Woodworm treatment and Pest Control in Nairobi & Kenya

The best Pest control services , fumigation and woodworm treatment in and around Nairobi and the rest of Kenya. Get these services by contacting Bestcare Pest Control on 0722554435. With woodworm, it’s important to act quickly and use the correct woodworm treatment. In order to do this, you need to correctly identify the type of wood-boring beetle.

Woodworm is the common term used to refer to the larvae of all wood boring beetles. There are several species found in Kenya, but most of the damage is caused by the offspring of the Common Furniture beetle.

What does a woodworm look like?

Woodworm larvae are usually a creamy white colour and have curved bodies. It’s highly unlikely you’ll ever actually see woodworm larvae, as they stay hidden munching away on timber until they are fully-grown. Adult wood boring beetles look different depending on their species: the Common Furniture beetle is a brown winged beetle, typically 3-4mm in length.

Life Cycle of Woodworm

The complete lifecycle of a woodworm takes place over a two to five year period. There are three stages of woodworm development egg laying, hatching/tunnelling, and transformation:

Egg laying phase

The woodworm cycle begins when an adult female wood boring beetle lands on a wooden surface and lays her eggs just under the surface in pores, cracks and crevices. Her aim is to secure the eggs in the safest condition possible to give them the best chance of survival. In any given laying cycle, a female can lay anything between 20-50 eggs in a single batch.

Hatching and tunnelling phase

Within a matter of weeks the eggs will hatch from the bottom to produce larvae. These small larvae will then burrow their way through the wood for anything between two to five years. Over the course of this time, a single larvae will tunnel extensively which is how large batches of the creatures can seriously damage structural integrity.


As time passes, the larvae begins to mature and will tunnel its way towards the surface and create a “pupil chamber”. This small room acts as a final staging area where the larvae can rest and begin its transformation into an adult beetle. When the time is right, the newly transformed beetle will bore its way to the surface and fly away, ready to mate with a female and restart the process.

Types of Wood Boring Beetles

Some of the most common wood boring beetles are: Common Furniture beetles, Deathwatch beetles, House Longhorn beetles and Powder Post beetles.

What are the signs of woodworm infestation?

It can be tricky to tell if you have an active woodworm infestation as the main damage is caused inside the timber and you’re unlikely to see any visible results for years. However, there are a number of tell tale signs that can help you identify a potential woodworm infestation:

–       Small round holes in your woodwork, typically 1mm to 2mm in diameter

–       Fine, powdery dust around these holes (known as frass)

–       Crumbly edges to boards and joists

–       Tunnels within the timber

–       Weak or damaged timbers or flooring

Additional woodworm infestation signs:

Dead woodworm beetles around window sills

During the summer months (woodworm season is May to October), you may also spot adult wood boring beetles emerging from holes within the timber. Once a wood boring beetle has chewed itself out of hiding, it instinctively heads for light. So check for live or dead beetles around a suspected woodworm infestation and on the windowsills.

Presence of predatory beetles

Steely Blue beetles are the main predators of the Common Furniture beetle, so if you see them wandering around it’s probably because they’ve found a good food source close by.

Signs of beetle frass

Exit holes are probably the most obvious sign, but they do not occur until the adult beetles are ready to leave the timber, years after hatching as woodworm larvae. So it’s good practice to look for signs of frass on the back or underside of old furniture.

Finding holes and frass on your furniture or flooring isn’t always a cause for concern, they might just be signs of a previous woodworm infestation which has long been dormant. If you are unsure, it’s best to consult a woodworm specialist.

How to tell if woodworm are active?

Judging whether the damage you’ve found is an active woodworm infestation or not is always the hard part.

One popular method for testing for an active woodworm infestation is filling the exit holes with beeswax or tissue paper, leaving it for a year and seeing if any adult beetles bore through in the next year. Whether or not you give this a go, it’s always best to talk to a specialist before going ahead with any treatment.

Where You Can Find Woodworm

Woodworm can be found in all manners of wood surfaces including:

– Floorboards

– Furniture

– Joists/beams

– Roof timbers

– Painted wooden surfaces

– Wooden tools

– Joinery and structural timbers

– Decorative woodwork

– Musical instruments


What Attracts Woodworm?

Different species of wood boring beetles like different types of wood. Some prefer softwoods like pine, spruce and cedar. While others prefer hardwoods such as oak, ash and mahogany. All wood boring beetles like wood that is damp, because it’s easier to chew!

Damp wood

The Common Furniture beetle can be found in both softwoods and hardwoods. Though it has been found in many places, it generally prefers damp floorboards, loft timbers.

Female Furniture beetles tend to choose hardwoods with a moisture content of 28% or higher to give their larvae the best chance of pupating into adults. However, woodworm can be found living in timber down to 12% moisture content. The dryer the wood gets the harder it becomes for them to feed.

