The Ultimate Guide: Houseplant Pests

Indoor Plant Pests

Houseplants bring beauty and nature into our homes, however, maintaining plants comes with its challenges, especially when it comes to dealing with houseplant pests. These uninvited guests can wreak havoc on your beloved plants, causing damage to rare or expensive specimens and seriously stressing you out.

Anyone who has had a full scale home invasion of spider mites or mealy bugs will shudder at the thought of a second wave. Preventative pest treatment can become almost as important as using pesticides. Pests can get into the floor boards and walls, and may never leave your home once they've arrived. Yes, you read that right — they may never leave, and eggs may lay dormant in your home.

Understanding, treating and preventing houseplant pests is crucial for keeping your plants healthy. Dive into the world of plant pests and learn how to safeguard your green friends with effective identification, natural treatments, home remedies, chemical strategies and preventative solutions.

Red spider miteRed spider mite

Red Spider Mite

First Signs Of Pest Issues In Houseplants

Identifying the early signs of pests in houseplants is crucial for preventing infestations from spreading and causing significant damage. Here are some common first signs to look out for:

  1. Discoloured Leaves: Leaves that change colour, often turning yellow or developing spots, can indicate a pest problem.

  2. Sticky Residue: A sticky substance called honeydew, excreted by pests like aphids and mealy bugs, can be found on leaves and surrounding surfaces.

  3. Cotton Residue: Mealy bugs typically leave a cottony, hairy, stark white layer of fluff where they lay eggs, this is regularly spotted before the adult mealy bugs.

  4. Tiny Holes or Chewed Edges: Small holes or chewed edges on leaves are typically signs of pests like caterpillars or beetles.

  5. Fine Webbing: The presence of fine webbing on plant stems and leaves is a common sign of spider mites.

  6. Yellow or Wilting Leaves: Pests can cause leaves to yellow and wilt, indicating stress and potential infestation.

  7. Stunted Growth: If your plant's growth seems to be stunted or distorted, it could be due to pest activity.

  8. Black or White Spots: Black or white spots on leaves can be a sign of fungal infections, often associated with pest damage.

Mealy bug eggs and a visible nymph on an Aglaonema Maria plant leafMealy bug eggs and a visible nymph on an Aglaonema Maria plant leaf

Visible Mealy Bug on an Aglaonema Maria leaf, with eggs and cottony residue

Holes in houseplant leaf
Holes in houseplant leaf
Yellow leaf
Yellow leaf
Spider mite webs visible in the base of a plant potSpider mite webs visible in the base of a plant pot

Visible fine webs from a Spider Mite infestation at the bottom of the plant pot

Yellowing leaf

Holes in leaves

Diagnosing Houseplant Pest Infestations

Diagnosing houseplant pest issues involves careful observation and a bit of detective work. Early detection is crucial to prevent infestations from damaging your plants. Here are some steps to help you diagnose pest problems in your indoor plants:

  1. Regular Inspections: Make it a habit to inspect your houseplants regularly. Check both the tops and undersides of leaves, stems, and soil. Pay special attention to areas where new growth is emerging, as pests often target tender new shoots.

  2. Look for Symptoms: Observe your plant for any unusual signs. Common symptoms of pest infestations include yellowing leaves, wilting, stunted growth, spots, holes, or a sticky residue on leaves. Each symptom can be a clue pointing to a specific type of pest.

  3. Identify the Culprits: Once you notice symptoms, try to identify the pests. Use a magnifying glass if needed to look for tiny insects, webbing, or other signs of pest activity. Common houseplant pests include aphids, spider mites, mealy bugs, thrips, and scale insects. Check our species identification section below for more information.

  4. Check the Soil: Some pests, like fungus gnats, thrive in the soil. Look for larvae or adult insects in the soil, especially if you notice your plant's growth is affected without visible pests on the leaves.

  5. Consider Environmental Factors: Pests often thrive in specific conditions. Assess your plant's environment, including light, humidity, and airflow, as these factors can influence pest activity and help diagnose the issue.

Adult and nymph Mealy Bugs on plant stemAdult and nymph Mealy Bugs on plant stem
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Yellow Aphids on a leafYellow Aphids on a leaf

Yellow Aphid infestation

Green AphidsGreen Aphids

Green Aphid close up

Mealy Bug infestation

Houseplant Pest Identification

Identifying houseplant pests accurately is the first step in managing and treating infestations. By recognising the specific pests affecting your indoor plants, you can implement targeted treatments to keep your greenery healthy. In this section, we will outline the common houseplant pests and how to identify them. Accompanying photos will provide visual aids to help you accurately diagnose pest issues.

Aphids
  • Appearance: Small, pear-shaped insects that can be green, black, brown, or white. They often cluster on new growth, stems, and undersides of leaves. Very thick bodes, usually seen in alarmingly large numbers if the infestation has taken hold.

  • Signs: Look for distorted growth, yellowing leaves, and a sticky residue called honeydew on the plant and surrounding surfaces.

Spider Mites
  • Appearance: Tiny, spider-like creatures, typically white, barely visible to the naked eye. They spin fine webbing on the plant. One of the most discrete pests, only being spotted when the infestation is so severe that there's webs all over the plants, only seen with a magnifying glass.

  • Signs: Yellow stippling on leaves, fine webbing on stems and leaves, and leaf drop.

Red Spider Mites
  • Appearance: A specific type of spider mite that is very small and often red, making them difficult to see without a magnifying glass. Very vibrant in could, once spotted, they can be easily seen all over your plants.

  • Signs: Look for fine webbing, particularly on the undersides of leaves, and tiny red or brown moving specks. Leaves may become speckled, yellow, and drop prematurely.

Mealy Bugs
  • Appearance: Small, white, cottony masses found on stems, leaf axils, and undersides of leaves. They look like little hairy lice, typically hairy, ranging from a pin prick to a small grain of rice. They have very visible antenna.

  • Signs: Yellowing leaves, stunted growth, and honeydew on the plant, which can lead to sooty mould.

Fungus Gnats
  • Appearance: Small, dark flies resembling mosquitoes. The larvae are white or transparent and live in the soil. Can often be found flying around your face or your drinks. Lovely little creatures… not.

  • Signs: Adult gnats flying around the plant, larvae in the top layer of the soil, and potentially yellowing leaves due to root damage.

Scale Insects
  • Appearance: Small, oval, nondescript bumps on stems and leaves. Scale insects are usually oval or round and can vary in size from 1 to 3 mm in diameter. They have a hard, protective covering, often described as looking like small bumps. The hard shell can be smooth, waxy, or cottony, depending on the species. They range in colour from white and yellow to brown and black. Some species, like soft scales, may appear translucent or waxy. They can be hard or soft-bodied, depending on the species.

  • Signs: Yellowing leaves, sticky honeydew, and sooty mould on the plant.

Thrips
  • Appearance: Tiny, slender insects that can be yellow, brown, or black. They are typically found on leaves, stems, and flowers, and can be difficult to see due to their small size and swift movements.

  • Signs: Silvery streaks or patches on leaves, curling or distorted leaves, and black specks of frass (insect excrement) on the plant. Thrips can cause significant damage by piercing plant cells and sucking out their contents, leading to reduced plant vigor and growth.

