues in indoor growing include pests such as aphids, spider mites and whiteflies, as well as mould and mildew. Using the right products helps keep these problems under control and protects plant growth.

Common Plant Pests and Problems

Indoor growers may encounter a range of pests and plant health issues, including:

  • Spider mites
  • Aphids
  • Whiteflies
  • Mealybugs
  • Mildew and fungal issues

Many plant health products are designed to target these issues while also supporting stronger, healthier plants.

Types of Pest Control and Plant Health Products

There are several types of products available to help manage plant health:

  • Insect control treatments – help eliminate pests and infestations
  • Preventative sprays – reduce the risk of pest problems developing
  • Plant health stimulants – support stronger growth and resilience
  • Mildew and fungus treatments – help control mould and disease
  • Fumers and room treatments – treat larger grow spaces and hard-to-reach areas

Many modern plant health products are designed to be safe, effective and suitable for use throughout the growing cycle.

Why Plant Health Matters

Healthy plants are more resistant to pests and disease, and maintaining good plant health is key to achieving strong growth and high yields.

  • Reduces the risk of infestations
  • Supports stronger root and leaf development
  • Improves resistance to environmental stress
  • Helps maximise plant performance and yields

Regular monitoring and preventative care are essential parts of any successful indoor growing setup.

Pest Control and Indoor Growing Setups

Pest control products work best as part of a complete indoor growing system. For best results, combine plant health solutions with:

This combination helps reduce the likelihood of pest issues and keeps your growing environment stable and controlled.

Preventing Pest Problems

Prevention is one of the most effective ways to manage pests in indoor growing. Good practices include:

  • Maintaining clean grow spaces
  • Monitoring plants regularly for early signs of pests
  • Controlling temperature and humidity
  • Using preventative plant health products

By taking a proactive approach, you can avoid many common problems before they affect your plants.

Helpful Guides for Plant Health

If you want to learn more about pest control and maintaining plant health, explore our guides:

These guides will help you identify issues early and choose the right solutions for your plants.

Shop Pest Control and Plant Health Products in the UK

At Acorn Horticulture, we stock a wide range of pest control and plant health products for indoor growers across the UK. From preventative treatments to solutions for active infestations, our range is designed to keep your plants healthy and protected.

Browse our full selection above to find the right pest control and plant health products for your setup.

FAQs

What are the most common pests in indoor growing?

Common pests include spider mites, aphids, whiteflies and mealybugs, which can damage plants and reduce yields.

How do I prevent pests in my grow room?

Keep your grow space clean, monitor plants regularly and use preventative treatments to reduce the risk of infestations.

Can I treat pests during all stages of growth?

Many plant health products can be used throughout the growing cycle, but always follow product guidelines.

Do plant health products improve growth?

Yes, many products help strengthen plants, improve resistance to stress and support overall plant health.