Unprotected wood

Unprotected wood with little to no laquer or protective finish is prefered by wood boring insects like woodworm. This is because exposed wood without varnish is more likely to be kinked, rough and therefore easy to nestle eggs into from a hatching perspective. Secondly, the lack of a sealant protection means that it’s easy for a newly hatched larvae to quickly bore through the grain.

What woods do woodworm dislike?

Common Furniture larvae will only eat the outer section or ‘sapwood’ of a tree. This is because it has more nutrients and is toxin-free, unlike the inner ‘heartwood’ of timbers like pine and oak. If your furniture is made from good quality heartwood, you are at much lower risk of getting a woodworm infestation. Sapwood is normally lighter than heartwood so you can spot where the high-risk areas are.

How serious is Woodworm Infestation?

The extent of damage caused depends on the species, the size of the infestation, and what has been infested. Not all woodworm is harmful. However, if left untreated over time, woodworm can seriously weaken timber, causing severe damage within its structure.

At this point, weakened structural components could give way resulting in a large repair expense or at worse; serious injury. It is for this reason that a woodworm infestation is a significant issue if found in:

  • Timber joists
  • Load-bearing wood
  • Roofing
  • Rafters
  • Structural timber

How to prevent woodworm
Though it’s difficult to keep woodworm out completely, you can definitely make your home less appealing by:

Keeping all wood dry – The wetter wood becomes, the easier it will be for larvae to bore through and live in. Female wood beetles want to give their offspring the best chance of survival so will select a wooden surface with this in mind.
Keeping your home heated and well ventilated – Heating your home to an adequate temperature while keeping it ventilated will reduce the chance of moisture buildup and saturation of wood.
Buying furniture made from good quality hardwood – Hardwood is known for being most resistant to woodworm infestation due to its density and lack of nutrients for woodworm larvae to live off.
Sealing wood with varnish – Varnish makes it harder for wood boring insects to penetrate a wooden surface. It is also toxic. Try to re-varnish or seal any surfaces that have worn away over time.
Carefully checking for signs of woodworm when purchasing antique or second-hand furniture – Always check that you are not bringing anything infested into your home, checking for the telltale signs described above.
Removing infected wood from your home – If you find out that a piece of timber is infested, remove it at once if possible.
Replacing infected timbers – Once infected timber has been removed, be sure to replace it with new timber that is suitably prepared with a protective finish and treated.
Treat the timber with a woodworm treatment – take the proactive step to prevent infestation and treat timber with a woodworm killer.
Using flytraps – Flytraps can be used in a preventative strategy to catch and contain adult wood boring beetles before they have a chance to mate.

How to get rid of woodworm
Before treating any kind of woodworm, it’s extremely important to correctly identify the type of woodworm you’re dealing with. If you are unsure, it’s always best to consult a specialist.

Surface treatments
If your woodworm problem only affects small items such as furniture, you can effectively treat it yourself using the right techniques and treatments.

You can easily treat Common Furniture beetles with a brush, dip or spray application of a Permethrin-based woodworm treatment on all timbers affected by woodworm. As a precaution you should also treat any close by timbers to protect against future outbreaks. Don’t forget to re-paint and re-varnish treated surfaces when they are dry.

Injection treatments
Death Watch beetle infestations occur deep within timber, so it is essential to treat by injection as well as a surface treatment. This can be done by injecting woodworm treatment spray into the exit holes left by the adult beetles. Or it can be done by drilling into the danger zone and filling the wood with a paste or gel woodworm treatment. The larvae of the Death Watch beetle often causes more harm than the Common Furniture beetle, so it’s good to check with a professional before going ahead with any treatment.

Death Watch Beetle by Gilles San Martin

If you suspect you have a House Longhorn woodworm infestation it’s always best to consult a specialist. All timber within the building will need to be treated and inspected for its structural integrity. If your timber is free from severe structural damage and the infestation is minor, it may be safe to go ahead and tackle it with the same treatments and methods you would use to treat Death Watch beetles. But you must be very careful with this species of woodworm.

A professional should treat any severe infestations that has caused extensive damage.

Woodworm Treatments
Permagard Woodworm Killer (Ready to use) is perfect for treating woodworm caused by Common Furniture beetles. It contains Permethrin, which is effective against all the life stages of wood boring insects. Other treatments can only target one life stage.

Our ready to use woodworm killer has been specifically designed to protect furniture, flooring, structural and other timbers. It is designed to be rapidly absorbed into the wood giving higher levels of penetration. It is odourless and can be applied either by brush or low-pressure spray to give long lasting protection. And at just over £10 ex VAT for five litres you save over a third when you buy our ready to use Woodworm Killer online.

Lignum Insecticide Pro is great for treating Death Watch Beetle. Once diluted in water, this high-strength concentrate offers long lasting protection preventing further re-infestation. When injecting timber, Lignum Dual Purpose Timber Gel offers deeper penetration than liquids ensuring maximum protection. Always check with a specialist if you are unsure which method to use.

Click here to view our full range of woodworm treatments, and please give our experts a call on 0117 982 3282 if you have any further questions about treating woodworm.

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