Timber Survey and Report for Wood Boring Insects

8 Jun

Following a Timber Survey and Report for Wood Boring Insects, we are currently carrying out a Woodworm treatment throughout a grade 2 listed building using pine oil paste and water based sprays with fungicide inhibitors to kill off all life cycles of wood boring pests.

Woodboring Insects

So what did we find?

On the initial survey we carried out an inspection of the timbers in the loft which gave evidence of woodworm emerging from several of the beams which shows recent activity in the last year or two. There was also evidence of old emergence / exit holes at several locations on the exposed beams and timbers. Activity was also found at a few locations on some of the exposed beams around the house.

The timbers in the loft were very dry and there were signs of needing some type of treatment. We did not see any immediate structural concern due to the density of the timbers and the age of the property but if the active areas were left untreated they would become weaker over several years. This would be subject to temperatures in the loft and the rooms, humidity etc, which will increase or decrease activity accordingly.

Adult woodworm will only live a few weeks and will emerge from new fresh holes and leave a powder deposit generally around May / September time. They will mate and lay eggs back into the emerged holes and the whole cycle / process starts again. They have at least a 2-year life cycle but usually no more than 5 years.

The purpose of any insecticide / wood preservative is to treat all exposed beams with either a paste and or water-based insecticide using a permethrin based active ingredient at 5% and 5.63% propiconazole.   This is a dual-purpose insecticide with fungicide inhibitors included. These are a couple of products which is used on the market by Abate.

As adults emerge they will come into contact with the insecticide eradicating them before they can breed. Should some adults emerge and not come into contact with the applied insecticide for any reason they will naturally die, not long after breeding has been complete. If the timber is treated the larvae will ingest whilst re-entering the timber through the flight holes and be eradicated that way.

When timbers are treated it is very likely you will still encounter adult beetles emerging the following season commonly called post treatment emergence as the treatments carried out will predominantly target the younger larvae in the earlier life cycles.

The whole dwelling would be guaranteed by us for 20 years and also underwritten by an insurance company via (CGS) The Construction Guarantee Service.

If you would like to have a Timber Survey and Report for Wood Boring Insects, please contact the Abate team on 01953 603390 or visit our Woodworm services website.

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