Yellow AphidsYellow Aphids
Mealy BugsMealy Bugs
Green aphidGreen aphid
Brown aphidsBrown aphids
Red spider miteRed spider mite
Spider miteSpider mite

Mealy Bugs

Yellow Aphids

Green Aphids

Brown Aphids

Red Spider Mite

Spider Mite

Houseplant Pest Life Cycles

Identifying houseplant pests accurately is the first step in managing and treating infestations. By recognising the specific pests affecting your indoor plants, you can implement targeted treatments to keep your greenery healthy. In this section, we will outline the common houseplant pests and how to identify them. Accompanying photos will provide visual aids to help you accurately diagnose pest issues.

Aphid Life Cycle
  • Egg Stage: Aphid eggs can overwinter on host plants and hatch in spring when conditions become favourable.

  • Nymph Stage: Nymphs hatch from eggs and mature within a week, depending on environmental conditions.

  • Adult Stage: Adults live for 20 to 40 days, continually reproducing and adding to the population.

Spider Mite Life Cycle
  • Egg Stage: Spider mite eggs are laid on the undersides of leaves and hatch within 3–5 days under favourable conditions.

  • Nymph Stage: Nymphs pass through two nymphal stages (protonymph and deutonymph) within 4–6 days, roughly.

  • Adult Stage: Adults live for 2 to 4 weeks, continually reproducing, leading to rapid population growth, especially in warm, dry conditions.

Red Spider Mite Life Cycle
  • Egg Stage: Red spider mite eggs are usually laid on the underside of a leaf and hatch within 3 to 5 days under the right conditions.

  • Nymph Stage: These mites pass through two nymphal stages (protonymph and deutonymph) over 4 to 6 days, roughly.

  • Adult Stage: Adult red spider mites live for 2 to 4 weeks, continuously laying eggs. This leads to rapid reproduction, especially in warm conditions.

Mealy Bug Life Cycle
  • Egg Stage: Mealy bug eggs are laid in cottony masses on plants and hatch within 6 to 10 days under favourable conditions.

  • Nymph Stage: Nymphs begin feeding on plant sap. They go through moulting stages over a period of 6 to 8 weeks, roughly.

  • Adult Stage: Adult mealy bugs live for many weeks, during which they feed on plant sap and lay more eggs, leading to ongoing infestations.

Fungus Gnat Life Cycle
  • Egg Stage: Female fungus gnats lay their eggs in moist soil, where they hatch within 4 to 6 days under favourable conditions.

  • Larval Stage: The larvae, which are white or transparent with black heads, feed on organic matter and roots for about 12–14 days before pupating.

  • Pupal Stage: The pupal stage lasts for about 5 to 6 days, during which the larvae transform into adult gnats.

  • Adult Stage: Adult fungus gnats live for 7 to 10 days. They are small, dark flies that resemble mosquitoes who lay eggs in moist soil.

Scale Insect Life Cycle
  • Egg Stage: Scale insects lay their eggs under their protective shell. The eggs hatch within 1 to 3 weeks, depending on environment.

  • Nymph Stage: Nymphs move around to feed, moulting several times over the course of 4 to 6 weeks, gradually developing their hard shell.

  • Adult Stage: Adult scale insects remain mostly immobile, and can live from numerous weeks to months, continuously reproducing more eggs.

Thrip Life Cycle
  • Egg Stage: Thrips lay their eggs inside plant tissues. The eggs are small and difficult to see. Depending on environment, eggs hatch within 2 to 14 days.

  • Larval Stage: Nymphs feed on plant sap. Over 1 to 3 weeks, they cause visible damage to plants, such as silvery streaks and curling leaves.

  • Pupal Stage: The pupal stage occurs in the soil. Larvae drop to the ground and pupate for numerous days to a week, depending on temperature.

  • Adult Stage: Adults emerge from the pupae and continue feeding on plant sap. They can live for months. Adults lay more eggs to continue the cycle.

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Garden Pests That Infest Indoor Plants

Garden pests often find their way into homes and onto houseplants, bringing their destructive habits indoors. In the UK, common pests like aphids, spider mites, and scale insects are frequently the culprits, while US households may also deal with similar issues.

Pathways of Infestation
  1. Outdoor to Indoor Transition: Many pests, like aphids, fungus gnats, scale, and spider mites, can migrate from gardens to indoor spaces when houseplants are brought inside, particularly during colder months. This transition can carry eggs, larvae, or adult pests, starting an indoor infestation. In the warmer months, shield bugs and ladybirds try to come indoors and will eat plants. Lacewings are harmless and actually help to control pest infestations.

  2. Contaminated Soil: Potting mixes or garden soil may already contain pest eggs or larvae. When used for indoor plants, these pests emerge and thrive in the controlled indoor environment. Sterilize your soil to avoid contamination.

  3. New Plant Introductions: New plants can introduce pests, even reputable garden centres have pest issues. Plants can pick up unwanted guests during transit.

  4. Open Windows and Doors: Pests like fungus gnats can easily enter through open windows and doors, attracted by the indoor environment.

  5. Wind: Spider mites and mealy bugs are carried in through gusts of air which propel them through doorways or windows.

Ladybird
Ladybird
Harmless Lacewing Insect
Harmless Lacewing Insect
Shield Bugs - Warning, they eat houseplants!
Shield Bugs - Warning, they eat houseplants!

Ladybird

Green Lacewing

Shield Bug

Houseplant Pests Lay Eggs In Floors & Walls

Houseplant pest eggs can survive in floorboards or walls for varying lengths of time, depending on the type of pest and environmental conditions. Here are some general guidelines along with how to spot and treat them:

Dormant Spider Mite Eggs
  • Survival Time: Spider mite eggs can survive for up to a few weeks in hidden areas. These can remain dormant during unfavourable conditions and hatch when conditions improve, usually within a few weeks to months.

  • Spotting Them: Look for fine webbing on the undersides of leaves, tiny white or red specks moving on the plant, and yellow stippling on the leaves.

  • Treatment: Isolate the affected plant and wash it with a strong stream of water. Apply a miticide or insecticidal soap and increase humidity around the plant to deter spider mites.

Dormant Fungus Gnat Eggs
  • Survival Time: Fungus gnat eggs, often laid in soil, can hatch within 4–6 days but can survive longer in moist environments. Typically, they do not remain dormant for long and hatch within a few days under suitable conditions.

  • Spotting Them: Look for adult gnats flying around the plant and larvae in the top layer of the soil. The soil may also appear overly wet.

  • Treatment: Allow the soil to dry out between watering to reduce moisture. Use sticky traps to catch adults and apply a biological control agent like Bacillus thuringiensis (Bt) to target larvae. Check our guide on how to kill fungus gnats.

Dormant Mealy Bug Eggs
  • Survival Time: Mealy bug eggs can remain viable for several weeks in protected areas before hatching when conditions become more favourable for them.

  • Spotting Them: Look for cottony white masses on the plant, particularly in leaf axils and stems. Leaves may appear yellow and wilted.

