Hello, I recently bought a buffet hutch from Ebay... has a lot of holes (roughly between 50 and 100) with black stain around the holes. The holes vary in size but would roughly fit the plastic part of a ball point pen point in them. I treated the hole piece with Rentokil Borer Insecticide by injecting the holes and rubbing over the whole piece roughly. The next morning I found a dead insect on the floor nearby. It looks reddish dark brown and is about 8mm long. I can send photos if necessary. I spoke with a pest control expert as I am extremely worried about this, and he has said that this borer will only affect the piece of furniture concerned and only bores out of the timber once it is an adult and does not do any more damage at that point. If you could give me any further advice it would be greatly appreciated.