Chemical Woodworm Treatments

What do they actually do? How do they work?

Woodworm Treatment Chemicals Expert Advice Forum at Property Repair Systems - 01626 331351

 

 

 

     

Questions and Answers - woodworm treatment using chemicals - how do they work?

Q. WHAT IS A WOODWORM TREATMENT CHEMICAL?

A. Legally, in Europe, it is any chemical that has been approved by the Health and Safety Executive (HSE) under the relevant European Directive and which carries a current HSE Number. This means that it is considered to be both effective and safe for use throughout Europe for treating wood boring insects.

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Where can I buy an HSE Registered Woodworm Treatment?


Q. WHICH TYPES OF CHEMICAL ARE APPROVED FOR USE IN THE UK?

A. They fall into three groups - growth regulators, neuro toxins and biostats.


Q. HOW DOES A WOODWORM TREATMENT CHEMICAL ACTUALLY WORK?

A. Growth Regulators are a type of Hormone which stop the grub from changing into an adult beetle by preventing the development of its hard parts - the body case and wings - so it cannot pupate and therefore cannot go on to mate and produce more eggs.

Neuro toxins are contact insecticides - they kill all insects, including spiders and flies, on contact, by paralysing them, so they suffocate.

Biostats only kill insects that eat the treated material - in this case wood - and they work by stopping the egg or grub from benefiting from its food, so that it effectively starves.

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Q. WHAT LIMITS THESE WOODWORM CHEMICALS FROM BEING EFFECTIVE?

A. Reaching the grubs that are deep inside the wood, doing the damage. Economically, chemical treatments can only be applied to the accessible wood surfaces, so no matter how wonderful the chemical it can only really act once the Adult beetle has emerged. It may act by killing the adult or by killing the eggs, or both - but in all cases the chemicals are effectively only there to 'break the egg laying cycle'. The adult common furniture beetle only lives for about 3 weeks and does not eat any wood.


Q. DO ALL WOODWORM TREATMENTS KILL THE WOODWORM STRAIGHT AWAY?

A. No, only the Neuro Toxins can do that - the other two act on the eggs.


Q. WHICH IS THE BEST WOODWORM TREATMENT?

A. Ideally, a treatment that can reach the grubs already inside the wood - but this is not a chemical problem, this is a delivery problem. So, for normal surface treatment only the best treatment would be one that remains permanently in the wood, does not evaporate into the room, kills any eggs laid onto the wood, but leaves other insects unharmed.

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Where can I buy Boron based Woodworm Treatment?


Q. WHY ARE THERE FRESH BORE HOLES APPEARING, EVEN THOUGH I TREATED EVERYTHING MONTHS AGO WITH AN INSECTICIDE? SHOULD I TREAT EVERYTHING AGAIN?

A. Because the wood worm eggs bore into the wood and become grubs that live too deep in the wood to be reached with a normal surface treatment. No - don't treat again - it won't make any difference - common furniture beetles may emerge for up to 5 years after treatment.


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