  • Treatment: Remove mealy bugs by hand or with a cotton swab dipped in rubbing alcohol. Apply insecticidal soap or neem oil and keep the plant isolated until the infestation is under control. Check our guide on how to kill mealy bugs.

Dormant Aphid Eggs
  • Survival Time: Aphid eggs can remain dormant for several weeks to months in cracks and crevices. Aphid eggs can go dormant during unfavourable conditions and survive for extended periods, remaining viable to hatch for several months. In colder climates, Aphid eggs enter a state of diapause, which is a period of suspended development. During this time, the eggs can withstand harsh conditions and hatch when the environment becomes favourable again.

  • Spotting Them: Look for tiny black or brown eggs near the base of the plant or in the soil. You may also notice curled or yellowing leaves and a sticky residue.

  • Treatment: Use horticultural soap or neem oil to treat the plant. Clean the area thoroughly and consider using a vacuum cleaner to remove eggs from floorboards and walls. Check our guide on how to kill aphids.

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Natural Houseplant Pesticide & Home Remedies

Managing garden pests doesn't always require harsh chemicals. Natural pesticides and home remedies can be just as effective while being safer for the environment, beneficial insects, and human health. Never re-use old chemical spray bottles, as it's impossible to remove all traces. Use a fine pressurised spray for maximum effects. Here are some popular natural options:

  1. Neem Oil: Derived from the neem tree, neem oil is an effective natural pesticide. It works by disrupting the life cycle of pests, deterring them from feeding and reproducing. Neem oil is effective against a variety of pests, including aphids and spider mites. Mix 1 teaspoon of neem oil with 1 litre of water and 1–2 tablespoons of soap, and spray it on the affected plants.

  2. Insecticidal Soap: Horticultural soaps are made from potassium salts of fatty acids. They work by breaking down the outer coating of soft-bodied insects like aphids and spider mites. Mix 1–2 tablespoons of mild liquid soap (not detergent) with 1 litre of water and spray onto pests.

  3. Diatomaceous Earth: This is a natural powder made from fossilized diatoms. It kills insects by dehydrating them. Sprinkle it around the base of plants or on infested areas to control pests. Be sure to use food-grade diatomaceous earth for garden use.

  4. Garlic and Onion Spray: Garlic and onion have natural pest-repelling properties. To make a homemade spray, blend 1 garlic head and 1 onion, mix with water, and let it steep. Strain the mixture and add 1–2 tablespoons of horticultural soap before spraying it on plants. This concoction can deter a variety of pests, including aphids.

  5. Alcohol Spray: Isopropyl alcohol can be used to control soft-bodied pests like mealy bugs and aphids. Mix one part alcohol with water and add 1–2 tablespoons of soap, then spray it on the affected areas. Test on a small section of the plant first to ensure it doesn't cause damage.

  6. Hot Pepper Spray: Hot pepper spray is an excellent deterrent for pests. Mix 2 tablespoons of hot pepper flakes and/or powdered cayenne pepper with 1 litre of water and 1–2 tablespoons of soap. Allow the mixture to steep overnight, then strain and spray on plants to repel insects.

  7. Essential Oils: Eucalyptus, lavender, and peppermint have insect-repelling properties. Mix a few drops of oil with 1 litre of water and 1–2 tablespoons of soap to create a spray that can deter pests like aphids. For serious infestations, use more oil, but always test first.

  8. Baking Soda Spray: Baking soda can help control fungal diseases and pests like aphids. Mix one teaspoon of baking soda with one litre of water and 1–2 tablespoons of liquid soap. Spray the mixture on plants to help prevent and control infestations.

  9. Cinnamon: It has antifungal properties and can repel ants and other small pests. Sprinkle ground cinnamon around the base of plants, or mix 2 teaspoons of cinnamon with 1 litre of water and 1–2 tablespoons of soap to make a liquid solution.

Cinnamon
Cinnamon
Chilli
Chilli
Garlic and onion
Garlic and onion
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Treating Houseplant Pests With Predatory Mites, Nematodes, & Beneficial Insects

Sometimes, natural is best. Although often expensive, beneficial insects can be a great way to prevent or control a pest infestation. When dealing with severe pests on your houseplants, use beneficial insects in combination with other treatment methods. Never use chemical or systemic pesticides at the same time as beneficial insects, as this could wipe them out. Let's explore which beneficial insects kill which pests:

10 Predatory Mites That Kill Pests From Houseplants

There are several species available to target a range of houseplant pests, some even target fungus gnats. Some of the most widely used predatory mites are:

  1. Phytoseiulus persimilis: This predatory mite is the perfect beneficial insect to control two-spotted spider mites (Tetranychus urticae). It is effective against all stages of the life cycle.

  2. Cryptolaemus montrouzieri: Predatory mite for mealy bugs, effective against all stages of the life cycle.

  3. Amblyseius andersoni: The perfect predatory mite for thrips and spider mites. Great in colder conditions.

  4. Amblyseius swirskii: This predatory mite for thrips is effective at controlling both adult and larvae.

  5. Amblyseius californicus: Survives up to 10 days without feeding, great predatory mite for spider mites.

  6. Amblyseius Cucumeris: Another great predatory mite for thrip control.

  7. Galendromus occidentalis: Western predatory mites are good for thrips and spider mites, but hard to buy.

  8. Hypoaspis Miles: One of the few predatory mites for fungus gnats, offering effective biological control.

  9. Metaseiulus occidentalis: A great predatory mite for spider mites and thrips, but hard to buy.

  10. Phytoseiulus longpipes: This is a predatory mite for spider mites and thrips, but it is hard to purchase.

Nematodes That Kill Houseplant Pests

There are several types of nematodes for houseplant pests, including the elusive fungus gnat. Pesky blighters. Here's the most common nematodes for houseplants:

  1. Steinernema feltiae: Perfect nematodes for fungus gnats, also kills thrips, and other soil-dwelling pests.

  2. Steinernema carpocapsae: Perfect nematodes for fungus gnats, often mixed with feltiae.

Parasitic Insects That Kill Indoor Plant Pests

Unconventional but creative, if you don't mind insects in your home, this is a great natural way to control houseplant pests. When finished, simply open windows to release them into the wild.

  1. Parasitic Midges — Aphidoletes Aphidimyza: The Gall midge is a natural predator of aphids.

  2. Predatory Beetles — Atheta coriaria: Predators of fungus gnats, but they can't survive below 25 °C (77 °F)

  3. Parasitic Wasps — Anagyrus vladimiri: Predator of citripar mealy bugs and vine mealy bugs.

  4. Parasitic Wasps — Aphidius colemani: Effective predators of aphids in houseplants.

  5. Predatory Ladybugs: These are the perfect beneficial insect to kill aphids, spider mites and scale insects.

  6. Predatory Green Lacewings: Killing aphids, mealy bugs, scale, and thrips. They fly out windows when finished.

Ladybird hunting aphids
Ladybird hunting aphids
Lacewing beneficial insect
Lacewing beneficial insect
Predatory mite hunting a red spider mite
Predatory mite hunting a red spider mite
Predatory "Rove" beetle
Predatory "Rove" beetle
Parasitic midge eating an aphid
Parasitic midge eating an aphid
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Predatory Ladyird

Predatory Lacewing

Predatory Mite hunting Spider Mites

Predatory Rove Beetle

Parasitic Midge with Yellow Aphids

What's The Difference Between Pesticide And Insecticide?

