Longhorn Beetle - Identify - call us for help on 01626
331351 - speak to David or Angela
for Home Page
Why treat House Longhorn Beetle?
Because it's tunnels can severely and rapidly weaken floorboards and structural
timbers, eventually leading to collapse. It is often found in roof timbers, so
early diagnosis is essential.
How can I tell that I have House Longhorn Beetle?
From the noise - you can actually hear them eating your wood - and from the large,
oval holes. Don't wait until holes appear though - serious damage will have been
done by then - if you hear scratching noises call us on 01626 331351 or a local
Can I save timber that is being eaten right now?
Yes, if you inject Property Repair System's Ultra
Timber Paste into the active (listen, tap and drill) areas.
Longhorn Beetle - Hylotrupes
the UK House Longhorn Beetle used to be a Legally Notifiable Insect (no longer,
as it is deemed to be mainly confined to Europe at present) and should not be
treated without the prior involvement of a qualified Specialist. We can offer
that Specialist assistance, having two qualified members of Staff, David and Angela.
Longhorn Beetle causes potentially serious damage to softwood roofing timbers
within a specific area of south-east England. Preliminary results of a new BRE
survey indicate that most infestations are still within the area where protective
treatment of roof timbers is mandatory under the Building Regulations. However,
scattered infestations were still found in Great London, Kent, Sussex and Hampshire.
Properties built during the 1920s and 1930s were most commonly reported as infested.
There have been no reports of infestations in roof timbers treated in compliance
with the Regulations.
Longhorn Beetle requires more than surface treatment to eradicate an attack, because
the insects have a long life cycle and rarely visit the surface of the timber.
Treatment of 'normal' woodworm (Anobium punctatum) consists of surface treatment,
by brush or spray, which breaks the egg laying cycle. Because their life cycle
is short (up to 5 years) and their holes are considerably smaller than House Longhorn
Beetle, it is considered sufficient to treat the surfaces of the timber only -
for House Longhorn Beetle this will not be effective.
a House Longhorn Beetle treatment must incorporate two additional features - internal
injection treatment and weekly inspection.
remove all loose material by brush and vacuum and ensure that the timber will
absorb moisture. No surface treatment will penetrate varnish or paint. Next, drill
injection holes in the 'active' damaged areas - test for these using a hammer
first, listening for hollowness and then drill test holes. If in doubt call us
- we can recommend a local professional company, if necessary.
holes need to be blown or vacuumed out and then injected with Ultra
Timber Paste. The holes can
be capped with dowels, wood filler or plastic plugs.
finish with a surface treatment of either Boron
Ultra Gel, at 20% or Boron
Ultra 12 liquid at the 10%
regularly for 'munching' sounds and re-inject active areas with Ultra
LONGHORN SUMMARY OF CHARACTERISTICS
in buildings - sapwood of most
softwoods, particularly roofing timbers. Very occasionally found in softwood plywood.
- at present common only in area of England SW of London (mainly Surrey) where
special Building Regulations exist to protect structural timber and prevent further
spread. Small inactive infestations are common in buildings over 100 years old
Features - with large infestations,
larval feeding may be audible on warm days as scraping noise.
holes - few, large, oval, often
ragged, 6 - 10 mm diameter.
- oval, 6 - 10 mm diameter. Extensive and join up to cause almost complete disintegration
of sapwood but leaving thin, intact, surface skin. Dust-filled tunnels may cause
blisters or corrugations on surface of wood which may be observed with oblique
lighting from torch.
dust - cream-coloured, sausage-shaped
pellets. Gritty when rubbed between fingers. Small chips and wood fibres may be
misidentifications - Forest longhorn
beetle, jewel beetle, wharf borer beetle, wood wasp, Tenebrionid beetle, Bostrychid
LONGHORN BEETLE TREATMENTS
- House Longhorn requires
injection of Ultra
Timber Paste, as well as
surface treatment (see below).
BORON ULTRA 12 - Surface Treatment
unique powder concentrate, ready to dissolve in water, designed to treat timber
by brush, roller or spray.. It avoids the hazard problems of many liquid preservatives
by using only water as a carrier. It can also be used in most situations to replace
other less friendly contact type insecticides, including Permethrin.
The powder can be dissolved in water in two main concentrations, depending on
the intended use;
1 - 0.5kg of powder dissolves in 12.5 litres of water, for normal common furniture
beetle attack (woodworm, mild)
2 - 1 kg of powder dissolves in 10 litres of water, for severe common furniture
beetle attack and Dry Rot. Treats Dry Rot in timber and masonry, walls, floors
and foundations. Also used as part of a House Longhorn Beetle treatment.
you can purchase a ready mixed product;
to Use - 5 litres or 25 litres of Boron Ultra 12 - already dissolved in water,
for severe common furniture beetle attack and Dry Rot, both timber treatment and
irrigation of masonry & sub-site soil.
here for treatment prices and to buy -
is also available in 2.5kg packs - makes 62.5 litres for Woodworm Treatment or
25 litres for Dry Rot and Death Watch Beetle Treatments
consumption rates - 2 timber floors, terraced house - 25 litres, or a roof, terraced
house - 50 litres
many litres will you need -
follow the instructions on the product label, wear a dust mask when mixing and
check with us before purchasing to ensure that you are buying the correct product.
ECOBOR ULTRA GEL 20 - extra Surface Treatment
extra heavy duty 20% active clear Gel ideal for end grain and bearing area treatment
of beams and joists. Add to surface treatment with Boron Ultra 12 in damp or heavily
attacked areas. Also useful for medium to heavy active infestations of insect
attack and treatment of new timbers for use in vulnerable areas (e.g. skirting
Click here for
treatment prices and to buy -
ULTRA TIMBER PASTE - Deep Injected Treatment - for House Longhorn
essential treatment for House Longhorn Beetle - Permethrin in an emulsion cream
base. Has some odour and solvent. Do not use in buildings in proximity to fish
or birds. Essential for deep seated active voracious House Longhorn Beetle, where
the rate of destruction is too high and the moisture content of the wood is too
low to spread the Boron based pastes fast enough to be effective.
here for treatment prices and to buy -
size - 6mm to 10 mm, oval.
Damage is severe and very rapid.
Policy | Returns
Policy | Home Page
01626 331351 F: 01626 331143
Other Property Repair Systems
- how to use Boron based insecticides/fungicides to treat timber rots
and insect attack
- how to treat penetrating dampness in walls and plaster
- how to treat patio decks and yacht decks
- how to kill Dry Rot in buildings
- membranes for lining damp walls, floors, basements and cellars
- epoxy resins for repairing wood, concrete, brick and stone
- upgrade doors to 30 minutes fire resistance
- how to quickly repair joists and beams of any size
- treat steel with Intumescent Paint to provide fire protection
- systems of repair, with step by step methods
- how to repair timber beams
- how to kill and prevent woodworm and death watch beetle