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Carol writes,

What can I use for termite protection for exposed treated beams of my 30 yr old house?

I live in Puerto Vallarta, Mexico in a concrete house with wooden beams that run from the exterior through the house and back out. The beams were treated with diesel fuel and old motor oil for years. Is there any alternative treatment at this late date or must I continue this yucky messy treatment?


Bora-Care can only be used on wood that has not been painted, stained or sealed. We are unfamiliar with the diesel/motor oil treatment but we will assume that the oils have penetrated into the wood a bit and Boracare can most likely not be used on the wood. Unfortunately, Bora-Care is the only product that can penetrate into wood and provide long term protection against termites and other wood destroying pests.

Answer last updated on: 06/29/2011

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