Pesticides is the general term used to describe substances that are used to kill, repel, or control pests. Pesticides can be used to target a wide range of pests, including insects, weeds, rodents, fungi, and bacteria.

Insecticides are a specific type of pesticide that are designed to target and kill insects specifically. They are a subset of pesticides, so all insecticides are pesticides, but not all pesticides are insecticides.

Other types of pesticides include:

  • Herbicides: Target and kill unwanted plants (weeds).

  • Rodenticides: Target and kill rodents like mice and rats.

  • Fungicides: Target and kill fungi that can harm plants.


So, while insecticides are a type of pesticide, the term “pesticide” covers a broader range of products designed to control different types of pests. Both can be used combined to kill pests from houseplants once and for all.

Prayer plant
Prayer plant
Plant being sprayed with a spray bottle
Plant being sprayed with a spray bottle
Inspecting a houseplant for pests
Inspecting a houseplant for pests

Chemical Houseplant Insecticide

When natural remedies and beneficial insects aren't enough to manage pest infestations, chemical pest treatments can provide a more immediate solution. These treatments are designed to target specific pests much harder than natural remedies. Chemical insecticides they should be used carefully to avoid harming beneficial insects, plants, and the environment.

When using chemical pest treatments, always follow the manufacturer’s instructions and safety guidelines. Wear protective gloves, a chemical FF3 mask that covers your nose and mouth, and protective clothing. Avoid applying on windy days, and keep children and pets away from treated areas until the product has dried.

To avoid pests becoming used to your chemical spray, rotate between different types of insecticides to prevent pests from developing resistance. For a list of all chemical treatments, which pests they kill and where you can buy them, see our list of pesticides.

Spider mite webs in a plant pot
Spider mite webs in a plant pot
Red spider mite
Red spider mite
White spider mite
White spider mite
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Systemic Houseplant Pesticide

Unlike traditional pesticides that sit on the surface of plants, systemic pesticides are absorbed into the plant's system through the roots or leaves and distributed throughout the entire plant via its vascular system. This means that every part of the plant, from the stems and leaves to the buds, is protected.

Benefits of Systemic Pesticides
  1. Effective Long-Term Pest Control: Once absorbed by the plant, systemic pesticides provide prolonged future protection against pests.

  2. Targeted Action on Pests: Systemic pesticides only affect pests that feed on the treated plant, ensuring more targeted pest control.

  3. Broad-Spectrum Control: They can control a wide variety of pests, including insects, mites, nematodes, fungal, and bacterial diseases.

  4. Reduced Risk of Drift: Since systemic pesticides are inside the plant, they are less likely to come into contact with birds, pets, or people.

The Ultimate Nuke for Plant Pests

Systemic pesticides are the “ultimate nuke” for plant pests because of their ability to eliminate pests from within. When a pest feeds on a treated plant, it ingests the pesticide and dies. This method of pest control is effective because it targets the insects directly and remains in effect for an extended period.

Regulatory Differences: UK vs. US

In the UK, many systemic pesticides, particularly those containing neonicotinoids, have been banned due to their harmful effects on bees and other beneficial insects. These bans are part of a broader effort to protect pollinators and the environment. However, in the US, systemic pesticides are still widely available and used. This ease of access has led to concerns about their overuse and potential environmental impact. To see what's available in England, Ireland, Scotland & Wales, check our list of all available pesticides and insecticides in the UK, what they do, what pests they kill, what brands make them, and where to buy them. We don't currently have a US list, however, it will be coming soon.

Houseplant Pesticide Safety Information
What to Wear Whilst Applying Pesticides

Safety goggles or a face shield can help prevent chemicals from splashing into your eyes. Use chemical-resistant gloves to protect your hands from exposure. Wear a mask or respirator to avoid inhaling fumes or particles. Long-sleeved shirts, long pants, and shoes are essential to prevent skin contact.

Applying Pesticide Safely

Always read and follow the instructions on the pesticide label. This includes proper usage, dilution, and application techniques. Prepare pesticides in a well-ventilated area, preferably outdoors, to minimize inhalation risks. Ensure that sprayers and other application equipment are in good working condition to avoid leaks and spills. Apply pesticides directly to the affected areas, avoiding excessive use and reducing the risk to beneficial insects. Wash your hands, face, and any exposed skin thoroughly after handling pesticides. Remove and wash contaminated clothing separately.

Handling and Storing Pesticides

Store pesticides in the original bottles, sealed, away from children and pets. Label any leftovers. Never pour leftovers down the drain or into the soil.

Man looking very afraid in his PPE
Man looking very afraid in his PPE
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How To Get Rid Of Mealy Bugs From Houseplants

  1. Identify Mealy Bugs

    Look for small, white, cottony insects on the stems, leaves, and leaf axils of your houseplants. They often leave behind a sticky residue called honeydew, which can attract other pests and promote the growth of sooty mould.

  2. Isolate Infested Plants

    To prevent the spread of mealy bugs to other houseplants, isolate the infested plant immediately. This will help contain the infestation.

  3. Remove Mealy Bugs Manually

    For small infestations, you can manually remove mealy bugs using a soft brush or cotton swab dipped in rubbing alcohol. Gently dab the mealy bugs to kill them on contact. Be thorough and check all hidden areas, such as leaf axils and the underside of leaves.

  4. Spray Off the Plant

    Take the infested plant to a sink or shower and give it a gentle spray with water to dislodge the mealy bugs. This can help remove a significant number of the pests. Be careful not to damage the plant with too strong a spray.

  5. Treat with Rubbing Alcohol

    Dip a Q-tip or cotton swab in rubbing alcohol and carefully dab the mealy bugs on the plant. The alcohol will kill the mealy bugs on contact. Repeat this process every few days until the infestation is under control.

  6. Use Insecticidal Soap or Neem Oil

    Apply insecticidal soap or neem oil to the houseplant, following the manufacturer's instructions. You can mix them together at the ratio of 1 litre of water, 2 tablespoons of soap, and two teaspoons of neem oil. Spray the solution on all parts of the plant, especially the hidden areas where mealy bugs hide.

  7. Monitor the Plant Regularly

    After treatment, keep a close eye on the plant for any signs of re-infestation. Mealy bugs can be persistent, so regular monitoring and early intervention are key to keeping them at bay. We really mean that. They're nasty little things that just keep on coming back.

  8. Prevent Future Infestations

    Inspect New Plants: Always inspect new houseplants for signs of mealy bugs before bringing them into your home.

    Maintain Plant Health: Keep your houseplants healthy and stress-free, as healthy plants are less susceptible to pest infestations.

    Attract Beneficial Insects: Although challenging indoors, consider introducing beneficial insects like their natural predator, ladybugs.

Mealy bugs on plant stem
Mealy bugs on plant stem

The Ultimate Mealy Bug Guide: How To Kill Mealy Bugs

Mealy bugs are small, white, fluffy insects that can infest houseplants, causing significant damage by sucking the sap from the plants. Here's a step-by-step guide to help you effectively get rid of mealy bugs from your houseplants.

