Our history with a completion:
An old log house, logs lined on both sides. 1.5 months ago insects began to saw logs – so, that room was impossible to sleep at night. One week later, the sounds were heard already from two locations in the wall, and so on. A search for solutions was difficult because of impossibility of removing paneling.
Two weeks ago, We bought a “Decis” against the Colorado potato beetle, then we mixed solution of recommended doze + a large syringe with a long needle. My husband listened, where was a sawing, and in areas drilled small holes and treated them with a syringe. We had to drill a lot of holes as a number of beetles increasing. And we were not always sure whether the site was right. The success of the operation was not sure.
After that, we left for two weeks and two days ago we come back in the house and heard ... a silence.
Whether the larvae turned into beetles and flew away, or our method was great. It’s hard to say, but this weekend we slept peacefully.
P.S. a way to kill pests by “decis” recommended by a museum staff as available to everyone.