Hi there,

Can anyone recommend a good product to use in treating woodworm which is effective but not too expensive, any diy mixes? Will have a large area to treat ( 20+ large beams which are plastered over at the moment but we are opening them all out for treatment) in a 100y.o town house. I have been buying a 2.5 litres woodworm treatment (liquid with permetrina) from 'Colors' painting shop but it doesn't go very far at 25 euros... I have heard of using diesel oil as a cheaper alternative for treatment, has anyone used this effectively?
Any advice on the matter is much appreciated- thanks!

We used diesel with great effect. We have bare wood pine beams which are well perforated with holes and we could see quire a few active ones with fresh sawdust appearing. By using an old kitchen spray bottle and a piece of cardboard as a shield, the job was done in no time. There were a few more active ones 3 years later and we re-sprayed. That second treatment was 5 years ago and no more signs of activity.
I would certainly treat again the same way if needed. The smell clears quickly and doesn't leave any noticeable colouring even with the red diesel we used.