How To Get Rid Of Mealy Bugs When Natural Solutions Don't Work
Pesticides Suitable For Mealy Bugs

BugClear Ultra Gun is a systemic pesticide, which is the nuke option for these unwanted guests. For harsher chemical treatments, here are 6 different types of pesticide and some insecticides to try over time: Py Bug Killer, Vitax Plant Guard Pest & Disease Control, SB Plant Invigorator, Provanto Ultimate Bug Killer, Resolva Bug Killer, and BugClear Ultra Gun.

Opinions from Real People on Forums

Some houseplant enthusiasts have shared unique and less common methods for dealing with mealy bugs:

  • Tenting/Fumigating: A few users have tried tenting or fumigating their plants with insecticides to create a contained environment for more effective treatment. Both DeadFast Greenhouse Smoke Generator 2 and Vitax Greenhouse Fumigator would work well for mealy bugs.

  • Cryptolaemus Ladybird (Mealy Bug Destroyer): Some gardeners have introduced parasitic ladybugs, which are natural predators of mealy bugs, into their indoor spaces. While effective, this method requires a warm and stable environment.

  • Meths (Methylated Spirits): A few people have used meths (methylated spirits) to wipe down plants and kill mealy bugs on contact. This method is time-intensive but can be very effective.

  • Diatomaceous Earth: Sprinkling diatomaceous earth around the base of the plant and in the soil can help control mealy bugs by dehydrating them.

  • Soap Suds Spray: Some users have tried spraying plants with a mild soap solution, which can help remove mealy bugs without harming the plant.

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How To Get Rid Of Spider Mites From Houseplants

  1. Identify Spider Mites

    Look for tiny, often red or brown, arachnids on the stems, leaves, and leaf axils of your houseplants. They frequently leave behind fine webbing and cause speckled or yellowed leaves.

    Isolate Infested Plants

    To prevent the spread of spider mites to other houseplants, isolate the infested plant immediately. This will help contain the infestation.

    Remove Spider Mites Manually

    For small infestations, you can manually remove spider mites using a soft brush or cotton swab dipped in rubbing alcohol. Gently dab the spider mites to kill them on contact. Be thorough and check all hidden areas, such as leaf axils and the underside of leaves.

    Spray Off the Plant

    Take the infested plant to a sink or shower and give it a gentle spray with water to dislodge the spider mites. This can help remove a significant number of the pests. Be careful not to damage the plant with too strong a spray.

    Treat with Rubbing Alcohol

    Dip a Q-tip or cotton swab in rubbing alcohol and carefully dab the spider mites on the plant. The alcohol will kill the spider mites on contact. Repeat this process every few days until the infestation is under control.

    Use Insecticidal Soap or Neem Oil

    Apply insecticidal soap or neem oil to the houseplant, following the manufacturer's instructions. You can mix them together at the ratio of 1 litre of water, 2 tablespoons of soap, and two teaspoons of neem oil. Spray the solution on all parts of the plant, especially the hidden areas where spider mites hide.

    Monitor the Plant Regularly

    After treatment, keep a close eye on the plant for any signs of re-infestation. Spider mites can be persistent, so regular monitoring and early intervention are key to keeping them at bay. We really mean that. They're nasty little things that just keep on coming back.

    Prevent Future Infestations
    • Inspect New Plants: Always inspect new houseplants for signs of spider mites before bringing them into your home.

    • Maintain Plant Health: Keep your houseplants healthy and stress-free, as healthy plants are less susceptible to pest infestations.

    • Attract Beneficial Insects: Although challenging indoors, consider introducing beneficial insects like their natural predatory ladybugs.

    • Use Predatory Mites For Spider Mites: Phytoseiulus persimilis is a predatory mite which the perfect beneficial insect to control two-spotted spider mites against all stages of the life cycle. Amblyseius andersoni is the perfect predatory mite for spider mites. Great in colder conditions. Amblyseius californicus survives up to ten days without food, this is a great predatory mite for spider mites.

    • Use Nematodes: It may be beneficial to use Steinernema feltiae, but this is not proven to help, as spider mites do not solely reside in soil.

Red spider mite
Red spider mite

The Ultimate Spider Mite Guide: How To Kill Spider Mites

Spider mites are tiny, often red, or brown, arachnids that can infest houseplants, causing significant damage by feeding on the plant’s sap. Here's a step-by-step guide to help you effectively get rid of spider mites from your houseplants. They leave behind huge loads of tiny spider webs, close to the base of the plant. Check the images, it's super freaky. They're just tiny spiders. Eww.

What To Do When Natural Solutions Don't Work
Pesticides Suitable For Spider Mites

BugClear Ultra Gun is a systemic pesticide, which is the nuke option for these unwanted guests. Spider Mite Control is a highly recommended product. For a gentler option, you can try the chrysanthemum derived Bug Clear Ultra 2. For harsher chemical treatments, here are 6 different types of insecticide and pesticide to try over time: Py Bug Killer, Vitax Plant Guard Pest & Disease Control, SB Plant Invigorator, Provanto Ultimate Bug Killer, Resolva Bug Killer, and BugClear Ultra Gun.

Opinions from Real People on Forums

Here are some opinions from real people on forums about getting rid of spider mites:

  1. Spraying Technique: Many users recommend spraying at least three times at three-day intervals to coincide with egg hatching. This helps target both larvae and adults.

  2. Predatory Bugs: Introducing predatory bugs like green lacewings or predatory mites can be very effective. These natural predators can help control spider mite populations.

  3. Homemade Solutions: Alternating between alcohol and a mix of soap/neem/water is a common DIY spray approach. Users have found this method reduces spider mite numbers, though it may require persistence. Mix 1 litre of water with 2 tablespoon of soap and 2 teaspoon of neem oil.

  4. Hydrogen Peroxide: Some users suggest spraying plants with 3% hydrogen peroxide and ensuring good airflow around the plant. This method is inexpensive and can be quite effective.

  5. Shower Treatment: Taking the infested plant to the shower and spraying it with water or a mild soap solution can help dislodge spider mites. Some users recommend wrapping the pot in plastic to prevent soil loss.

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How To Get Rid Of Aphids From Houseplants

Look for small, pear-shaped insects, often green, black, or brown, on the stems, leaves, and leaf axils of your houseplants. They frequently leave behind a sticky residue called honeydew, which can attract other pests and promote the growth of sooty mould.

Isolate Infested Plants

To prevent the spread of aphids to other houseplants, isolate the infested plant immediately. This will help contain the infestation.

Remove Aphids Manually

For small infestations, you can manually remove aphids using a soft brush or cotton swab dipped in rubbing alcohol. Gently dab the aphids to kill them on contact. Be thorough and check all hidden areas, such as leaf axils and the underside of leaves.

Spray Off the Plant

Take the infested plant to a sink or shower and give it a gentle spray with water to dislodge the aphids. This can help remove a significant number of the pests. Be careful not to damage the plant with too strong a spray.

