In this guide we’ll look at the best greenhouse fumigators for the UK market.
We’ve compared ease-of-use, design, effectiveness and cost
to give you our top recommendations.

What Are The Best Greenhouse Fumigators?

  • Features
  • Easy to use
  • Eliminates pests and fungal spores
  • Good value for money
  • Cost
  • Features
  • Garlic oil formulation
  • Non-toxic
  • No need to remove plants
  • Cost
  • Features
  • Easy to use
  • No need to remove plants
  • No nasty smell
  • Cost

More Detailed Greenhouse Fumigators Reviews

Sulphur Convenient Candles

This Sulphur Convenient Candle is the best greenhouse fumigator as it is very economical, effective and convenient to use.

This greenhouse fumigator provides a simple and effective way to eliminate pests and spores from your greenhouse to protect your plants. All you have to do is close all the windows and doors in the greenhouse and place the tin on a heatproof surface. Then simply open the tin, light the wick and leave it to burn. Do not remain in the greenhouse while the candle is burning. Once the greenhouse has been fumigated, ventilate it for 24 hours before spending any time in there or replacing plants.  The gas produced will fumigate an area of up to 14 cubic metres.

This fumigator produces plenty of sulphur smoke to eliminate pests and fungal spores that can infect and infest your plants. It should be used each autumn to fumigate your greenhouse to eradicate pests and fungi to protect the next season’s plants.

This is the best greenhouse fumigator as it is economical and easy to use.

Pest-Stop Biofume Natural Greenhouse Fumigator

The Pest-Stop Biofume Natural Greenhouse Fumigator is the best greenhouse fumigator if you want an effective yet non-toxic product.

This natural fumigator is based on garlic oil so is non-toxic to you and your plants. However, it is still effective at extinguishing and driving out common pests such as aphids. The fumigator is easy to use, you simply place it on a fireproof surface in the middle of the greenhouse and light the fuse, then leave it to get to work. It does smell very strongly of garlic so you will need to ventilate the greenhouse well after use!

This fumigator is a safe, non-toxic product to get rid of pests such as aphids.

Deadfast Greenhouse Smoke Fumigator

This Deadfast Greenhouse Smoke Fumigator provides effective elimination against flying and crawling insects.

This greenhouse smoke fumigator treats flying insects in a 120m³ area and crawling insects in a 7.5m³ area. You do not need to remove plants before using this fumigator. The fumigator is easy to use, simply place it on a heatproof surface, light and leave the greenhouse for 12 hours. On returning, ventilate the greenhouse thoroughly before resuming work in the area. The fumigator contains Permethrin and is harmful to aquatic life.

This greenhouse smoke fumigator is easy to use and kills insects effectively.

Greenhouse Fumigators Buyer’s Guide


Different fumigators work in different ways to eliminate pests and fungal spores. Sulphur candles have been used for years to get rid of pests and fungal spores to prevent damage to plants. These are very effective, but they are quite smelly and you do have to remove plants before using them. Natural products may suit you better as you do not need to remove plants and they are not toxic to you, your pets or aquatic life. Some fumigators use Permethrin which is effective and less smelly than sulphur. However, it still needs to be used with care as it can be toxic if swallowed or inhaled.


How do you use a greenhouse fumigator?

You should always carefully follow the instructions on your fumigator product for safe use. In general, though the following directions should be followed.

Depending on the type of fumigator you may need to remove all plants from the greenhouse. This will be the case if you are using a sulphur candle, however, for some products it will not be necessary.

Close the windows and doors of your greenhouse.

Place the fumigator candle on a fireproof surface, such as a brick, in the middle of the greenhouse or spaced out evenly if you are using more than one.

Light the candle then leave the greenhouse, closing the door behind you. Wait outside to check that the candle is lit, and smoke is being produced. Sometimes it can be fiddly to get the wicks of these candles alight so you might have to go back in and relight it.

Once the candle is smoking you can leave it to do the job. Do not go back in the greenhouse for 24 hours if you have used a sulphur candle. After that time go in and open the doors and windows and then leave the greenhouse to ventilate.


A greenhouse is by design a closed environment that offers protection to tender plants. However, your greenhouse can also make a cosy place for overwintering insects and fungal spores. A fumigator is a simple way to eliminate these pests and provide a hygienic environment for your plants to help keep them pest and disease-free.

For a thorough fumigation of your greenhouse, I would recommend using a Sulphur Convenient Candle as it is simple to use and effective against most insects and fungal spores.