Abstract: The invention relates to a wood preservation method comprising applying a tubular or rod shaped wood preservation device in a hole drilled in a wood construction to be preserved. The wood preservation device comprising a wrapping device of capillary, hygroscopic and when moistened, swellable material, such as paper, enclosing an active compound in the form of dry powder, a granulate or a paste or gel. The wood preservation device may comprise either a cylindrical tube of capillary, hygroscopic and when moistened, swellable material, such as paper, the tube containing active compound in the form of dry powder or a granulate. The wood preservation device may be in the form of a laminate coiled to form a rod-shaped or may be used as a flat laminate. The laminate may comprise the capillary, hygroscopic and when moistened, swellable material and a layer of active compound in the form of dry powder, a granulate, a paste or a gel.