Treat with Rubbing Alcohol

Dip a Q-tip or cotton swab in rubbing alcohol and carefully dab the aphids on the plant. The alcohol will kill the aphids on contact. Repeat this process every few days until the infestation is under control.

Use Insecticidal Soap or Neem Oil

Apply insecticidal soap or neem oil to the houseplant, following the manufacturer's instructions. You can mix them together at the ratio of 1 litre of water, 2 tablespoons of soap, and two teaspoons of neem oil. Spray the solution on all parts of the plant, especially the hidden areas where aphids hide.

Monitor the Plant Regularly

After treatment, keep a close eye on the plant for any signs of re-infestation. Aphids can be persistent, so regular monitoring and early intervention are key to keeping them at bay. We really mean that. They're nasty little things that just keep on coming back.

Prevent Future Infestations
  • Inspect New Plants: Always inspect new houseplants for signs of aphids before bringing them into your home.

  • Maintain Plant Health: Keep your houseplants healthy and stress-free, as healthy plants are less susceptible to pest infestations.

  • Attract Beneficial Insects: Although challenging indoors, consider introducing beneficial insects like their natural predators, ladybugs.

  • Use Predatory Insects For Aphids: Predatory ladybugs and lacewings are effective natural predators of aphids, helping to control their populations.

  • Use Nematodes: While not proven specifically for aphids, using beneficial nematodes like Steinernema feltiae can help control soil-dwelling pests that may contribute to aphid problems. Parasitic wasps Aphidius colemani: Effective predators of aphids in houseplants.

The Ultimate Aphid Guide: How To Kill Aphids

Aphids are small, pear-shaped insects, often green, black, or brown, that can infest houseplants, causing significant damage by sucking the sap from plants. Here's a step-by-step guide to help you effectively get rid of aphids from your houseplants. They leave behind a sticky residue called honeydew, which can attract other pests and promote the growth of sooty mould. Aphids are tiny, but their colonies can grow rapidly, infesting the entire plant.

What To Do When Natural Treatments Haven't Worked
Pesticides Suitable For Aphids

BugClear Ultra Gun is a systemic pesticide, which is the nuke option for these unwanted guests. Spider Mite Control is a highly recommended more natural product. For a gentler option, you can try the chrysanthemum derived Bug Clear Ultra 2. For harsher chemical treatments, here are 6 different types of pesticide and insecticide to try over time for stubborn infestations: Py Bug Killer, Vitax Plant Guard Pest & Disease Control, SB Plant Invigorator, Provanto Ultimate Bug Killer, Resolva Bug Killer, and BugClear Ultra Gun.

Opinions from Real People on Forums

Here are some opinions from real people on forums about getting rid of aphids:

  1. Spraying Technique: Many users recommend spraying at least three times at three-day intervals to coincide with egg hatching. This helps target both larvae and adults.

  2. Predatory Bugs: Introducing predatory bugs like green lacewings or predatory mites can be very effective. These natural predators can help control spider mite populations.

  3. Homemade Solutions: Alternating between alcohol and a mix of soap/neem/water is a common DIY spray approach. Users have found this method reduces spider mite numbers, though it may require persistence. Mix 1 litre of water with 2 tablespoon of soap and 2 teaspoon of neem oil.

  4. Hydrogen Peroxide: Some users suggest spraying plants with 3% hydrogen peroxide and ensuring good airflow around the plant. This method is inexpensive and can be quite effective.

  5. Shower Treatment: Taking the infested plant to the shower and spraying it with water or a mild soap solution can help dislodge spider mites. Some users recommend wrapping the pot in plastic to prevent soil loss.

Green aphids
Green aphids
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How To Get Rid Of Thrips From Houseplants

Look for tiny, slender insects that can range in colour from yellow to brown or black on the stems, leaves, and flowers of your houseplants. Thrips often leave behind silvery streaks or patches on leaves, and their feeding can cause leaves to curl or distort.

Isolate Infested Plants

To prevent the spread of thrips to other houseplants, isolate the infested plant immediately. This will help contain the infestation.

Remove Thrips Manually

For small infestations, you can manually remove thrips using a soft brush or cotton swab dipped in rubbing alcohol. Gently dab the thrips to kill them on contact. Be thorough and check all hidden areas, such as leaf axils and the underside of leaves.

Spray Off the Plant

Take the infested plant to a sink or shower and give it a gentle spray with water to dislodge the thrips. This can help remove a significant number of the pests. Be careful not to damage the plant with too strong a spray.

Treat with Rubbing Alcohol

Dip a Q-tip or cotton swab in rubbing alcohol and carefully dab the thrips on the plant. The alcohol will kill the thrips on contact. Repeat this process every few days until the infestation is under control.

Use Insecticidal Soap or Neem Oil

Apply insecticidal soap or neem oil to the houseplant, following the manufacturer's instructions. You can mix them together at the ratio of 1 litre of water, 2 tablespoons of soap, and two teaspoons of neem oil. Spray the solution on all parts of the plant, especially the hidden areas where thrips hide.

Monitor the Plant Regularly

After treatment, keep a close eye on the plant for any signs of re-infestation. Thrips can be persistent, so regular monitoring and early intervention are key to keeping them at bay. We really mean that. They're nasty little things that just keep on coming back.

Prevent Future Infestations
  • Inspect New Plants: Always inspect new houseplants for signs of thrips before bringing them into your home.

  • Maintain Plant Health: Keep your houseplants healthy and stress-free, as healthy plants are less susceptible to pest infestations.

  • Use Predatory Mites For Thrips: Species like Amblyseius swirskii and Amblyseius Cucumeris are both effective natural predators of thrips, helping to control their populations.

  • Use Nematodes: While not specifically targeted at thrips, using beneficial nematodes like Steinernema feltiae can help control soil-dwelling stages of thrips and other pests.

Yellowing leaf with black dots
Yellowing leaf with black dots

The Ultimate Thrip Guide: How To Kill Thrips

Thrips are tiny, slender insects that can range in colour from yellow to brown or black, and they can infest houseplants, causing significant damage by piercing plant cells and sucking out their contents. They can be a little tricky to eradicate. Here's a step-by-step guide to help you effectively get rid of thrips from your houseplants. They often leave behind silvery streaks or patches on leaves, and their feeding can cause leaves to curl, go yellow, go brown or to distort. Thrips are small but can reproduce quickly, leading to heavy infestations that can spread rapidly across your plants.

What To Do When Natural Methods Haven't Worked
Pesticides Suitable For Thrips

BugClear Ultra Gun is a systemic pesticide, which is the nuke option to kill thrips once and for all, with a 4-week-long window of action. For a gentler option, you can try the chrysanthemum derived Bug Clear Ultra 2. For harsher chemical treatments, here are 4 different types of insecticide and pesticide to try over time: Py Bug Killer, Provanto Ultimate Bug Killer, Resolva Bug Killer, and BugClear Ultra Gun.

Opinions from Real People on Forums

Here are some opinions from real people on forums about getting rid of thrips:

  1. Spraying Technique: Many users recommend spraying at least three times at three-day intervals to coincide with egg hatching. This helps target both larvae and adults.

