Yes they certainly can, in fact Pied Piper uses and strongly recommends them. These devices can isolate insects that are on the furniture to prevent their spread, or keep them from crawling from elsewhere onto the furniture. Some come with a talc powder already in them, some come “dry”. These “dry” ones can have an oil or dry material placed into them. One device, the Climb-Up, features dual rings which can assist in identifying whether insects found in them are “coming or going”.
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