  2. Predatory Bugs: Introducing predatory bugs like green lacewings or steinernema feltiae nematodes can be very effective. These natural predators can help control spider mite populations.

  3. Homemade Solutions: Alternating between alcohol and a mix of soap/neem/water is a common DIY spray approach. Users have found this method reduces spider mite numbers, though it may require persistence. Mix 1 litre of water with 2 tablespoon of soap and 2 teaspoon of neem oil.

  4. Hydrogen Peroxide: Some users suggest spraying plants with 3% hydrogen peroxide and ensuring good airflow around the plant. This method is inexpensive and can be quite effective.

  5. Shower Treatment: Taking the infested plant to the shower and spraying it with water or a mild soap solution can help dislodge spider mites. Some users recommend wrapping the pot in plastic to prevent soil loss.

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How To Get Rid Of Scale Insects From Houseplants
Identify Scale Insects

Look for small, dome-shaped insects that can range in colour from brown to black, to gray, often appearing as bumps on the stems and leaves of your houseplants. Scale insects are typically immobile and can be found in clusters.

Isolate Infested Plants

To prevent the spread of scale insects to other houseplants, isolate the infested plant immediately. This will help contain the infestation.

Remove Scale Insects Manually

For small infestations, you can manually remove scale insects using a soft brush or cotton swab dipped in rubbing alcohol. Gently dab the scale insects to kill them on contact. Be thorough and check all hidden areas, such as leaf axils and the underside of leaves.

Spray Off the Plant

Take the infested plant to a sink or shower and give it a gentle spray with water to dislodge the scale insects. This can help remove a significant number of the pests. Be careful not to damage the plant with too strong a spray.

Treat with Rubbing Alcohol

Dip a Q-tip or cotton swab in rubbing alcohol and carefully dab the scale insects on the plant. The alcohol will kill the scale insects on contact. Repeat this process every few days until the infestation is under control.

Use Insecticidal Soap or Neem Oil

Apply insecticidal soap, and or neem oil to the houseplant. You can mix them together at the ratio of 1 litre of water, 2 tablespoons of soap, and two teaspoons of neem oil. Spray the solution on all parts of the plant, especially the hidden areas where scale insects hide.

Monitor the Plant Regularly

After treatment, keep a close eye on the plant for any signs of re-infestation. Scale insects can be persistent, so regular monitoring and early intervention are key to keeping them at bay.

Prevent Future Infestations
  • Inspect New Plants: Always inspect new houseplants for signs of scale insects before bringing them into your home.

  • Maintain Plant Health: Keep your houseplants healthy and stress-free, as healthy plants are less susceptible to pest infestations.

  • Use Natural Predators: Introducing beneficial insects like predatory ladybugs or predatory green lacewings.

Brown crispy leaf
Brown crispy leaf

The Ultimate Scale Insect Guide: How To Kill Scale Insects

Thrips are tiny, slender insects that can range in colour from yellow to brown or black, and they can infest houseplants, causing significant damage by piercing plant cells and sucking out their contents. They can be a little tricky to eradicate. Here's a step-by-step guide to help you effectively get rid of thrips from your houseplants. They often leave behind silvery streaks or patches on leaves, and their feeding can cause leaves to curl, go yellow, go brown or to distort. Thrips are small but can reproduce quickly, leading to heavy infestations that can spread rapidly across your plants.

What To Do When Natural Treatments Fail
Pesticides Suitable For Scale Insects

Provanto Smart Bug Killer is a systemic pesticide, which is the nuclear option to kill scale insects for good, with a 4-week-long window of action. For harsher chemical treatments, here are 2 different types of pesticide and insecticide to try over time: Vitax Plant Guard Pest & Disease Control, and the more gentle SB Plant Invigorator.

Opinions from Real People on Forums

Here are some opinions from real people on forums about getting rid of scale insects:

  1. Manual Removal: Many users recommend manually removing scale insects using a soft brush or cotton swab dipped in rubbing alcohol. This method can be effective for small infestations but requires persistence.

  2. Systemic Insecticides: Some users have had success with systemic insecticides, such as Bonide systemic granules, which are US only, they would be binned at the border during import to the UK. Provanto Smart Bug Killer is the only systemic scale insect killer available in the UK.

  3. Beneficial Insects: Introducing beneficial insects like ladybugs and lacewings can help control scale insect populations. Some users have had success with green lacewings, which are tiny and don't cause issues indoors.

  4. Garlic Insecticide: Some users have tried homemade garlic insecticide, which involves making a concentrated garlic solution. While it can be effective, it requires a strong nose due to the strong odour.

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Fungus Gnat Guide: How To Kill Fungus Gnats

For the ultimate how to guide on getting rid of fungus gnats, check our dedicated fungus gnat treatment guide. It covers every single way that you can treat fungus gnats, from natural solutions, to chemicals, systemic insecticides and mechanical removal. Otherwise, if you just want a quick guide, here are a few effective methods to kill fungus gnats:

  1. Reduce Watering: Fungus gnats thrive in moist soil, so allow the top layer of soil to dry out between watering. This helps break their life cycle.

  2. Yellow Sticky Traps: Place yellow sticky traps near your plants to catch adult gnats. This helps reduce their population.

  3. Mosquito Bits: Sprinkle mosquito bits on the soil surface. These contain a bacterium that kills fungus gnat larvae.

  4. Hydrogen Peroxide Solution: Mix one part 3% hydrogen peroxide with four parts water and use it to water your plants. This will kill larvae in the soil.

  5. Neem Oil: Apply neem oil to the soil and plant surfaces. It disrupts the life cycle of fungus gnats and other pests.

  6. Diatomaceous Earth: Sprinkle diatomaceous earth on the soil surface. It dehydrates and kills the larvae.

  7. Beneficial Nematodes: Introduce beneficial nematodes like steinernema feltiae to the soil. These microscopic organisms will kill fungus gnat larvae.

  8. Top Dressing: Cover the soil with a layer of sand or gravel to prevent adult gnats from laying eggs.

Pesticides For Houseplants: UK Pesticide Guide 2024

List Last Updated: 22nd December 2024
Add your product for free to the list of registered pesticides
Discontinued products? Things missing? Let us know.

Natural Pyrethrum Or Pyrethrins

Pyrethrum, derived from chrysanthemum flowers, contains natural insecticides called pyrethrins. These compounds are effective against a wide range of pests by attacking their nervous system. Pyrethrins are fast-acting, biodegradable, and less harmful to humans and pets when used properly. They kill various houseplant pests such as aphids, spider mites, whiteflies, and thrips.

  1. Bug Clear Ultra 2

  2. Neudorff Bug Free Bug Larvae Killer

  3. Py Insect Killer Powder

Cypermethrin

Cypermethrin is a synthetic pyrethroid insecticide that acts as a fast-acting neurotoxin, effectively controlling a wide range of pests by interfering with their nerve signalling. Cypermethrin is effective against aphids, mealy bugs, spider mites, thrips, and fungus gnats. It is non-systemic and degrades quickly on soil but remains active on indoor surfaces for longer periods.

  1. Py Bug Killer

  2. RoseClear Ultra Gun 2

Permethrin Smoke formulations

Often thought of as the easiest solution to treating whole collection pest infestations, permethrin smoke formulations are ready-to-use insecticidal smokes containing permethrin, a synthetic pyrethroid. These smokes are effective for the instant knock-down of flying and crawling insects, including aphids, mealy bugs, spider mites, thrips, scale insects, and fungus gnats.

  • . They are ideal for use in enclosed spaces. The smoke is biodegradable, leaves no residue, and has low toxicity to mammals. When using permethrin smoke formulations indoors, make sure to follow the manufacturer's instructions carefully. Ensure the area is well-ventilated, remove or cover food items, and keep pets and people away from the treated space until the smoke has cleared. This ensures safe and effective use while minimizing exposure to the chemicals.

  1. DeadFast Greenhouse Smoke Generator 2

  2. Vitax Greenhouse Fumigator

Plant oils, fatty acids and extracts

Plant oils, fatty acids, and extracts are natural alternatives to chemical pesticides, offering a more eco-friendly approach to pest control. These botanical insecticides work by repelling pests, disrupting their feeding behaviour, or acting as toxicants. Common ingredients include garlic oil, canola oil, sesame oil, soybean oil, thyme, rosemary, peppermint, cinnamon, and clove extracts. They are effective against a variety of houseplant pests such as aphids, mealy bugs, spider mites, and scale insects.

  1. Bug Clear Fruit & Veg Ultra

  2. Growing Success Winter Tree Wash Concentrate

  3. Growing Success Rose Guard

  4. Vitax Winter Tree Wash

  5. Vitax Rose Guard

  6. Vitax Plant Guard Pest & Disease Control

  7. RoseClear 3 in 1 Action

Plant invigorators

Plant invigorators are products that combine nutrients to stimulate plant growth with surfactants or fatty acids that have a physical mode of action against pests. They help strengthen plants, making them more resilient to pests and diseases. Common pests controlled by plant invigorators include aphids, mealy bugs, spider mites, and scale insects. These products are environmentally friendly, safe for use around pets and wildlife, and do not leave harmful residues on plants.

  1. Doff Universal Bug Control

  2. Doff Roseshield 2 in 1 Bug & Fungus Control

  3. Ecofective Bug and Mildew Control

  4. Ecofective Bug Control

  5. Ecofective Houseplant Bug Control

  6. Ecofective Rose Defender 3 in 1

  7. Growing Success Bug Stop

  8. SB Plant Invigorator — our personal favourite.

  9. Westland Rose Guard

Deltamethrin

Deltamethrin is a synthetic pyrethroid insecticide used to control a wide range of pests. It works by disrupting the nervous system of insects, leading to paralysis and death. Deltamethrin is effective against flying insects like aphids, mealy bugs, spider mites, thrips, and fungus gnats. It is commonly indoors for spot treatments. However, it is toxic to aquatic life and can cause skin and respiratory irritation in humans

  1. Baby Bio Houseplant Bug Killer

  2. Provanto Ultimate Bug Killer

  3. Provanto Ultimate Fruit & Vegetable Bug Killer

  4. Provanto Sprayday Greenfly Killer

  5. Toprose Bug Killer

Lambda-cyhalothrin

Lambda-cyhalothrin is a synthetic pyrethroid insecticide used to control a wide range of pests. It works by disrupting the nervous system of insects, leading to paralysis and death. This insecticide is effective against pests such as aphids, mealy bugs, spider mites, thrips, and fungus gnats. However, it is highly toxic to fish, aquatic invertebrates, and bees, and should be used with caution to minimize environmental impact.

  1. Resolva Bug Killer

Acetamiprid

Acetamiprid is a neonicotinoid insecticide that targets the nervous system of insects, causing paralysis and death. It is effective against aphids, mealy bugs, spider mites, and thrips. Acetamiprid is considered to have low toxicity to mammals and degrades rapidly in soil, making it a relatively safe option when used as directed. Acetampiprid is the only neonicotinoid that can still be used in the UK and the EU. Thankfully for houseplant pest infestations that have become immune to other treatments, acetamiprid has been re-approved for use until 2033, however, use with caution due to the environmental issues when exposed to the environment. Always follow the manufacturer's instructions for disposal and never tip leftovers down the drain, or into soil.

  1. BugClear Ultra Gun

  2. RoseClear Ultra Gun

  3. BugClear Ultra Vine Weevil Killer

Flupyradifurone

Flupyradifurone is a systemic insecticide belonging to the butenolide class, developed by Bayer CropScience under the name Sivanto. It targets sap-feeding pests such as aphids, thrips, and scale insects by interfering with their nervous system. Flupyradifurone is known for its fast action, low toxicity to non-target organisms, and environmental safety, making it suitable for integrated pest management (IPM) programs. It is effective against pests that damage fruits, vegetables, and other crops.

  1. Provanto Smart Bug Killer

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Edited & Fact Checked By: The Houseplant Shop

Article Published: 5th December 2024

The Houseplant Shop's Author Image
The Houseplant Shop's Author Image
About The Houseplant Shop:
Independent Houseplant Nursery
Horticultural Specialists
Managing Over 250 Houseplant Species Onsite
Over 15 Years Of Experience With Horticulture

As head of horticulture, Sarah manages the care and propagation of over 250 plant species at a commercial houseplant nursery. With over 15 years of experience in horticulture, specializing in houseplants, Sarah has extensive expertise in plant biology, soil science, and integrated pest management. She continually reviews and integrates the latest research into her plant care guides. Dedicated to educating others, Sarah has spent years diagnosing houseplant care issues and sharing her real-world experience. Her commitment to scientific accuracy and helping people diagnose plant health issues has established her as a trusted authority and expert in the field.

The Houseplant Shop is a dedicated houseplant nursery, growing all of their own stock from their botanical library of over 250 houseplant species. The nursery staff are horticultural experts who have dedicated their lives to cultivating and nurturing over 250 different species of houseplants, focusing on Aroids, tropical plants, and NOID collectables. All their plants are grown in house in Britain to be more environmentally friendly. The nursery is proud to have been featured by the Royal Horticultural Society (RHS) as a 100% peat free nursery.

Recommended Further Reading:

People also looked at: Fungus Gnat Treatment Guide

How We Reviewed This Article:

Our horticultural experts continually monitor the houseplant space, and we update our articles when new information becomes available. We are committed to providing current and reliable information. If you have some information that you think would be helpful in this article, we'd love to hear from you. Our team works hard to revise articles for factual accuracy, and we regularly update our pages with new information, techniques, tips, images, trade secrets, and real world experience from the team here at the houseplant nursery. You can find a list of the article updates below.

Written By: Sarah Brooks, Head of Horticulture

Article Received: 22nd November 2024

Copyright: The Houseplant Shop (https://thehouseplant.shop)
The use, distribution, or reproduction is permitted, provided the original copyright owner is credited and that the original publication on this website is cited with a direct link to the article, only with these terms. Any other use is not permitted.

List of Article Updates:

20th December 2024: Minor UI updates
22nd December 2024: Updated approved pesticide list

Author Bio:

Author: Sarah Brooks,
Head of Horticulture at The Houseplant Shop